MALICIOUS — wlogon.dll
MALICIOUS — wlogon.dll is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the ImJfa4pdRVd family. 6 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
9e834085647ae7b73f202dfae8e132d29242a4e11bb1d3845c1910b92accf37e - SHA-1:
20af99120faa9988ddab9be9e953555a593960d1 - MD5:
9cc4b834bdd1e94adc5c83fa4733a32f - imphash:
e60d0e6577962a1096407913ed128742 - ssdeep:
3072:IyrN/sVywaEj1UsEOBYJwyrN/sVywaEj1UsIrpVINJwbWxX:Nh9wv1Ut3nh9wv1UzrpIXt - TLSH:
T1FE3E12075046E0B9EAE3BE086C18D25DFC529F184D369E8069436FEF501D72F96E4A8C - Submitted as: wlogon.dll
- File type: pe · Size: 142336 bytes
- Verdict: malicious (99/100) · Family: ImJfa4pdRVd
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 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): net.cpl - 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 19 external host(s) at runtime (13 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)
314 behavior events · 2 ATT&CK techniques · 4 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- officeclient.microsoft.com
- odc.officeapps.live.com
- settings-win.data.microsoft.com
- licensing.mp.microsoft.com
- assets.msn.com
- www.bing.com
- v10.events.data.microsoft.com
Dropped files
- C:\Windows\System32\net.cpl -
3977a6f6974c408cad350f2fec28f3819db6d6a956da645dde4ae46749fc6546 - C:\Windows\System32\wlogon.dll -
04f79156755e6ed89db076e39b79d5709c96b0d0e8d76057a007025e977745fd - C:\Windows\System32\crypto.dll -
a7f0d01c174330ba7630dd1edc4aff444a788bcbee3b3b18a0c201fb2f138797 - C:\Windows\System32\lcss.exe -
a8d96e27dbdb7ad2bb92e29b847f4a392154c2a45c1d17d8e1a9bd59a11e07db
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Embedded IP addresses
- 52.123.252.198
- 40.79.150.122
- 52.230.60.54
- 85.210.193.152
- 4.230.171.124
- 20.184.175.0
- 74.178.240.51
- 135.232.92.137
- 20.236.44.162
- 72.153.5.62
- 135.233.45.223
- 172.66.2.5
- 203.26.79.13
- 13.89.179.12
- 162.159.142.9
- 52.110.12.26
- 52.148.114.188
- 52.110.12.3
- 135.233.95.80
More ImJfa4pdRVd samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report