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: 0de0440285ed5d6b59db13684082b958fef4dcda4bd72f7c6ba001185c2bf3e9
SHA-1: 721ef10975ab667835986dc272127c8eea342884
MD5: eab65ba52ddfc171f991749f29971b69
imphash: e60d0e6577962a1096407913ed128742
ssdeep: 3072:IyrN/sVywaEj1Us10nfbyrN/sVywaEj1UsjaY:Nh9wv1Uveh9wv1Uiv
TLSH: T1B53C0207B9D1D0BCE5D3B9A41C98E32DF8911B6C263259807D411B6F902CB63B894BDD
Submitted as: net.cpl
File type: pe · Size: 117248 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)

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

Dropped files

C:\Windows\System32\wlogon.dll - 3f938cf1b5bca7b04530298a43aa5c99f691e02646e19467190e939bc0154e00
C:\Windows\System32\crypto.dll - 682038a681447bac6ffa08cc6162186b0b559cf3d0c2a62d90312a3d293b0969
C:\Windows\System32\lcss.exe - 0a80a5cc1239ea17e8e729baecd832ce28ef51edc9870877ff8aa9f58268f4cc
C:\Windows\System32\net.cpl - fc5884db3eb498d512729e9603a8700f55c94ef4151f1b1d3e9642e62d6400ce

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=1787651079&P2=404&P3=2&P4=BzDBzg7vadClUK5E08GQ30muB5bXWLgud1Z7Ab9I3Cky4%2fhEw807oahAah4eVNbERNTEiAoDnnlhGPCktMBP6Q%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded IP addresses

52.123.252.232
104.208.16.94
4.230.171.124
4.247.188.224
52.253.84.76
48.211.4.16
20.247.185.124
20.165.94.63
20.89.1.12
135.232.92.97
40.104.4.2
40.99.133.210
20.112.250.133
52.123.128.14
51.104.15.253
52.123.252.241
135.233.45.223
203.26.79.13
135.232.92.34
52.148.114.188
72.145.35.111
52.110.12.18
52.110.12.25

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

Analyzed on MalwareAnalyzer by Cyble · Open interactive report