MALICIOUS — virussign.com_e5e1581b02d49e8d97092f52099f4ac0.vir
MALICIOUS — virussign.com_e5e1581b02d49e8d97092f52099f4ac0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Krap family. 5 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
c6717315c261aac20a5ca5bcc9b9da35050176fec0f5cc229de21a24565638ae - SHA-1:
2a16c8f8b5d17e5601a49c8b7b1f891e43fcd9fe - MD5:
e5e1581b02d49e8d97092f52099f4ac0 - imphash:
3a2003ea545fe942681da9e7683ebb58 - ssdeep:
12288:CxIK9V14ImyHYt9IZkoENRHfXJQQU8X1v:CJEyYXIZ2XJQB8X1v - TLSH:
T1E949CFB522A012FEDA5C9D78784C520FB7A298203167580BC3F1169F4FAB4D737076A9 - Submitted as: virussign.com_e5e1581b02d49e8d97092f52099f4ac0.vir
- File type: pe · Size: 420284 bytes
- Verdict: malicious (99/100) · Family: Krap
Source: VirusSign · first seen 2026-08-17T00:00:00.000Z · SHA-256 verified
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 - Dropped a malicious payload (Mira): ProgramData .exe - dynamic signal, weight 0.62, confidence 0.90
- 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 - Contacted 22 external host(s) at runtime (22 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)
5962 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
- officeclient.microsoft.com
Dropped files
- C:\ProgramData .exe -
b6f1c7b84389f98e39786ed664262bfc8c6159e78b03311618aee987d3f03201 - C:\788.ini -
45846819ee1e67fadb3a4296086ba497186ef49d3d2ade9fdb58fdf4e9325a84 - C:\System Volume Information .exe -
aef0f9cd251a483fd3f7ceb03589bccf41c72a442c1c838fbe30deff87d1814e - C:\Windows .exe -
5c5f5c758a79d1d949307875a9fa24251d2fe8327b0f95a2dd0e8b01cc117e09 - C:\swapfile.sys .exe -
33d9bcc92ee07ddc5713886b73b7f5e1f86cd4fc2f08eac14e7195ed8ab3cb3b - C:\ThreatLens .exe -
1bdfc3014f303b7fc7e72944f7efb97b2bab2059e4f6f7c9233f90244be3e77e - C:\DumpStack.log.tmp .exe -
9be17d1cfc277833c69b5aa9a9a8a2fc5cc781bf15aff987eaf6a932fc8c52b7 - C:\Recovery .exe -
6dd27efe7fbbd2a6921cb1394e4420de3b517d592f38dd8dead6d382ac1ab7f9 - C:\Documents and Settings .exe -
f091b913ad56c142e3a2c1a3ec2970e48f0386dfb3692c65075f3aa0924f5051 - C:\uac.ps1 .exe -
1fce8d7eefcc269b2baf38dc80ab5cd0381749ca5ba6c5945e75d35772693221 - C:\Config.Msi .exe -
fe04b61408345ad8259fbfcbbd1f62d4cb2ed497b6f9458f5e485b89ef114a45 - C:\Users .exe -
3c08cd8a40b0f18e44431a139d839dd4236cf0f56979431b435826a02d385ef0 - C:\$WinREAgent .exe -
809d0536df1c3ee9f02c460c281fec1aeea751fc7e56da618be5af07faeac2d7 - C:\ProgramData\axrrwj.exe -
f7e2a0b2e100f4556b8149f21ae67cabf24e5c8dec13291cd41ef4fa493d58ca - C:\inetpub .exe -
5510222fa92aefd70168fd857d124427ea9d743bb6eaddad1b225b64fe65fc22
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=1787645464&P2=404&P3=2&P4=cXJGL%2f0t2SoCZAzUoQyZxKAxa%2bs7%2f1s1na3pWarzyIIF9FCJQaZJc7i8T7PaEk14Y%2f6Iica5jjssEK27jAwNLQ%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=1787645547&P2=404&P3=2&P4=NhYUrTZkGcw%2bn7wVm96poMNoWBQkLr1v0rIu3e%2bbhZVfwVjOvixCSM3i6xGPF10V0pcdcObGh6h3B5ZylbwPbg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 52.178.17.233
- 4.230.171.124
- 57.155.104.224
- 20.247.184.197
- 74.178.240.61
- 20.184.175.5
- 135.232.92.97
- 13.89.179.15
- 52.123.129.14
- 20.76.201.171
- 52.123.128.14
- 40.99.134.2
- 52.110.12.45
- 52.110.12.48
- 203.26.79.13
- 135.233.45.223
- 135.232.92.34
- 52.148.114.188
- 72.153.5.62
- 172.215.188.232
- 52.110.12.19
- 52.110.12.31
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report