MALICIOUS — virussign.com_8d50f09f03c453dcc2918bf34ccbeac0.vir
MALICIOUS — virussign.com_8d50f09f03c453dcc2918bf34ccbeac0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100), attributed to the BlackMoon family. 8 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
a1a1d4a4799bfc3ec45dc1f6078ea8b41da5e62e42ebc28a5c2daab4dfbeaaf1 - SHA-1:
a7cb7aa856db4121796b5d696ef2cb14c48eb25d - MD5:
8d50f09f03c453dcc2918bf34ccbeac0 - imphash:
9dacd5fc505421be83fd9ef325d44b59 - ssdeep:
1536:mAocdpeVoBDulhzHMb7xNAa04Mcg5IKvlNJiRXDKFjI+pZ3Y:0cdpeeBSHHMHLf9RyIEQ5KXZ3Y - TLSH:
T1D53A0A6796A7B489C93470AB3B4F7390B0007DF00653799625ACE29FBE671CB46834C6 - Submitted as: virussign.com_8d50f09f03c453dcc2918bf34ccbeac0.vir
- File type: pe · Size: 97917 bytes
- Verdict: malicious (96/100) · Family: BlackMoon
Source: VirusSign · first seen 2026-08-20T00:00:00.000Z · SHA-256 verified
Detections (8 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:.MPRESS1
- ClamAV (daily): Win.Trojan.BlackMoon-4255490-1
- YARA: Yara-Rules community: YR_Packer_ASPack_MPRESS
- Detect It Easy (packer/type): DIE:MPRESS
- Microsoft Defender: Trojan:Win32/Blackmoon!rfn
- Emsisoft (Emergency Kit): Trojan.GenericKD.81100896
- Trellix Stinger (McAfee): Trojan-FPCQ!BA60F51D4D97
- Kaspersky (KVRT): Trojan-Dropper.Win32.Dinwod.acqn
MITRE ATT&CK
Why this verdict
The malicious score of 96/100 is the fusion of 6 weighted signals:
- ClamAV (daily) flagged Win.Trojan.BlackMoon-4255490-1 (rule
Win.Trojan.BlackMoon-4255490-1) - engine signal, weight 0.90, confidence 0.95 - Contacted 25 external host(s) at runtime (26 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: Yara-Rules community flagged YR_Packer_ASPack_MPRESS (rule
YR_Packer_ASPack_MPRESS) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:MPRESS (rule
DIE:MPRESS) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: high-entropy-sections:.MPRESS1, MPRESS - static signal, weight 0.25, confidence 0.55
- Dropped 22 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Dynamic analysis (windows)
689 behavior events · 0 ATT&CK techniques · 22 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
- settings-win.data.microsoft.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\txldnhn.exe -
4099aa6aefabebb73d1ca1f1c588155f7738e1b9a6530275204147a929d2aae3 - C:\rpnbtv.exe -
67a5bb7692b230a1bd9cc7c1140b5a77f881253c622ebc0258f31ee183aeeb9c - C:\ptdtd.exe -
5f4baa31711317df65fb9ca150317e7d0b90801dbc85485e265a92ec20eb4afc - C:\htrjd.exe -
4b01368540ddb6e1c64161d10aa56c82eda02e6d0b65c188688af83f01f4af77 - C:\vhpvf.exe -
5d08c27c1adbd03248e1fcd8179338dd0a1a3798fad768cb79c16cbc17974e8d - C:\bbjlrvt.exe -
a83dbd462459da9374758ce63505684b00b83d111044834788046026960be44c - C:\bdtvfjj.exe -
f275c0ef5aa753dfea49028df9c0851a56d0cb7b58343aead1c01b03d112da55 - C:\brbplph.exe -
8d475de0bf4edc414d593757da6c88b399fb12639b04f918ec6d88e75e3a2454 - C:\vdfdn.exe -
e881020af89560349ca34a059fae7f4f62f2179693c3b715e68483f6e5c44dfb - C:\jpbxt.exe -
3609da6642ab44654d1b5406ce3752987ac8bbb409eb0eabb5ccdee67d9e1fe1 - C:\nllxlf.exe -
9d5723049ba6782e376f507811eaba7c84f9a5eebb4a6972d51eb23d73707e23 - C:\tppdflt.exe -
d272b65d28b207a10b4814456647ef1c8ed2218e43a1030cc6cc7e172461fc39 - C:\lxxldnv.exe -
2c043d063105fff9069bd6a6a4fb3c480092798a9ac16bc8e415a365ccb8bf6b - C:\fdffbn.exe -
cd3a609818428a0a0609b4cb5bd39c6b29a14c60a0b65c991ea20c543cd29fe1 - C:\lhpjd.exe -
6c5d8bd97873ebdca6c3ff1e4466a4b2868f048305a1e9245cf29f33278b5bf3
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=1787850997&P2=404&P3=2&P4=DfTBTysw8K%2fY5RIhlNigeVC48T9cBU42nPKPZ4uGViz8TRReijsIVG7%2f%2flWbPH3Ycc%2bmbsR2rT6Wlaw7ztg5AQ%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=1787851089&P2=404&P3=2&P4=PaE0RKvUWAAyIBUF3QB1cy2Kjuicw34XRFEDihdACHJw58qp7c5jc%2fGAagf6c4sXMAgK4PelvmDz8yqC5xWKNw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 20.42.179.192
- 20.42.65.88
- 52.123.252.223
- 4.230.171.124
- 20.42.179.204
- 20.247.184.197
- 74.178.240.61
- 52.182.141.63
- 135.232.92.97
- 52.168.112.66
- 52.123.252.246
- 20.76.201.171
- 40.99.134.2
- 52.123.129.14
- 135.233.45.223
- 52.110.12.14
- 52.110.12.11
- 203.26.79.13
- 52.148.114.188
- 135.232.92.34
- 52.182.143.212
- 51.11.192.49
- 72.145.35.110
- 52.110.12.32
- 52.110.12.33
More BlackMoon samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report