MALICIOUS — 90f8c0a19a468bed17da067282ccc38a0e6183e9be2aee27932ca5b774f55f4f

MALICIOUS — 90f8c0a19a468bed17da067282ccc38a0e6183e9be2aee27932ca5b774f55f4f 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: 90f8c0a19a468bed17da067282ccc38a0e6183e9be2aee27932ca5b774f55f4f
SHA-1: 1e5fe907909c3f6dd08c30395ba81c5668df5b70
MD5: 95417377de662357c65d89ad5b88c589
imphash: b6230692891661869cecd581561a21f4
ssdeep: 12288:zW6n3sX4yCFr2ZemYOpSPIsGWeKZl4q7sioXr:zW6ncoyqOp6IsTl/mXr
TLSH: T1C94CBED87AC7CD54E8E97B86E44554BDD68BD12F582D2E8F0392C2386F812F3A472112
Submitted as: 90f8c0a19a468bed17da067282ccc38a0e6183e9be2aee27932ca5b774f55f4f
File type: pe · Size: 534770 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 12 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
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 29 external host(s) at runtime (15 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)

80070 behavior events · 2 ATT&CK techniques · 29 dropped files.

Dropped files

/opt/CAPEv2/storage/analyses/7645/files/83f80857872f645534245ed70ec87d90b804106d81306bf6d50a37350b3ee85b - 83f80857872f645534245ed70ec87d90b804106d81306bf6d50a37350b3ee85b
/opt/CAPEv2/storage/analyses/7645/files/847cc0d3e78b4a1b8f85d5925250aae3f450689cd795a9d49f1099443d033466 - 847cc0d3e78b4a1b8f85d5925250aae3f450689cd795a9d49f1099443d033466
/opt/CAPEv2/storage/analyses/7645/files/ea130af3079498f90906612d972032c536a2fe5f7d29ef0266cf29c39ef5906c - ea130af3079498f90906612d972032c536a2fe5f7d29ef0266cf29c39ef5906c
/opt/CAPEv2/storage/analyses/7645/files/ea1e7e10b1cf9e76a57ac26ec8b60e116fa4c6427894c43a1192198e66cedb79 - ea1e7e10b1cf9e76a57ac26ec8b60e116fa4c6427894c43a1192198e66cedb79
/opt/CAPEv2/storage/analyses/7645/files/593581a5adfe633f8cdc2c28030d097a369d35fc8fbbb30ec3f248ae3f47563a - 593581a5adfe633f8cdc2c28030d097a369d35fc8fbbb30ec3f248ae3f47563a
/opt/CAPEv2/storage/analyses/7645/files/5aeb1b2b657fb51c11579cf28aa31f36c43c2668b95c52eb3f63d505b630b8ec - 5aeb1b2b657fb51c11579cf28aa31f36c43c2668b95c52eb3f63d505b630b8ec
/opt/CAPEv2/storage/analyses/7645/files/95430f023bc75dacb74188c40cd90fad9318cc4547d22433864096c8331e4d38 - 95430f023bc75dacb74188c40cd90fad9318cc4547d22433864096c8331e4d38
/opt/CAPEv2/storage/analyses/7645/files/934e88ecc5aefddcb5d4775e6e6767946633f3825d524a24a96785effbb2ef06 - 934e88ecc5aefddcb5d4775e6e6767946633f3825d524a24a96785effbb2ef06
/opt/CAPEv2/storage/analyses/7645/files/3b6837272490eff989bbc5abb898c4d475d8c021d2c3ae48ef4f78aa6d60f305 - 3b6837272490eff989bbc5abb898c4d475d8c021d2c3ae48ef4f78aa6d60f305
/opt/CAPEv2/storage/analyses/7645/files/3b9d7130fde1d5599869d595f0196ceee3e0a167bd2de6b9e121e962130bed51 - 3b9d7130fde1d5599869d595f0196ceee3e0a167bd2de6b9e121e962130bed51
/opt/CAPEv2/storage/analyses/7645/files/a027a1751e727d475067b63db066db9142329ad1097c3c6d403e8852687aa5fa - a027a1751e727d475067b63db066db9142329ad1097c3c6d403e8852687aa5fa
/opt/CAPEv2/storage/analyses/7645/files/46fce1ea5ed91235d9e4014eef77c4445b613a077ccf1501fb555a2e3cf99535 - 46fce1ea5ed91235d9e4014eef77c4445b613a077ccf1501fb555a2e3cf99535
/opt/CAPEv2/storage/analyses/7645/files/f5e9b8ddc4ba4a54f52adeba9fa25f6a3fcdb02fdfa895c2eafc134324a99d46 - f5e9b8ddc4ba4a54f52adeba9fa25f6a3fcdb02fdfa895c2eafc134324a99d46
/opt/CAPEv2/storage/analyses/7645/files/93e02504a59a515e800aab5d6d5eeb24d88dfea4ebaed7604aae3cced62a9bd4 - 93e02504a59a515e800aab5d6d5eeb24d88dfea4ebaed7604aae3cced62a9bd4
/opt/CAPEv2/storage/analyses/7645/files/29d0c69b5081890ba4d090f4ea6c3e0ecd0a2debb486f4e41203212046e300c1 - 29d0c69b5081890ba4d090f4ea6c3e0ecd0a2debb486f4e41203212046e300c1

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=1786285104&P2=404&P3=2&P4=CAwbh5im8cmOlm2Xqd%2fsJ5HQR4bNysQ4JWJkWpYY42hjsf3reUGcxkFE3nORd6yJvc%2bq9Apu9mhkNmaEL7MgMw%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=1786285205&P2=404&P3=2&P4=YdMoAlW2OUQCaj6DyvSUCOpHHh4OeqhZTJhJ0nop0b4mUjtmVEe9jnG5JAMwpekuQ2OtLOGqiIsk9BvYIXerAg%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

20.42.73.31
4.247.188.233
4.144.132.223
4.230.171.124
135.232.92.97
135.232.92.137
172.178.240.161
172.178.240.163
203.26.79.13
52.110.12.56
52.110.12.2
172.215.188.232
135.232.92.34
72.153.5.131
52.148.114.188
52.110.12.53

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