MALICIOUS — b3e700d47fa1f7f099dfb438fac3e5a187b957f85a59c235d3d5620d5e4b61a0
MALICIOUS — b3e700d47fa1f7f099dfb438fac3e5a187b957f85a59c235d3d5620d5e4b61a0 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Vobfus family. 4 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
b3e700d47fa1f7f099dfb438fac3e5a187b957f85a59c235d3d5620d5e4b61a0 - SHA-1:
1fd83d75b557f06862c2664029baa9556975cadf - MD5:
7df0216a4b8f7cef92e1114dc8a0bd3d - imphash:
8262fdc48a399d7b8190a3af463a61f7 - ssdeep:
3072:gRBNSIcEGROnFRTgPmCXMNKiqMNMZZZZWMkIJuF:IgaTtEMNIMNHYy - TLSH:
T1DD401795FDEDE6B5D165D60789401D6C369EF79AFEAA573023BA490E00D23E3202432C - Submitted as: b3e700d47fa1f7f099dfb438fac3e5a187b957f85a59c235d3d5620d5e4b61a0
- File type: pe · Size: 180224 bytes
- Verdict: malicious (100/100) · Family: Vobfus
Detections (4 of 55 engines)
- ClamAV (daily): Win.Trojan.Vobfus-45
- Microsoft Defender: Worm:Win32/Vobfus.FI
- Trellix Stinger (McAfee): W32/Autorun.worm.ru
- Kaspersky (KVRT): Trojan.Win32.Vobfus.inz
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Vobfus-45 (rule
Win.Trojan.Vobfus-45) - 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 - Memory forensics: 2 finding(s), e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.50, confidence 0.85 - 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 - 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
- Embedded network infrastructure: http://vbnet.mvps.org/index.html, http://www.Planet-Source-Code.com/vb/, http://vb.mvps.org/ - static signal, weight 0.35, confidence 0.60
- 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)
45998 behavior events · 3 ATT&CK techniques · 4 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.musiczipz.com
- ns1.musicmixa.net
- ns1.musicmixa.org
- ns1.musicmixb.co
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
Dropped files
- C:\Users\analyst\xoiuru.exe -
3325f2b944de0717b34b50849decd92417d4942e0aa81176210c7c43d78e45db - dae5a627a346550f159e8033e23638db3af39fde5bc35f3f749d671b321c0927 -
dae5a627a346550f159e8033e23638db3af39fde5bc35f3f749d671b321c0927 - 9bdb01db49972e28f0b88910cec80eb34b8869d0e084cbec7b8a94506ce59aab -
9bdb01db49972e28f0b88910cec80eb34b8869d0e084cbec7b8a94506ce59aab - 7b9c727d973c08db199ead973003a3ee7c82c7a8dcc6c44e7b09b9a9f90387d7 -
7b9c727d973c08db199ead973003a3ee7c82c7a8dcc6c44e7b09b9a9f90387d7
Embedded URLs
- http://vbnet.mvps.org/index.html
- http://www.Planet-Source-Code.com/vb/
- http://vb.mvps.org/
- http://allapi.mentalis.org/apilist/apilist.php
- 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=1787807438&P2=404&P3=2&P4=nTgldNUvLLpBLXU4qDdUSooYr5E9%2fAUFl4McVqUUKxWI4bPzvs%2bfWgXnlDnJGUDJNShpjjT1xsEWeMWw2OVbsQ%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=1787807530&P2=404&P3=2&P4=Mz5NBRiCse11rtlca6A9jDWPEKrYa4ino2NXZRc1gTzG9KVNyCMFDU1RoP1aiRhHBjslSGbmDKMdxtk2EM8fVA%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/b56480f9-8215-4de7-ba7e-8e690088d21d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5?P1=1787204296&P2=404&P3=2&P4=RivfvhmFNzl%2bxquGlsgD7nmuxl%2bgC%2fYXz0sqS2RqOz%2fJNcvJ66trWpWXopTe6g%2fDT6nfX5WqYGWw7qeRRHjYlA%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/b56480f9-8215-4de7-ba7e-8e690088d21d?P1=1787203834&P2=404&P3=2&P4=dc0mSiorOu73TN8ww07GFiIc6HvpI4aqVAKy2yVZwgmD2YtaQvjD34gVxJ9kx2Fy1szQ7gAGiMuk2MF5adCfeQ%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- vbnet.mvps.org
- vb.mvps.org
- allapi.mentalis.org
- www.planet-source-code.com
- ns1.musiczipz.com
- ns1.musicmixa.net
- ns1.musicmixa.org
- ns1.musicmixb.co
Embedded IP addresses
- 51.116.246.106
- 52.123.252.232
- 52.230.59.222
- 20.42.179.192
- 74.178.76.128
- 20.89.1.10
- 74.178.240.51
- 4.230.171.124
- 20.236.44.162
- 52.123.129.14
- 52.123.128.14
- 162.159.142.9
- 203.26.79.13
- 172.178.240.162
- 52.123.252.242
- 135.232.92.34
- 20.184.175.11
- 135.233.45.223
- 52.110.12.20
- 52.148.114.188
- 52.110.12.8
- 125.56.205.123
- 125.56.205.17
- 72.153.5.132
- 52.123.252.223
File paths
- C:\Windows\system32\msvbvm60.dll\3
- C:\Program
More Vobfus samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report