MALICIOUS — aeb5317d9ecfd982c0615147942a5f433b83f60ed5307aebf4e7b1bbad5fa464

MALICIOUS — aeb5317d9ecfd982c0615147942a5f433b83f60ed5307aebf4e7b1bbad5fa464 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Small family. 7 of 56 detection engines flagged it, exhibiting 7 ATT&CK techniques.

Identification

• SHA-256: aeb5317d9ecfd982c0615147942a5f433b83f60ed5307aebf4e7b1bbad5fa464
• SHA-1: 4a41889dc60eacdd98e85464d718f584449841e0
• MD5: ec5c497fd08d2310433d91c429e9af89
• imphash: a5c96e0cf7e049124ffcb788427ded12
• ssdeep: 49152:67N1ahCO0V7N1ahCb0V7N1ahCU0V7N1ahCa0V7N1ahC1:6777O7B7n71
• TLSH: T14D609F7E13377323DA7ECA284A087F4F006AFC5A50B5588C92A7843CA3E5C776951369
• Submitted as: aeb5317d9ecfd982c0615147942a5f433b83f60ed5307aebf4e7b1bbad5fa464
• File type: pe · Size: 3538944 bytes
• Verdict: malicious (100/100) · Family: Small

Detections (7 of 56 engines)

• capa (capabilities): capability:collection/keylog
• ClamAV (daily): Win.Malware.Fugrafa-9806497-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Stratosphere IPS: STRATO_Malicious_UserAgent
• Microsoft Defender: Trojan:Win32/Small.HNA!MTB
• Emsisoft (Emergency Kit): Trojan.Agent.AKHT
• Kaspersky (KVRT): Trojan.Win32.Small.xxd

MITRE ATT&CK

• T1547.001
• T1071.001
• T1057
• T1056.001
• T1543.003
• T1112
• T1003.001

Why this verdict

The malicious score of 100/100 is the fusion of 19 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) across 2 rule(s): Credential Access: LSASS memory access [critical] (rule tl-cred-lsass) - dynamic signal, weight 0.83, confidence 0.90
• Microsoft Defender flagged Trojan:Win32/Small.HNA!MTB (rule Trojan:Win32/Small.HNA!MTB) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Trojan.Agent.AKHT (rule Trojan.Agent.AKHT) - 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
• YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.60, confidence 0.70
• Observed at runtime: Registry Run Key Persistence (T1547.001) (rule Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90
• Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
• capture keystrokes (rule capture keystrokes) - capa signal, weight 0.40, confidence 0.80
• Contacted 1 external host(s) and 18 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• YARA: Stratosphere IPS flagged STRATO_Malicious_UserAgent (rule STRATO_Malicious_UserAgent) - engine signal, weight 0.45, confidence 0.70
• capa (capabilities) flagged capability:collection/keylog (rule capability:collection/keylog) - 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
• Embedded network infrastructure: http://bsalsa.com, http://bsalsa.com/, http://www.universal101.com/upd.sc - static signal, weight 0.35, confidence 0.60
• communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
• 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
• Extracted generic config (1 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
• Memory forensics: 2 finding(s) elsewhere in the guest, not attributed to this sample, e.g. SSDT hook (rule windows.ssdt.SSDT) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

107088 behavior events · 3 ATT&CK techniques · 0 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• c.pki.goog
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org
• tas02.sls.update.microsoft.com
• ctldl.windowsupdate.com
• update.googleapis.com
• login.live.com
• desktop-hsgcbep
• v20.events.data.microsoft.com
• config.edge.skype.com
• windows.msn.com
• www.msn.com
• officeclient.microsoft.com
• odc.officeapps.live.com
• settings-win.data.microsoft.com

Embedded URLs

• http://bsalsa.com
• http://bsalsa.com/
• http://www.universal101.com/upd.sc
• http://www.universal101.com/upd02.app
• http://gomyron.com/MTgzNjk=/2/6433/ronnoagraug/
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• http://c.pki.goog/r/r1.crl
• http://x2.c.lencr.org/
• http://ye.c.lencr.org/
• http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
• http://yr.c.lencr.org/

Embedded domains

• bsalsa.com
• www.universal101.com
• upd02.app
• gomyron.com
• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 4.150.223.115
• 52.123.252.240
• 4.230.171.124
• 57.155.101.212
• 4.144.132.223
• 20.42.179.204
• 20.165.94.54
• 135.233.95.144
• 4.150.223.112
• 135.233.45.222
• 135.234.160.245
• 40.84.85.40
• 20.184.175.10
• 20.184.175.1
• 52.148.114.188
• 52.110.12.1
• 52.110.12.38
• 72.154.7.108

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report