MALICIOUS — 72c7dbfa84879c8669a209103f7e15d61b3d0aedc333592eac88cfb8ceac3cfe

MALICIOUS — 72c7dbfa84879c8669a209103f7e15d61b3d0aedc333592eac88cfb8ceac3cfe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Fsysna family. 6 of 52 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

SHA-256: 72c7dbfa84879c8669a209103f7e15d61b3d0aedc333592eac88cfb8ceac3cfe
SHA-1: 04a505291c309b3b7eff8e1caee4379903f66d09
MD5: 4e84601ddf6f7ee00d4893a57109250c
imphash: b6230692891661869cecd581561a21f4
ssdeep: 12288:zW6n3sX4yCFr2ZemYOpSPIsGWeKZl4q7sioX3:zW6ncoyqOp6IsTl/mX3
TLSH: T1764CBED87AC7CD54E8E97B86E44554BDD68BD12F582D2E8F0392C2386F812F3A472112
Submitted as: 72c7dbfa84879c8669a209103f7e15d61b3d0aedc333592eac88cfb8ceac3cfe
File type: pe · Size: 534764 bytes
Verdict: malicious (100/100) · Family: Fsysna

Detections (6 of 52 engines)

ClamAV (daily): Win.Worm.Guap-4
YARA: delivr.to detections: DLV_Maldoc_VBA_AutoExec
YARA: MalwareAnalyser community pack: TL_Windows_Persistence_RunKey
Microsoft Defender: Trojan:Win32/Fsysna!pz
Emsisoft (Emergency Kit): Gen:Heur.Spesr.VB.1
Kaspersky (KVRT): Trojan.Win32.Fsysna.gevi

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 14 weighted signals:

ClamAV (daily) flagged Win.Worm.Guap-4 (rule Win.Worm.Guap-4) - engine signal, weight 0.90, confidence 0.95
Memory forensics: 4 finding(s), e.g. RWX/private injected region in svchost.exe (pid 976) (rule windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85
Microsoft Defender flagged Trojan:Win32/Fsysna!pz (rule Trojan:Win32/Fsysna!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Heur.Spesr.VB.1 (rule Gen:Heur.Spesr.VB.1) - engine signal, weight 0.55, confidence 0.85
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
1 behavioral detection(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Contacted 32 external host(s) at runtime (14 HTTP) - network signal, weight 0.40, confidence 0.80
Anti-analysis: T1497.001, T1082 - dynamic signal, weight 0.40, confidence 0.75
Extracted BlackShades config (0 C2) - engine signal, weight 0.45, confidence 0.60
YARA: delivr.to detections flagged DLV_Maldoc_VBA_AutoExec (rule DLV_Maldoc_VBA_AutoExec) - engine signal, weight 0.35, confidence 0.70
YARA: MalwareAnalyser community pack flagged TL_Windows_Persistence_RunKey (rule TL_Windows_Persistence_RunKey) - engine signal, weight 0.35, confidence 0.70
persist via registry run key (rule persist via registry run key) - capa signal, weight 0.35, confidence 0.60
communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

81434 behavior events · 2 ATT&CK techniques · 30 dropped files.

