MALICIOUS — BRBHSPSUYS.exe
MALICIOUS — BRBHSPSUYS.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the PolyPatch family. 7 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
64c80bdb7212bfaaca715c3c0cf390962aa1a1f5ed2d700c8277ef69ed66ccc8 - SHA-1:
9fe0a4d72088c997f573706f3c44192191cc19e7 - MD5:
d1daa16f40b03cfd64cf06374994fc81 - imphash:
d028ed91d908ca3f4bdbbbb8a346d246 - ssdeep:
6144:Ldudrdud1dudrdudqdudrdud1dudrdud: - TLSH:
T1FB595C2705B19E9FFA06D3FB60809F0D6DF2A96898B711D42B97DC0A116CC93396D20D - Submitted as: BRBHSPSUYS.exe
- File type: pe · Size: 1835008 bytes
- Verdict: malicious (97/100) · Family: PolyPatch
Detections (7 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Trojan.Generic-9986843-0
- Detect It Easy (packer/type): DIE:UPX
- Microsoft Defender: Trojan:Win32/Zexa!pz
- Emsisoft (Emergency Kit): Trojan.Agent.EYLR
- Trellix Stinger (McAfee): PolyPatch-UPX
- Kaspersky (KVRT): Trojan.Win32.Agentb.kntn
MITRE ATT&CK
Why this verdict
The malicious score of 97/100 is the fusion of 5 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Generic-9986843-0 (rule
Win.Trojan.Generic-9986843-0) - engine signal, weight 0.90, confidence 0.95 - Dropped a malicious payload: MMWWOQEJZT.exe - dynamic signal, weight 0.62, confidence 0.90
- Contacted 22 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- Detect It Easy (packer/type) flagged DIE:UPX (rule
DIE:UPX) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: UPX - static signal, weight 0.25, confidence 0.55
Dynamic analysis (windows)
32 behavior events · 0 ATT&CK techniques · 1 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
- officeclient.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\MMWWOQEJZT.exe -
1a3e8d1a0ea421aebd41b2255d08b8bf7af0155a0a1f0dfa7eca41765d410384
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=1787659341&P2=404&P3=2&P4=jq%2fMn0ELNga9mb9s0amN47vGa5IyQ74I5dhnLFvFpH1ULgz9S3lQB4byoedxKvuQYIL1cAP9aNudhycgC87Kww%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 52.110.12.28
- 52.110.12.47
- 203.26.79.13
- 4.150.223.96
- 57.155.104.224
- 4.230.171.124
- 57.155.101.212
- 52.230.59.222
- 135.232.92.137
- 20.42.65.93
- 74.178.240.51
- 20.231.239.246
- 52.123.129.14
- 40.99.133.242
- 74.179.77.204
- 172.178.240.162
- 52.123.252.235
- 135.232.92.34
- 72.153.5.132
- 52.110.12.18
- 52.148.114.188
- 52.110.12.30
File paths
- C:\Users\
More PolyPatch samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report