MALICIOUS — b7584ea958f00d925bb9ed2b94672605a16622d2154abd2b8993e1ceefe885f3

MALICIOUS — b7584ea958f00d925bb9ed2b94672605a16622d2154abd2b8993e1ceefe885f3 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Kryptik family. 8 of 56 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: b7584ea958f00d925bb9ed2b94672605a16622d2154abd2b8993e1ceefe885f3
• SHA-1: dc66e4241a3673f02aed5224e04a30407691456e
• MD5: 5112ae8979b1f2149cf581a697f58bd1
• imphash: a5491ddab3ab64c1c40fad74c1ea58b8
• ssdeep: 24576:dgdhhQGGnnazLpj4VHogiuG1rnIAypJnNxUU5wuLY:dqgazxcG1DKn4lMY
• TLSH: T10555F1661F3F3613DA26C6B4F606BE9E84B7E425C23BBC0CD0A6741E939449B663044D
• Submitted as: b7584ea958f00d925bb9ed2b94672605a16622d2154abd2b8993e1ceefe885f3
• File type: pe · Size: 1279914 bytes
• Verdict: malicious (100/100) · Family: Kryptik

Detections (8 of 56 engines)

• MalwareAnalyser heuristics (entropy/packer): Themida/VMProtect
• ClamAV (daily): Win.Malware.Ulise-9786791-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Yara-Rules community: YR_Packer_VMProtect
• Detect It Easy (packer/type): DIE:Turbo Linker
• Microsoft Defender: Trojan:Win32/Wacatac.B!ml
• Emsisoft (Emergency Kit): Gen:Variant.Genie.59
• Kaspersky (KVRT): HEUR:Trojan.Win32.Kryptik.gen

MITRE ATT&CK

• T1112
• T1105

Why this verdict

The malicious score of 100/100 is the fusion of 13 weighted signals:

• ClamAV (daily) flagged Win.Malware.Ulise-9786791-0 (rule Win.Malware.Ulise-9786791-0) - engine signal, weight 0.90, confidence 0.95
• Microsoft Defender flagged Trojan:Win32/Wacatac.B!ml (rule Trojan:Win32/Wacatac.B!ml) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Gen:Variant.Genie.59 (rule Gen:Variant.Genie.59) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Trojan.Win32.Kryptik.gen (rule HEUR:Trojan.Win32.Kryptik.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 16 external host(s) and 9 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• YARA: Yara-Rules community flagged YR_Packer_VMProtect (rule YR_Packer_VMProtect) - engine signal, weight 0.35, confidence 0.70
• 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 Themida/VMProtect (rule Themida/VMProtect) - engine signal, weight 0.35, confidence 0.70
• Packing/obfuscation: Themida/VMProtect, Turbo Linker - static signal, weight 0.25, confidence 0.55
• Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
• Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
• Memory forensics: 5 finding(s) elsewhere in the guest, not attributed to this sample, e.g. RWX/private injected region in SppExtComObj.E (pid 5932) (rule windows.malfind.Malfind) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

19299 behavior events · 1 ATT&CK techniques · 1 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• 76.0.240.10.in-addr.arpa.
• 251.0.0.224.in-addr.arpa.
• d.1.d.1.c.4.2.1.4.9.5.2.6.e.8.b.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa.
• 1.0.240.10.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.
• 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.
• settings-win.data.microsoft.com
• 40.85.84.40.in-addr.arpa.
• v10.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.
• 110.223.150.4.in-addr.arpa.
• 16.4.211.48.in-addr.arpa.
• nexusrules.officeapps.live.com
• 146.109.171.150.in-addr.arpa.
• ecs.office.com

Dropped files

• C:\Program Files (x86)\qi\aysxyagipsmk.exe - 17b3beacdc3f58b4b06184d0fa566b1b1145ad400cef7988339ada95273c25ad

Embedded URLs

• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• w.cn
• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 57.155.101.212
• 4.150.223.110
• 48.211.4.16
• 20.42.179.192
• 52.123.129.14
• 40.84.85.40
• 51.104.15.252
• 4.150.223.103
• 20.184.175.2
• 4.150.223.99
• 72.153.5.130
• 72.145.35.97
• 52.148.114.188
• 20.184.175.12
• 20.42.65.93
• 40.79.150.123
• 172.215.188.232
• 4.247.188.233
• 52.178.17.234
• 51.116.246.104
• 57.155.104.224
• 20.42.73.26
• 85.210.193.152
• 52.110.12.25
• 4.230.171.124

File paths

• C:\=hC

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report