MALICIOUS — a3f56bb803b9077c2523cc33c9a2c4dd68e7b4dc05e7f9569880eaa6b2ac9694

MALICIOUS — a3f56bb803b9077c2523cc33c9a2c4dd68e7b4dc05e7f9569880eaa6b2ac9694 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Small family. 4 of 52 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

• SHA-256: a3f56bb803b9077c2523cc33c9a2c4dd68e7b4dc05e7f9569880eaa6b2ac9694
• SHA-1: c9ed759a66271635fdb7a286376720b9e181e859
• MD5: 37946bb3fb00807c058d37c155589e98
• imphash: 1e4c0da5737da53aff5e6e0ab7de1efa
• ssdeep: 384:KFnoYaR2cmZO2Zp+Nye8pqrmub8TyztsDN:KV4R2oKK8o8TyJc
• TLSH: T19128FB84D7E13B24CA4BD84921114C5CBF9167B3E69229DD830A9362D345BF7CEE2782
• Submitted as: a3f56bb803b9077c2523cc33c9a2c4dd68e7b4dc05e7f9569880eaa6b2ac9694
• File type: pe · Size: 17920 bytes
• Verdict: malicious (100/100) · Family: Small

Detections (4 of 52 engines)

• ClamAV (daily): Win.Malware.Fugrafa-9806497-0
• Microsoft Defender: TrojanSpy:Win32/Small.M
• Emsisoft (Emergency Kit): Gen:Variant.Oberal.8
• Kaspersky (KVRT): Trojan.Win32.Small.xxd

MITRE ATT&CK

• T1057
• T1547.001
• T1112
• T1003.001

Why this verdict

The malicious score of 100/100 is the fusion of 9 weighted signals:

• ClamAV (daily) flagged Win.Malware.Fugrafa-9806497-0 (rule Win.Malware.Fugrafa-9806497-0) - engine signal, weight 0.90, confidence 0.95
• 2 behavioral detection(s): Credential Access: LSASS memory access [critical] (rule tl-cred-lsass) - dynamic signal, weight 0.80, confidence 0.90
• Microsoft Defender flagged TrojanSpy:Win32/Small.M (rule TrojanSpy:Win32/Small.M) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Gen:Variant.Oberal.8 (rule Gen:Variant.Oberal.8) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged Trojan.Win32.Small.xxd (rule Trojan.Win32.Small.xxd) - engine signal, weight 0.55, confidence 0.85
• Observed at runtime: Registry Run Key Persistence (T1547.001) (rule Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90
• enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Contacted 4 external host(s) at runtime - network signal, weight 0.12, confidence 0.55

Dynamic analysis (windows)

13343 behavior events · 2 ATT&CK techniques · 0 dropped files.

Runtime network

• 251.0.0.224.in-addr.arpa.
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa.
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa.
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa.
• 252.0.0.224.in-addr.arpa.
• ocsp.digicert.com
• 157.37.11.23.in-addr.arpa.
• 123.133.221.23.in-addr.arpa.
• ctldl.windowsupdate.com
• tas02.sls.update.microsoft.com
• ff02:0:0:0:0:0:1:3
• 224.0.0.252
• 10.240.0.1
• 23.11.37.157
• 4.243.160.20 KR · Busan · AS8075 Microsoft Corporation
• 23.40.52.111
• 20.165.94.63 US · San Antonio · AS8075 Microsoft Corporation

Embedded IP addresses

• 4.243.160.20
• 20.165.94.63

More Small samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report