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: eae01d4b401bb214972e5773e9087f8c63cf7ac77dfda4f81e6c8fa9ee971785
SHA-1: a1a50f6a3159ea63b8dcbfb86b0c4160fd3ac0e8
MD5: 6e605f66ffdaff0ba305c6e46c2b25d4
imphash: e60d0e6577962a1096407913ed128742
ssdeep: 3072:IyrN/sVywaEj1UsEOBYJwyrN/sVywaEj1UsfxVCNkJRWL7:Nh9wv1Ut3nh9wv1UcxQN8WL7
TLSH: T15F3E0203A162D1B8E5E3B9105C6DC20DF5614F6C48269C806E061BDB909EB6BE5F4B8E
Submitted as: net.cpl
File type: pe · Size: 144384 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.imJfa4pdRVd
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 21 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\crypto.dll - 84065e0aa45fe56c2a03a9993bccac7ef08da8f88fb871389bc553538c469cdd
C:\Windows\System32\net.cpl - 1e06387b3e5c0c39452688c9cafa1d19ff4c9a48e8be54bc461fd895509aebd4
C:\Windows\System32\lcss.exe - 33d4018377c4b68ed9f5529a40950d2074709841fb2d6413c953192ba27d40ff
C:\Windows\System32\wlogon.dll - af3cfa88835ce531ce53a839b866053bd648c6cc3635404fc57c111f665a943b

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=1787663673&P2=404&P3=2&P4=TaAVPjzEtGnwe72TxVa3%2fn6k0qKg0LAI2LmnnBHqXkDBGWFBrBUbWIxUV9AnpEDMG8zZZ6x6TGh4rHyw96ex1w%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded IP addresses

4.150.223.115
52.230.60.54
57.155.104.224
4.230.171.124
74.178.76.128
52.168.112.67
135.233.95.135
20.112.250.133
52.123.128.14
52.123.129.14
40.99.134.2
20.42.73.31
52.123.252.218
135.234.160.245
203.26.79.13
72.154.7.110
74.178.76.44
52.148.114.188
52.110.12.19
52.110.12.2
92.223.78.30

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report