MALICIOUS — $WinREAgent .exe
MALICIOUS — $WinREAgent .exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Mira family. 5 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
1176ee53458406895c89dc52bc357b3eec4dfdb810ad41ae377ccd59b818f5ec - SHA-1:
93a0fd16504c5693f0952a3e5adea3d04bfdc9cf - MD5:
3c3c0c6a55a210d789c455a9f44d515a - imphash:
3a2003ea545fe942681da9e7683ebb58 - ssdeep:
6144:6BxIK3CTW8TMjp41u6nyHwnZOE6JumxJcOoUgAMEiLqfndJUxHdiV4/Vz:CxIK9V14ImyHYZSPyCfdJUxH24/9 - TLSH:
T1EF498D184165DC7CD6B5B2AF686147FEDAC64D23833EBB98CE23B89AC91507F5028431 - Submitted as: $WinREAgent .exe
- File type: pe · Size: 420288 bytes
- Verdict: malicious (99/100) · Family: Mira
Detections (5 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:.lol 1
- ClamAV (daily): Win.Packed.Mira-7330891-0
- Detect It Easy (packer/type): DIE:MinGW
- Microsoft Defender: Trojan:Win32/Krap!pz
- Kaspersky (KVRT): HEUR:Trojan.Win32.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 8 weighted signals:
- ClamAV (daily) flagged Win.Packed.Mira-7330891-0 (rule
Win.Packed.Mira-7330891-0) - 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 - Dropped a suspicious payload (Persistence): scoobe-fix.cmd - dynamic signal, weight 0.40, confidence 0.90
- Contacted 19 external host(s) at runtime (20 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001 - dynamic signal, weight 0.40, confidence 0.75
- Detect It Easy (packer/type) flagged DIE:MinGW (rule
DIE:MinGW) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: high-entropy-sections:.lol 1, MinGW - static signal, weight 0.25, confidence 0.55
Dynamic analysis (windows)
5739 behavior events · 1 ATT&CK techniques · 34 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
- 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
- settings-win.data.microsoft.com
Dropped files
- C:\p.ps1 .exe -
b5069bd5cf8178b56a02a6d9bd3727cdc0a4dad74bbf3d8a92fcddb3f3847749 - a026779fd714d771cd33602cc8c3a0a3d6d0ef043a5cf7e2fdadc1305735e391 -
a026779fd714d771cd33602cc8c3a0a3d6d0ef043a5cf7e2fdadc1305735e391 - C:\scoobe-fix.cmd .exe -
9c0d08dc28ed8e514469d295e7ba690d721ebf51d525c39c8ad876fed4672599 - C:\uac-done.txt .exe -
bd438169e83cc68c8944e4b6354ad959f884c235c5042c797ad3ec58b649ae0b - C:\Users .exe -
c999e1d28031f25c1f1c2277b59dc633bf0904bf59448935ac2178c32b6e6352 - C:\DumpStack.log.tmp .exe -
e4bd6db5b43e26bcf6fd25b6ae3dd5c044f6c995664353a857dfcc8f0945fde0 - C:\$WinREAgent .exe -
97a778e82cb767fdd23518dcc6da00b3c13c8dcd93eaac51eecb6167089334c6 - C:\Program Files (x86) .exe -
39b3c055e12d957355a5eac8e6732996ae24c65a9d174dfa73dd7de46fb43d18 - C:\ProgramData .exe -
1121057a99469af26ae3ee2f856fdf59a29599bd3bbd4fe1ec65129c5e66e204 - C:\ThreatLens .exe -
52e201261f8f22379a61f40723aca6d53b4c92384abd0f6790248ed80ad930f8 - C:\uac-done.txt -
ad38b76382f56940b22fc920702dbd4bff308a93bf3ad3b0b705686aa4245e9a - C:\Config.Msi .exe -
afba21d80d88c90a0925af22f3b861e076936d3446ff4cfa27b661bb9dc47fbb - C:\Recovery .exe -
1879ef76740282ed7738dc122e5fc1de4f356b958433ef8889a57ab7bc962d9d - C:\System Volume Information .exe -
e5ca07ef6d9617e5420cbe6f9e14a23d9a1beeaa832e618b49f243d31292d02b - C:\uac.ps1 -
a42e57db93b93ecb2224fdb1276f4ebb0b6705cc4a95ec1899772df8dc47a684
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=1787666341&P2=404&P3=2&P4=TIiBPiUDFH5B3RzFy%2f%2bziabagKPT81a2f%2bqHtwWQt3V8oYw0eQlElIwa8ANDZcnL3WRkf5Xl83EJF2oXekZJwQ%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=1787666383&P2=404&P3=2&P4=QzkE8TlSN99%2f2n9Sz8800pazGh%2f0BiApPk7SWVP8dFJXkeyaArvczcdd0F8EdANO%2fHboTbAD0qdS7%2f4o0pQn6Q%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 20.184.175.14
- 40.84.97.4
- 4.230.171.124
- 4.144.132.114
- 74.179.77.204
- 13.89.179.12
- 74.178.76.54
- 20.76.201.171
- 52.123.129.14
- 20.42.72.131
- 135.233.45.221
- 203.26.79.13
- 52.148.114.188
- 135.232.92.34
- 20.184.175.18
- 20.42.179.204
- 72.154.7.103
- 52.110.12.11
- 52.110.12.19
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report