MALICIOUS — f4e5a58b9608fe93847ddf6983a880d45a84caca1dda5d4ecf33859d85a3c016
MALICIOUS — f4e5a58b9608fe93847ddf6983a880d45a84caca1dda5d4ecf33859d85a3c016 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Vobfus family. 4 of 55 detection engines flagged it, exhibiting 5 ATT&CK techniques.
Identification
- SHA-256:
f4e5a58b9608fe93847ddf6983a880d45a84caca1dda5d4ecf33859d85a3c016 - SHA-1:
09fb86af2ac654fc77e53ed804c0681c90012b3c - MD5:
11150dc9c7d6e1456070502043666825 - imphash:
8d07b6b486ec2177dda749e56f17a12d - ssdeep:
768:bQcBfFyvn+GCuTNtuju1qlFeiKa0z22vL8LHlxf2l/xMe07UGjJdk2fBWvXOme1B:0cBfFy2vyclFRp2pxOUGg1CTO0B - TLSH:
T1B73801570A99C424C0FAE49F488A3F7E198D574415BA00BC1E9A330F39D62F36661FAD - Submitted as: f4e5a58b9608fe93847ddf6983a880d45a84caca1dda5d4ecf33859d85a3c016
- File type: pe · Size: 81920 bytes
- Verdict: malicious (99/100) · Family: Vobfus
Detections (4 of 55 engines)
- ClamAV (daily): Win.Worm.Vobfus-7460240-0
- Microsoft Defender: Worm:Win32/Vobfus.AC
- Emsisoft (Emergency Kit): Gen:Trojan.Chinky.2
- Kaspersky (KVRT): Worm.Win32.VBNA.brwx
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-7460240-0 (rule
Win.Worm.Vobfus-7460240-0) - 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 - Contacted 20 external host(s) at runtime (21 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- enumerate processes (rule
enumerate processes) - capa signal, weight 0.20, 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)
51898 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
- ns4.thepicturehut.net
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- licensing.mp.microsoft.com
- oneocsp.microsoft.com
Dropped files
- C:\Users\analyst\lvqec.exe -
b3e1e0a4b886658ff513776f8c91ad9648a7f0ad7efc3f4e4d1954c1a35ceb25 - 987fef7e7f4bed233af32a14fa23f8b9f410f6c728706303b42fa0bde50f6e04 -
987fef7e7f4bed233af32a14fa23f8b9f410f6c728706303b42fa0bde50f6e04 - 69f684470923605913bd64d2ae0ae29b2ea8d1ae916a23f33979c0fc063e50bc -
69f684470923605913bd64d2ae0ae29b2ea8d1ae916a23f33979c0fc063e50bc - d52697f2086110d12816c8db93baad8ded59b3ae7c54c74d77677c6ba861ada4 -
d52697f2086110d12816c8db93baad8ded59b3ae7c54c74d77677c6ba861ada4
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=1787791855&P2=404&P3=2&P4=OLXeJcdP3g8On7oUmFRqTWUwiNzDqMa69T2IyBpUqhFvqWjU3Y2%2fCUQ18UM6I7sV6ay%2fpCYu%2b%2byNieFqGWXGZg%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=1787791934&P2=404&P3=2&P4=Cx3Eowl7nzZO5PAOypgmNXw%2fgTv9ef568%2fF%2fApzE%2bUvmmkveGzLN3%2bK8GDTL2yRtxsDdppf%2bMRVYXPhgfQ4b%2fw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- ns4.thepicturehut.net
Embedded IP addresses
- 4.150.223.115
- 20.247.184.197
- 4.247.188.233
- 4.230.171.124
- 74.179.77.204
- 74.179.77.164
- 20.42.65.94
- 74.178.240.61
- 40.104.4.2
- 20.231.239.246
- 52.123.128.14
- 52.123.129.14
- 203.26.79.13
- 135.234.160.244
- 74.179.71.159
- 52.148.114.188
- 135.234.160.247
- 72.153.5.61
- 52.110.12.2
- 52.110.12.56
More Vobfus samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report