MALICIOUS — net.cpl

MALICIOUS — net.cpl is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Somhoveran family. 6 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

SHA-256: f90ef82126fe39445a74a0aa382a30408941d3dc49f8b716b214a8f7866196e1
SHA-1: 845a9b6b998949bec04764ba34ac29eb5f9da4c3
MD5: df201d4163ddf27e29303fc39537727c
imphash: e60d0e6577962a1096407913ed128742
ssdeep: 3072:IyrN/sVywaEj1Us10nfbyrN/sVywaEj1UsGxNNs:Nh9wv1Uveh9wv1UtxTs
TLSH: T1BC3C0207B9D1A0BCE2D3F9E86C54E26DF8955B2C253259807D832F5B801C76778A4ACC
Submitted as: net.cpl
File type: pe · Size: 116736 bytes
Verdict: malicious (98/100) · Family: Somhoveran

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.hmJfa4pdRVd
Kaspersky (KVRT): Worm.Win32.Wenper.b

MITRE ATT&CK

Why this verdict

The malicious score of 98/100 is the fusion of 8 weighted signals:

ClamAV (daily) flagged Win.Ransomware.Somhoveran-9870372-0 (rule Win.Ransomware.Somhoveran-9870372-0) - engine signal, weight 0.90, confidence 0.95
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 23 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
Dropped 3 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

Dynamic analysis (windows)

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

Dropped files

C:\Windows\System32\net.cpl - 62a937c67deecd166b99b030ea6dc1332c9ec78b6d1b99908b744046c7d77f7b
C:\Windows\System32\crypto.dll - 7dd0f855a4cd671fd6b96ae53ce16eee4fa95d3c45cbf66b7de81024101cff05
C:\Windows\System32\wlogon.dll - 434c49edd7e26655a65393c328187362c371cdf7959a98eef90cd62acd042470
C:\Windows\System32\lcss.exe - 2b70a4fbc8bfca8ad0dd33bc388fa48d29a9f506dbd0231bca3df134cbcc9c5d

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=1787659765&P2=404&P3=2&P4=GpyyqOu%2bTIUc6xhe%2f6tUmSOXEUCp%2fNDeh4HMFzUk1soghnGMy8EPn49xPotcLIQHNcDuFyzHXlctagb7gIVKjw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded IP addresses

57.155.101.212
20.184.175.8
20.247.185.124
4.230.171.124
172.215.188.225
74.178.240.61
4.150.223.107
135.233.95.135
52.110.12.26
52.110.12.22
20.184.175.16
20.112.250.133
52.123.128.14
203.26.79.13
135.233.45.222
52.110.12.30
52.123.252.243
52.110.12.10
135.232.92.34
72.153.5.61
172.66.2.5
52.148.114.188
52.110.12.16

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report