MALICIOUS — net.cpl

MALICIOUS — net.cpl is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the OmJfa4pdRVd family. 6 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

SHA-256: 3d6fc38f7fa42a15a4b433f682f7ab38ef8a282b34c96d7c5823478fccc1daf6
SHA-1: 6169c8a084bdbd66a4fb0a4ebaca11c83bf6cc92
MD5: 34877332562ffe391ca6443fbb907b17
imphash: e60d0e6577962a1096407913ed128742
ssdeep: 6144:Nh9wv1Uveh9wv1UlcxrLVuMOq1WLJE5vxEwm0YZVYFrGb:Nh9wt4eh9wt2cJLEMOqkL6swm0Y7YFqb
TLSH: T12F4313078A89927DECDABD050CD4F36DD8241B6C04226A412FC2EB97B06D7579CD89E8
Submitted as: net.cpl
File type: pe · Size: 235520 bytes
Verdict: malicious (99/100) · Family: OmJfa4pdRVd

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.omJfa4pdRVd
Kaspersky (KVRT): Worm.Win32.Wenper.b

MITRE ATT&CK

Why this verdict

The malicious score of 99/100 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
Dropped a malicious payload (Somhoveran): wlogon.dll - dynamic signal, weight 0.62, confidence 0.90
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
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

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

Dropped files

C:\Windows\System32\wlogon.dll - 05235188dd9b2eb9ba03c6c848e39f33c7ba70306483c79133e5e785fce165d9
C:\Windows\System32\crypto.dll - be1ce486a8aa5e263b7db2fb5ad392c08c29f7bcd1c4f2561ca5e9ae7f784047
C:\Windows\System32\lcss.exe - 7dc8c456e7c89f68bf199a73ebbda86425e82c380c183a498a9a16b056ad4207
C:\Windows\System32\net.cpl - e9103312b1b3ecb2abb9070334bd61913dad239b408b0c1aedf32a13319cbcd1

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?P1=1787645711&P2=404&P3=2&P4=eYU3lu1RBRQytz6PNPDuMlejLeMof8KYL5x%2fE4U0f0eB2wW1BNrWvKxIenKhqzRNnrAxnnPvJV9MhB34VDAszg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded IP addresses

52.110.12.47
72.153.5.62
52.168.117.170
172.215.188.225
4.230.171.124
4.144.132.223
20.165.94.63
135.233.95.135
4.150.223.103
20.184.175.11
52.123.128.14
52.123.129.14
48.211.4.16
135.233.45.223
20.236.44.162
40.99.134.18
40.103.64.226
203.26.79.13
72.145.35.110
52.110.12.44
135.233.95.80
52.110.12.56
52.148.114.188

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report