MALICIOUS — 023fa526723302d74766a06bc598f93cd043bfd2e12a283dbdf5666e4a8a79c9
MALICIOUS — 023fa526723302d74766a06bc598f93cd043bfd2e12a283dbdf5666e4a8a79c9 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the VBObfus family. 4 of 25 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
023fa526723302d74766a06bc598f93cd043bfd2e12a283dbdf5666e4a8a79c9 - SHA-1:
980362f3233333dca4a4be1d240d1d10c7e756d4 - MD5:
de43e72d0a81814a49f770bd047055f8 - imphash:
7a9d67af68fd3fb5dc5fed02b48acadd - ssdeep:
3072:SF4+gvBc5E5zkPBir+miUoUEYRTB6ZYi:SF4+gvBcgkPNFUnnFBsY - TLSH:
T1DE3EB60ADA1AAF8BE072C6010499271E417FF4B1725F318D235A9CEFABE55A77034079 - Submitted as: 023fa526723302d74766a06bc598f93cd043bfd2e12a283dbdf5666e4a8a79c9
- File type: pe · Size: 147456 bytes
- Verdict: malicious (100/100) · Family: VBObfus
Detections (4 of 25 engines)
- Microsoft Defender: Worm:Win32/Vobfus.CS
- Emsisoft (Emergency Kit): Gen:Heur.Conjar.1
- Trellix Stinger (McAfee): VBObfus.g
- Kaspersky (KVRT): Worm.Win32.Vobfus.ersn
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 10 weighted signals:
- Dropped a malicious payload (Vobfus): 0393e045f32b12437f214f297457c7ed4d7886584036f78f3ceb631815443600 - dynamic signal, weight 0.80, confidence 0.90
- Memory forensics: 4 finding(s), e.g. RWX/private injected region in svchost.exe (pid 924) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Microsoft Defender flagged Worm:Win32/Vobfus.CS (rule
Worm:Win32/Vobfus.CS) - engine signal, weight 0.55, confidence 0.85 - Emsisoft (Emergency Kit) flagged Gen:Heur.Conjar.1 (rule
Gen:Heur.Conjar.1) - engine signal, weight 0.55, confidence 0.85 - Trellix Stinger (McAfee) flagged VBObfus.g (rule
VBObfus.g) - engine signal, weight 0.55, confidence 0.85 - 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 32 external host(s) at runtime (13 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
38438 behavior events · 2 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- inference.location.live.net
- ns1.player1532.com
- ctldl.windowsupdate.com
- login.live.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- www.msn.com
- settings-win.data.microsoft.com
- officeclient.microsoft.com
- odc.officeapps.live.com
- licensing.mp.microsoft.com
- assets.msn.com
- www.bing.com
- tas02.sls.update.microsoft.com
- fe3cr.delivery.mp.microsoft.com
- v10.events.data.microsoft.com
- slscr.update.microsoft.com
Dropped files
- /opt/CAPEv2/storage/analyses/8600/files/0393e045f32b12437f214f297457c7ed4d7886584036f78f3ceb631815443600 -
0393e045f32b12437f214f297457c7ed4d7886584036f78f3ceb631815443600 - 80b0fcb283ac256156f6623ea9f9fe379b9bb4be04309df9e3171abf3a6f79cb -
80b0fcb283ac256156f6623ea9f9fe379b9bb4be04309df9e3171abf3a6f79cb - 738ad23022d357bbb5dbaa74e90a1ffff6b5045d8771ba47f93ed0d5fe04b17b -
738ad23022d357bbb5dbaa74e90a1ffff6b5045d8771ba47f93ed0d5fe04b17b
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://203.26.79.13/filestreamingservice//files/736bdc20-582e-46c5-ba31-d31d3d97258e/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/736bdc20-582e-46c5-ba31-d31d3d97258e?P1=1786349163&P2=404&P3=2&P4=kRdIKFv%2fPFNCN2PERHrsCv0TVvTzy2ABpXhG4i5SNfW55ODEhh7sjuYxkYxELJOsACeEq%2fbt5NHqK48wMldMiw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c48ae315-f580-4b6c-801e-58a0f885749d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c48ae315-f580-4b6c-801e-58a0f885749d?P1=1786349223&P2=404&P3=2&P4=BR6UqpMWSXj54uEdWZeNgsuuAszrhz58uf9%2fJiupA7QEbHleOzM%2bYUuyD66FfIx9KaUxIJL%2fHKjNMKEYOWe3wg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- ns1.player1532.com
Embedded IP addresses
- 20.42.72.131
- 40.84.97.4
- 4.230.171.124
- 52.230.60.54
- 40.79.167.10
- 74.178.76.128
- 135.233.95.135
- 13.89.179.12
- 172.178.240.161
- 203.26.79.13
- 74.178.232.29
- 172.178.240.162
- 20.50.201.205
- 4.150.223.96
- 72.145.35.104
- 52.148.114.188
- 92.223.78.30
- 52.110.12.14
- 52.110.12.45
File paths
- C:\Program
More VBObfus samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report