MALICIOUS — e853753abcbf8312e1326416c1faa79f0b0f98612f7c8f2e8a76795203f5817d
MALICIOUS — e853753abcbf8312e1326416c1faa79f0b0f98612f7c8f2e8a76795203f5817d is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Vobfus family. 6 of 55 detection engines flagged it, exhibiting 5 ATT&CK techniques.
Identification
- SHA-256:
e853753abcbf8312e1326416c1faa79f0b0f98612f7c8f2e8a76795203f5817d - SHA-1:
06239372e69a877d0777c9dc12391511b5534c63 - MD5:
8c8cf9c697e299cc83de94d361ebf7f6 - imphash:
423242181baceaa3cf7b9f98782513ba - ssdeep:
1536:c447lHuxbhKaSfm8UI+u2ZA94UjiJIRaCzZevP++7XVFfCRE/9jMhmqLBzmpG:RmlHuxbhdfZ5UWWa2ZeH++7XVItAG - TLSH:
T19D40F8DD4E99E5E2D997D2072F44278C118E980B3E275A7672DF590E22C21E720F831E - Submitted as: e853753abcbf8312e1326416c1faa79f0b0f98612f7c8f2e8a76795203f5817d
- File type: pe · Size: 172032 bytes
- Verdict: malicious (99/100) · Family: Vobfus
Detections (6 of 55 engines)
- capa (capabilities): capability:collection/keylog
- ClamAV (daily): Win.Worm.Vobfus-6877826-0
- Microsoft Defender: Worm:Win32/Vobfus.HR
- Emsisoft (Emergency Kit): Gen:Variant.Symmi.5562
- Trellix Stinger (McAfee): VBObfus.ek
- Kaspersky (KVRT): Worm.Win32.WBNA.ipa
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Win.Worm.Vobfus-6877826-0 (rule
Win.Worm.Vobfus-6877826-0) - engine signal, weight 0.90, confidence 0.95 - 1 behavioral detection(s): Registry Run Key Persistence [high] (rule
tl-run-key) - dynamic signal, weight 0.60, confidence 0.90 - Observed at runtime: Registry Run Key Persistence (T1547.001) (rule
Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 30 external host(s) at runtime (27 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1082, T1622, T1497.001 - dynamic signal, weight 0.40, confidence 0.75
- Dropped 1 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)
52252 behavior events · 3 ATT&CK techniques · 5 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ns1.chopsuwey.com
- ns1.chopsuwey.net
- ns1.chopsuwey.org
- ns1.chopsuwey.biz
- ns1.chopsuwey.info
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
Dropped files
- C:\Users\analyst\joanoi.exe -
f7143438e4d54965e7ff97d34bb843683000dc058b0a7c4e8a00dbeb0da2e041 - 6c0545e45943beac1b820d4d8fc6f1afe7a061c4689ddadb03a4d4d6ddf96be9 -
6c0545e45943beac1b820d4d8fc6f1afe7a061c4689ddadb03a4d4d6ddf96be9 - a1b23ad48b555b7a85defd317df2a356787d798ac69bbcd5eda2c427975d5cab -
a1b23ad48b555b7a85defd317df2a356787d798ac69bbcd5eda2c427975d5cab - 2b8a22d393c69d6152b89daf4d50e2472ac0db116c90ed8e34a226851aeacb2f -
2b8a22d393c69d6152b89daf4d50e2472ac0db116c90ed8e34a226851aeacb2f - f1985647c0841aba3fb726f4b027e41375932bf0f30f7ca7384eebd4d92b44c5 -
f1985647c0841aba3fb726f4b027e41375932bf0f30f7ca7384eebd4d92b44c5
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=1787843159&P2=404&P3=2&P4=kX8udwGBI6ZvpfC8UvP2lVRv3ZUkKDe5LLfu6TDL7Ru8PXK4cVUJeO1BRdnMnyoQgEfczMwuxGq1lJ2rYed8aw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787843222&P2=404&P3=2&P4=LoauIcSBDtcW0GvKFOalqkQRvIhwIcwjXO2BzFprUBEZZaeV4l8%2bWOR3pUiZApthRO8Z5zUMDwCgHnQHEPvTaw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5?P1=1787239886&P2=404&P3=2&P4=FOZzUL1Sh1rDzbCMLhn%2bslh36xdxxl%2fdrcGZe0G9LJlimnRMZEpo39OwcIMU7L7r0mQizZKwd8m5d%2bmWbgm%2bIg%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/b56480f9-8215-4de7-ba7e-8e690088d21d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/b56480f9-8215-4de7-ba7e-8e690088d21d?P1=1787239521&P2=404&P3=2&P4=WxMxnrf%2b9kQieqkEdJD2GALqiIIdnkxtcXctlfqhhQw5U5HUBxjowfQ%2fk%2fKErupIIMivEbHbdOfiSaZb5zwf2w%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- ns1.chopsuwey.com
- ns1.chopsuwey.net
- ns1.chopsuwey.org
- ns1.chopsuwey.biz
- ns1.chopsuwey.info
Embedded IP addresses
- 4.150.223.109
- 52.123.252.247
- 20.42.179.204
- 4.230.171.124
- 40.84.97.4
- 52.253.84.76
- 74.178.240.61
- 20.165.94.54
- 20.42.65.94
- 74.178.76.128
- 52.123.252.235
- 20.231.239.246
- 52.123.129.14
- 52.123.128.14
- 57.154.63.210
- 172.178.240.161
- 203.26.79.13
- 135.232.92.34
- 52.148.114.188
- 135.234.160.246
- 20.184.175.4
- 20.42.73.28
- 92.223.78.30
- 72.153.5.133
- 135.233.45.222
More Vobfus samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report