MALICIOUS — 104c13ea38db4f658a71418fdc9179987132261b6bdc1b0b35e5f878b057c79c

MALICIOUS — 104c13ea38db4f658a71418fdc9179987132261b6bdc1b0b35e5f878b057c79c 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: 104c13ea38db4f658a71418fdc9179987132261b6bdc1b0b35e5f878b057c79c
SHA-1: 315f639cfdfa6789c57898dbdb96cad8971074fe
MD5: e74505a1b75a301efa358b64067fa2ee
imphash: b6230692891661869cecd581561a21f4
ssdeep: 12288:zW6n3sX4yCFr2ZemYOpSPIsGWeKZl4q7sioX5:zW6ncoyqOp6IsTl/mX5
TLSH: T10C4CBED87AC7CD54E8E97B86E44554BDD68BD12F582D2E8F0392C2386F812F3A472112
Submitted as: 104c13ea38db4f658a71418fdc9179987132261b6bdc1b0b35e5f878b057c79c
File type: pe · Size: 534773 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 13 weighted signals:

ClamAV (daily) flagged Win.Worm.Guap-4 (rule Win.Worm.Guap-4) - engine signal, weight 0.90, confidence 0.95
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
Kaspersky (KVRT) flagged Trojan.Win32.Fsysna.gevi (rule Trojan.Win32.Fsysna.gevi) - 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 36 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
Anti-analysis: T1497.001 - dynamic signal, weight 0.40, confidence 0.75
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)

79901 behavior events · 2 ATT&CK techniques · 29 dropped files.

Dropped files

/opt/CAPEv2/storage/analyses/7655/files/1228da704f50c1ed43af21e0fded69cbfa4d07204dbc438fd840652cacd26cbc - 1228da704f50c1ed43af21e0fded69cbfa4d07204dbc438fd840652cacd26cbc
/opt/CAPEv2/storage/analyses/7655/files/598652011ac6f231389df12e6e55260196777500beb1895795706bc77f96a71f - 598652011ac6f231389df12e6e55260196777500beb1895795706bc77f96a71f
/opt/CAPEv2/storage/analyses/7655/files/e4d409449ded03b89391899a99086b7b7ab493dafa756d020d76bea5786ac28c - e4d409449ded03b89391899a99086b7b7ab493dafa756d020d76bea5786ac28c
/opt/CAPEv2/storage/analyses/7655/files/cf54ed21956d85eab3bc39d77514753ea83dc235fe2532162290a19fd5dcd517 - cf54ed21956d85eab3bc39d77514753ea83dc235fe2532162290a19fd5dcd517
/opt/CAPEv2/storage/analyses/7655/files/91e70cd38a8f40f9c083e1d81dbb79db6d78c715bcdd93b66cbc4fc67a42505d - 91e70cd38a8f40f9c083e1d81dbb79db6d78c715bcdd93b66cbc4fc67a42505d
/opt/CAPEv2/storage/analyses/7655/files/7fa16931cd6e320b3d51d8e312c7639e2b685d113d0fbf6349d1e4b31b53e5b0 - 7fa16931cd6e320b3d51d8e312c7639e2b685d113d0fbf6349d1e4b31b53e5b0
/opt/CAPEv2/storage/analyses/7655/files/7ecf65254e26446400c043d6450155f6bd309489232e9eebca7b5ee8e0897c71 - 7ecf65254e26446400c043d6450155f6bd309489232e9eebca7b5ee8e0897c71
/opt/CAPEv2/storage/analyses/7655/files/9f7922ed64a4607e689afbb6165dc7267a381cfd25b40268512dd544a9da5ee8 - 9f7922ed64a4607e689afbb6165dc7267a381cfd25b40268512dd544a9da5ee8
/opt/CAPEv2/storage/analyses/7655/files/cc1052e8bb595b77593c1dccaae8eda10538cb036de500193f41c6b88b30dd15 - cc1052e8bb595b77593c1dccaae8eda10538cb036de500193f41c6b88b30dd15
/opt/CAPEv2/storage/analyses/7655/files/c437814cae59c36becff43239c814fbeb753d75f746e3556132ce120bbe1e66c - c437814cae59c36becff43239c814fbeb753d75f746e3556132ce120bbe1e66c
/opt/CAPEv2/storage/analyses/7655/files/ae200d9e3d17410647920560b3cf21094d5e1cb8fdf37bc301bbe3de09afdaac - ae200d9e3d17410647920560b3cf21094d5e1cb8fdf37bc301bbe3de09afdaac
/opt/CAPEv2/storage/analyses/7655/files/9a574077b1949be16eaebdbcd7806041eb9fe1f7f05a4edba006e15d060e90dd - 9a574077b1949be16eaebdbcd7806041eb9fe1f7f05a4edba006e15d060e90dd
/opt/CAPEv2/storage/analyses/7655/files/ecf32f800474ee0a6334de2e8b9e504ea6759afd8177d4edc2781ca8e703c296 - ecf32f800474ee0a6334de2e8b9e504ea6759afd8177d4edc2781ca8e703c296
/opt/CAPEv2/storage/analyses/7655/files/e8ec6a5fc73e1be97e6e6e2ba35b7cd11e669286ffacd3f86b937e93f6f3dd41 - e8ec6a5fc73e1be97e6e6e2ba35b7cd11e669286ffacd3f86b937e93f6f3dd41
/opt/CAPEv2/storage/analyses/7655/files/c75801d90d53d573c9f97a7f8f439238feb6ea0cc4bde770482a1ec11a04f892 - c75801d90d53d573c9f97a7f8f439238feb6ea0cc4bde770482a1ec11a04f892

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=1786285951&P2=404&P3=2&P4=KsCcWgHtWwdy61EPLAbNfDH3V8hBkZTB768DaUI5XQh8feVCQE6xjeGL7IflQykW5WkoKNpsibERgY1XLFRixQ%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=1786286022&P2=404&P3=2&P4=ck2igTJt0qRnQSZwD57IM1Z79GQCdRRRaMjWvxWPBj%2bievgTpggLPByaFbXfJiQLlEkYPy2O9HH8xDWKSo2qUg%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

4.150.223.96
52.123.252.204
52.230.60.54
85.210.193.152
4.230.171.124
52.123.252.219
135.232.92.34
74.179.77.164
40.79.163.154
74.178.76.128
203.26.79.13
135.234.160.245
172.215.188.232
52.110.12.30
52.110.12.48
135.234.160.244
72.145.35.116
40.79.150.121
51.132.193.104
52.148.114.188
135.233.95.80
52.110.12.37
52.110.12.22

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