MALICIOUS — 41f07d2bc94be992e5d9b50572b3dc575e6cb4ca248548cda050a8b33d917b5b

MALICIOUS — 41f07d2bc94be992e5d9b50572b3dc575e6cb4ca248548cda050a8b33d917b5b is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Urelas family. 8 of 56 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 41f07d2bc94be992e5d9b50572b3dc575e6cb4ca248548cda050a8b33d917b5b
• SHA-1: 0a52937f33ec36af1c26706fce357424f7166f2a
• MD5: 8d02b4d7a536dda8c6d8685574762baa
• imphash: 09d0478591d4f788cb3e5ea416c25237
• ssdeep: 6144:6YEoo/4rnzsBw+EwKEnePrNqhdFvmNpqB/A8/QJQCe2zdRQ0yhmcvZpIw3h9h/Q:6uHrcYPkePhqpvmaBvYJQCe2I9fRa
• TLSH: T13349230C6655FF92D73B1E04B83CE61FA544BE6F42D87C1A1803825A2E5712BA99312F
• Submitted as: 41f07d2bc94be992e5d9b50572b3dc575e6cb4ca248548cda050a8b33d917b5b
• File type: pe · Size: 408064 bytes
• Verdict: malicious (100/100) · Family: Urelas

Detections (8 of 56 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:.text
• ClamAV (daily): Win.Trojan.Urelas-6997280-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• Detect It Easy (packer/type): DIE:Turbo Linker
• Microsoft Defender: Trojan:Win32/SystemBC.psyT!MTB
• Emsisoft (Emergency Kit): Generic.Urelas.C3A39B5E
• Trellix Stinger (McAfee): Obfuscated-FKS!hb
• Kaspersky (KVRT): HEUR:Trojan.Win32.Wecod.gen

MITRE ATT&CK

• T1112

Why this verdict

The malicious score of 100/100 is the fusion of 12 weighted signals:

• ClamAV (daily) flagged Win.Trojan.Urelas-6997280-0 (rule Win.Trojan.Urelas-6997280-0) - engine signal, weight 0.90, confidence 0.95
• Microsoft Defender flagged Trojan:Win32/SystemBC.psyT!MTB (rule Trojan:Win32/SystemBC.psyT!MTB) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Generic.Urelas.C3A39B5E (rule Generic.Urelas.C3A39B5E) - engine signal, weight 0.55, confidence 0.85
• Trellix Stinger (McAfee) flagged Obfuscated-FKS!hb (rule Obfuscated-FKS!hb) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Trojan.Win32.Wecod.gen (rule HEUR:Trojan.Win32.Wecod.gen) - 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
• Contacted 14 external host(s) and 12 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• Detect It Easy (packer/type) flagged DIE:Turbo Linker (rule DIE:Turbo Linker) - engine signal, weight 0.35, confidence 0.70
• MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-sections:.text (rule high-entropy-sections:.text) - engine signal, weight 0.35, confidence 0.70
• Packing/obfuscation: high-entropy-sections:.text, Turbo Linker - static signal, weight 0.25, confidence 0.55
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• 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)

9419 behavior events · 1 ATT&CK techniques · 1 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
• 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.
• 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.
• 252.0.0.224.in-addr.arpa.
• 250.255.255.239.in-addr.arpa
• update.googleapis.com
• desktop-hsgcbep
• self.events.data.microsoft.com
• 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
• 251.0.0.224.in-addr.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
• 1.0.240.10.in-addr.arpa
• 252.0.0.224.in-addr.arpa

Dropped files

• 7803f177070167456a31f1216e29dd2424833ab7d44d0750edc4b2e7088cde86 - 7803f177070167456a31f1216e29dd2424833ab7d44d0750edc4b2e7088cde86

Embedded URLs

• 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

• r.ga
• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 20.42.65.94
• 72.145.35.97
• 48.211.4.16
• 72.145.35.110
• 20.42.65.84
• 20.42.73.27
• 92.223.78.30
• 52.148.114.188
• 4.150.223.98
• 4.150.223.105
• 72.145.35.96
• 172.172.255.216
• 4.247.188.233
• 203.26.79.13
• 72.145.35.103
• 172.172.255.218
• 72.145.35.102
• 20.42.65.90
• 52.253.84.76
• 52.123.252.222
• 4.230.171.124
• 52.182.141.63
• 72.153.5.128

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

Analyzed on MalwareAnalyzer by Cyble · Open interactive report