Dropped files

/opt/CAPEv2/storage/analyses/7685/files/57fa9d19da7307a4925bbd3c9ca14e18593a712c57bb10d986f39e7c807097ac - 57fa9d19da7307a4925bbd3c9ca14e18593a712c57bb10d986f39e7c807097ac
/opt/CAPEv2/storage/analyses/7685/files/b9573ffb2f3326a80f1e22b00d45409e0b8821ee471096900cc54d783c07f60d - b9573ffb2f3326a80f1e22b00d45409e0b8821ee471096900cc54d783c07f60d
/opt/CAPEv2/storage/analyses/7685/files/1df2f1ab9f2376b7d50560c9f5ff26dfbc3aef95db3b316e10bb256fe3235990 - 1df2f1ab9f2376b7d50560c9f5ff26dfbc3aef95db3b316e10bb256fe3235990
/opt/CAPEv2/storage/analyses/7685/files/9c56d774adcaaaaee27893017687a6882221af51adbe72164a5971c64f7707a9 - 9c56d774adcaaaaee27893017687a6882221af51adbe72164a5971c64f7707a9
/opt/CAPEv2/storage/analyses/7685/files/55408d7fce87532e62f01aa90469ea90890cee4f9205271b7de978d3531585ef - 55408d7fce87532e62f01aa90469ea90890cee4f9205271b7de978d3531585ef
/opt/CAPEv2/storage/analyses/7685/files/416a4c58dc72e457130f5cea8d31ad14ea0ffda60bb80834e28af76a31b37c6e - 416a4c58dc72e457130f5cea8d31ad14ea0ffda60bb80834e28af76a31b37c6e
/opt/CAPEv2/storage/analyses/7685/files/a6fd6e1aa97c7e452d7fe642d80f3284bc01d8c56d17fef573d6db46b9a335c4 - a6fd6e1aa97c7e452d7fe642d80f3284bc01d8c56d17fef573d6db46b9a335c4
/opt/CAPEv2/storage/analyses/7685/files/e22dfdda31de97f22106b99fe5ca1eedc4ecbbb6c3382cbac01df3adfb3e80d5 - e22dfdda31de97f22106b99fe5ca1eedc4ecbbb6c3382cbac01df3adfb3e80d5
/opt/CAPEv2/storage/analyses/7685/files/ef4407dbdc7270511064e95c8a5b8fa38a56d44c0a0616b47eca286657c12026 - ef4407dbdc7270511064e95c8a5b8fa38a56d44c0a0616b47eca286657c12026
/opt/CAPEv2/storage/analyses/7685/files/57081d10ebfbee5768c2f76ded5bb00660712eb0f89e8f5dc5a9fa51d18c90ce - 57081d10ebfbee5768c2f76ded5bb00660712eb0f89e8f5dc5a9fa51d18c90ce
/opt/CAPEv2/storage/analyses/7685/files/c6a90a33999990053f46888e01a48dd2b19bac51def9cfc6a58874fe5477c30b - c6a90a33999990053f46888e01a48dd2b19bac51def9cfc6a58874fe5477c30b
/opt/CAPEv2/storage/analyses/7685/files/02848aee5ef47da0c3cc33deebd12b3a07110edf4c2adb46e219185642f477ed - 02848aee5ef47da0c3cc33deebd12b3a07110edf4c2adb46e219185642f477ed
/opt/CAPEv2/storage/analyses/7685/files/69181aa6865da91a61b263a910a94e4fce5aebe1d4e030be836b31b69a2dead9 - 69181aa6865da91a61b263a910a94e4fce5aebe1d4e030be836b31b69a2dead9
/opt/CAPEv2/storage/analyses/7685/files/e8da3d57d721da7810cb3536ef6d464d4b3661d36d227acdbba9c4b0770b2a46 - e8da3d57d721da7810cb3536ef6d464d4b3661d36d227acdbba9c4b0770b2a46
/opt/CAPEv2/storage/analyses/7685/files/6d7edac7f1f9dbf094eb2586dbe71ddb77b92ee3b12cb70adbad1e073f983573 - 6d7edac7f1f9dbf094eb2586dbe71ddb77b92ee3b12cb70adbad1e073f983573

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://203.26.79.13/filestreamingservice//files/736bdc20-582e-46c5-ba31-d31d3d97258e/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/736bdc20-582e-46c5-ba31-d31d3d97258e?P1=1786288350&P2=404&P3=2&P4=dTVhBV7KZnR8VvcMY42DHfB1NCxDh9HGrtLs7X7%2fFafKEbz5SHPaYrBqgdqGVniqBiNkaLeE3MIy5dS1ncxXSw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice//files/c48ae315-f580-4b6c-801e-58a0f885749d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/c48ae315-f580-4b6c-801e-58a0f885749d?P1=1786288465&P2=404&P3=2&P4=aElMIdE5zVZ%2fGMN8GR1YBHOHmyoAsV5UkFek2zQxT7WU%2fT6VJHh0VBc4F43%2b2gfU45fVgP4%2b1iWvygAgyuUTQA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded domains

server.com
tsymantec.com
tsecurityresponse.symantec.com
tsarc.com
twww.sarc.com
twww.sophos.com
tsophos.com
twww.mcafee.com
tmcafee.com
tliveupdate.symantecliveupdate.com
twww.viruslist.com
tviruslist.com
tf-secure.com
twww.f-secure.com
tf-prot.com
twww.f-prot.com
tkaspersky.com
tkaspersky-labs.com
twww.avp.com
tavp.com
twww.kaspersky.com
twww.networkassociates.com
tnetworkassociates.com
twww.ca.com
tca.com

Embedded IP addresses

20.184.175.5
52.123.252.245
4.247.188.233
4.230.171.124
20.247.184.197
135.232.92.97
74.178.240.61
52.168.117.174
172.178.240.162
135.233.45.223
203.26.79.13
74.178.76.44
4.247.188.224
72.145.35.108
52.148.114.188
20.165.94.46
52.110.12.56
52.110.12.47

Registry keys

HKCU\Software\Microsoft\Windows\CurrentVersion\Run

File paths

C:\Program
C:\WINDOWS\system32\drivers\etc\hosts

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report