MALICIOUS — 6bb8eaed231d6c7e8d0b51b4164d3abeaa04bb942b67bceca044ee00bdd6fce8

MALICIOUS — 6bb8eaed231d6c7e8d0b51b4164d3abeaa04bb942b67bceca044ee00bdd6fce8 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the NmJfa4pdRVd family. 6 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

SHA-256: 6bb8eaed231d6c7e8d0b51b4164d3abeaa04bb942b67bceca044ee00bdd6fce8
SHA-1: db6016f34b720a3f8e5cd1aea076111c290e5d16
MD5: 0aea118321fb695cf0a48e4c11578409
imphash: e60d0e6577962a1096407913ed128742
ssdeep: 6144:Nh9wv1U7h9wv1UvZymFxGKKB0ZPjHXuokHBg:Nh9wtMh9wt4LGKy0jHFKa
TLSH: T18043124B65C469F8E5E37DBCE5D4E12EF8543F3C1132269138024B6F1126B439CA8A9E
Submitted as: 6bb8eaed231d6c7e8d0b51b4164d3abeaa04bb942b67bceca044ee00bdd6fce8
File type: pe · Size: 218624 bytes
Verdict: malicious (99/100) · Family: NmJfa4pdRVd

Detections (6 of 55 engines)

MalwareAnalyser heuristics (entropy/packer): UPX
ClamAV (daily): Win.Ransomware.Somhoveran-9870372-0
Detect It Easy (packer/type): DIE:Turbo Linker
Microsoft Defender: Trojan:Win32/Vindor!pz
Emsisoft (Emergency Kit): Gen:Trojan.ShellHook.nmJfa4pdRVd
Kaspersky (KVRT): Worm.Win32.Wenper.b

MITRE ATT&CK

Why this verdict

The malicious score of 99/100 is the fusion of 9 weighted signals:

ClamAV (daily) flagged Win.Ransomware.Somhoveran-9870372-0 (rule Win.Ransomware.Somhoveran-9870372-0) - engine signal, weight 0.90, confidence 0.95
Dropped a malicious payload (Somhoveran): lcss.exe - dynamic signal, weight 0.62, confidence 0.90
Memory forensics: 4 finding(s), e.g. RWX/private injected region in taskhostw.exe (pid 7908) (rule windows.malfind.Malfind) - memory signal, weight 0.60, 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 17 external host(s) at runtime (16 HTTP) - 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
Packing/obfuscation: UPX, high-entropy-sections:UPX1, 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

Dynamic analysis (windows)

315 behavior events · 2 ATT&CK techniques · 4 dropped files.

Dropped files

C:\Windows\System32\lcss.exe - d7a3adc78a92a25d4a6bea049c58b5ef5b94f9918c96a7152c9f47cccc0c629f
C:\Windows\System32\wlogon.dll - 62c3f52bd5a42c3592ad70711b28cad7e186e74c1b55908970f7db5f7fe6d5b7
C:\Windows\System32\net.cpl - 9be5f27e0c0bff8d20ff62c54171f6bcbdd68499914d0048d741dceed06227cf
C:\Windows\System32\crypto.dll - b1121d14c2fe6e9f045d4ac5a3c84560cdb11a4de376bb9b4aed011bc3e7b12b

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787637127&P2=404&P3=2&P4=RdXTMiuklNHbxoXi8Q6ERo5wp23iMj2tcyS8LFIhMRzjnzjU17PZUnHDIcQsBtF35hRgq3ig6%2bcbsKfiVcdzGA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded IP addresses

20.184.175.14
48.211.4.16
4.230.171.124
52.230.60.54
135.233.95.144
20.42.73.26
74.178.240.51
20.112.250.133
52.123.128.14
20.42.73.25
203.26.79.13
135.233.45.222
74.179.71.159
52.148.114.188
52.110.12.49
72.154.7.110
52.110.12.46

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report