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: 1bd71123fb10aff3b710bde96fffbf66d2254d7b53395d6ef678a9101a04be85
SHA-1: c27d4f1bae1c6aac0523c07b29e4b54217743d1d
MD5: 2ad2346eccc7dca0861256f5f8cce91b
imphash: e60d0e6577962a1096407913ed128742
ssdeep: 6144:Nh9wv1Ut3nh9wv1U1OmA17dNmOPrViORMa:Nh9wtah9wtuA1d9PrVBF
TLSH: T1BE421207E44595AAE682FF4D2D78E24DB4518F6C58391DC08D023FDB002EB93E9A4AD5
Submitted as: net.cpl
File type: pe · Size: 202240 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.mmJfa4pdRVd
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 20 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)

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

Dropped files

C:\Windows\System32\net.cpl - c4b47fb7362a653313f20486d61c500e784033c42b857c3bcf804c7938485c77
C:\Windows\System32\lcss.exe - 2d761d716008458d8f780308e1b3055412b4b657352e7141bb4469f1872c4917
C:\Windows\System32\crypto.dll - 813e26b55392b88c85c7a22c383155bdd95df3aa76f3b3968508908a91649c71
C:\Windows\System32\wlogon.dll - 77a51ec9a71c080a4ec32708c7a09a2fd466b5535a44f0cab008cb8580479875

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=1787645437&P2=404&P3=2&P4=mU1M8IF%2f5oORlCb3tiKGBPMt9Hxccwr7pS1dm1iDQEcKo8ZoVhtTOy2fFSIHCrytB2Oj9FlNQPjG6gEph5U%2bWA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded IP addresses

74.178.76.44
20.42.73.30
4.230.171.124
4.247.188.233
20.247.184.197
52.110.12.32
74.178.240.61
4.150.223.114
135.232.92.97
52.110.12.2
40.99.133.226
20.231.239.246
52.123.129.14
51.132.193.105
203.26.79.13
172.178.240.163
72.153.5.62
52.148.114.188
52.110.12.45
52.110.12.24

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

Analyzed on MalwareAnalyzer by Cyble · Open interactive report