MALICIOUS — virussign.com_28fdbce5d736af67eafb1e01bd4093e0.vir
MALICIOUS — virussign.com_28fdbce5d736af67eafb1e01bd4093e0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Dinwod family. 11 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
7911e6b48593378d6c9b4e2c7e573334b68eeeb2864e566111591c2d3bca5198 - SHA-1:
38fd39cbbd8de7043216dad3c51634887a29ec18 - MD5:
28fdbce5d736af67eafb1e01bd4093e0 - imphash:
46c7aa7020cb76df8d87fbfa7b84aca2 - ssdeep:
6144:T3cm4FmowdHoS1JdJEJ5JEJ/JEJ2JvJEJ2J/JEJ2J5JEJ2J7J2JEJ2J7JtJEJ2Jm:h4wFHoSMk - TLSH:
T188638373F4165ED9CB09B336844A64ED067339BB08ACE1844612E6467ED4FE339B660C - Submitted as: virussign.com_28fdbce5d736af67eafb1e01bd4093e0.vir
- File type: pe · Size: 4913492 bytes
- Verdict: malicious (100/100) · Family: Dinwod
Source: VirusSign · first seen 2026-08-17T00:00:00.000Z · SHA-256 verified
Detections (11 of 55 engines)
- YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
- capa (capabilities): capability:collection/keylog
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Dinwod-9828955-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
- Detect It Easy (packer/type): DIE:UPX
- Microsoft Defender: Backdoor:MSIL/Bladabindi!pz
- Emsisoft (Emergency Kit): Trojan.Agent.EZHO
- Trellix Stinger (McAfee): Trojan-FPCQ!EE2A74958E59
- Kaspersky (KVRT): Trojan-Dropper.Win32.Dinwod.acqn
MITRE ATT&CK
YARA
- Windows_Injection_Api_Combo
Why this verdict
The malicious score of 100/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Malware.Dinwod-9828955-0 (rule
Win.Malware.Dinwod-9828955-0) - engine signal, weight 0.90, confidence 0.95 - Process injection API combination (rule
Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90 - Dropped a malicious payload (Dinwod): lvvpd.exe - dynamic signal, weight 0.62, confidence 0.90
- capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 30 external host(s) at runtime (22 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - YARA: MalwareAnalyser community pack flagged TL_Shellcode_VirtualAlloc_Exec (rule
TL_Shellcode_VirtualAlloc_Exec) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:UPX (rule
DIE:UPX) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: UPX, high-entropy-sections:UPX1 - static signal, weight 0.25, confidence 0.55
- inject code into another process (rule
inject code into another process) - capa signal, weight 0.12, confidence 0.60
Dynamic analysis (windows)
545 behavior events · 0 ATT&CK techniques · 15 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:\lvvpd.exe -
6ceab9f53e013b09bae39327ba76798e5b3ed5a659dd521a07d3aec4dd659977 - C:\lpbnp.exe -
d6f9195e92a70aea4d0d8725337537b5fab6c6f8799e0652b7875ab5a8ab19d0 - C:\jphrhr.exe -
1e04620851ad39380b37c0c3429628c743592115fd1336abf53fb2980c64e6de - C:\bvplb.exe -
02cb625f10aeddcb68d30761fdc73c61e908e83e86372dd92e8d0ab19e343b6a - C:\djbrd.exe -
0ba940b01f1be8bb4f50fd608cf645bc544590585c4e1e9b2e01699f742eab22 - C:\lfddnb.exe -
d81e0f7f5baef793fbb963aa18031bd897c68e9d301f31712a565e5570fa190d - C:\nnfhr.exe -
ad146c17b3441bb7181a366a1270202aa5e3ca5073e3512e0dfb29f32e8134ff - C:\lrfhr.exe -
1152463eb56e9728fde12899179631e8965c004b2b85037017ac1416692423de - C:\hnxlt.exe -
89cae9547bb76970ed2dcf3846a782d77ede68bd66b0ab9f00ea0c430cfad63f - C:\fdjtj.exe -
dbed9c580f0ee0b53ef667a4f509fcee811595f49d82594f2b83359f182f46e6 - C:\vlbntdn.exe -
658f990a2447416e5e926fe499656661637dfbf7f0066c17e656061f0f46c046 - C:\pnfnd.exe -
7fcdf93cc4fdaf440b0a22e5c85b354d4a143788ce08d3f4b0d195bcdbb90b6d - C:\pxhrf.exe -
f0edf354c631b284a87e6a880b61be4cbd3f7f94bfc08e612bf1b47c071b3206 - C:\ljphhtx.exe -
d7b638c69e85ab4b8b67e42d0fdba7ad69388cf2f182f98ca74a12d3be7a4473 - 888d65efa33037e12eefd698850593db25e9b7ccd3d6300fed55d0653c47e64a -
888d65efa33037e12eefd698850593db25e9b7ccd3d6300fed55d0653c47e64a
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=1787644710&P2=404&P3=2&P4=i5f%2fjsr6FS1NTFtfxaTV46vX6uh9VwjpC7LeY5lGcaGUPJ5k%2bYXW8NJ1hv2YN705vtbY0vlygtUGyQlM%2fW2QTw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/45cd9142-6feb-4946-89e7-63e58fada30a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/45cd9142-6feb-4946-89e7-63e58fada30a?P1=1787644837&P2=404&P3=2&P4=DRaokt61a6we75odSC9DaoPZnvKn4bjMuP5NmfSzGKEZSahXTQMLvhxWRtSvYREwl6MpmeLusT2FY9limSOZxw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- oneclient.sfx.ms
Embedded IP addresses
- 199.71.214.87
- 20.42.65.85
- 52.123.252.213
- 172.215.188.225
- 4.230.171.124
- 52.253.84.76
- 135.232.92.137
- 135.232.92.97
- 4.150.223.99
- 20.231.239.246
- 52.123.128.14
- 40.99.133.210
- 52.123.129.14
- 40.104.4.2
- 135.234.160.245
- 203.26.79.13
- 52.148.114.188
- 20.165.94.46
- 72.153.5.129
- 52.110.12.24
- 52.110.12.54
- 40.84.85.40
- 92.223.78.30
- 20.42.179.204
- 4.150.223.100
More Dinwod samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report