MALICIOUS — 4ba458e551eb2d9e6ec8d44274994eb1b1851a5f17e99ef712103953b15eeb69
MALICIOUS — 4ba458e551eb2d9e6ec8d44274994eb1b1851a5f17e99ef712103953b15eeb69 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (95/100), attributed to the Cryprar family. 2 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
4ba458e551eb2d9e6ec8d44274994eb1b1851a5f17e99ef712103953b15eeb69 - SHA-1:
cad709b031f9267e933db933f0a5212ec08a80e5 - MD5:
9ef774300c97fc3f831637bbe5e9cf76 - imphash:
d289668dfc2163a8d7ebe8a066b87241 - ssdeep:
24576:4ny/f9u3U7q9wFl73HcuDNMv+RY3c78mzOJqS2adDEZ8mnlDY3I:BFX7S4lzzimY3+PqqS2e7mX - TLSH:
T1C25523AC9146E782DD73E71098909E5E91E2B8E960BE28DC93D3C0AD2BD250FF411527 - Submitted as: 4ba458e551eb2d9e6ec8d44274994eb1b1851a5f17e99ef712103953b15eeb69
- File type: pe · Size: 1282322 bytes
- Verdict: malicious (95/100) · Family: Cryprar
Detections (2 of 55 engines)
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Kaspersky (KVRT): HEUR:Trojan.Win32.Cryprar.gen
MITRE ATT&CK
Why this verdict
The malicious score of 95/100 is the fusion of 7 weighted signals:
- 1 behavioral detection(s): LOLBin: mshta executing remote/scripted payload [high] (rule
tl-lolbin-mshta) - dynamic signal, weight 0.60, confidence 0.90 - Memory forensics: 3 finding(s), e.g. process hidden from a listing (rule
windows.psxview.PsXView) - memory signal, weight 0.55, confidence 0.85 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 21 external host(s) at runtime (22 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497, T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
14420 behavior events · 2 ATT&CK techniques · 4 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
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Local\Microsoft\Windows\Explorer\thumbcache_256.db -
723ef109024a7d1b03e6335ee53d0140027b2224765fe5fed23d1b07906a03a6 - C:\Users\analyst\AppData\Local\Microsoft\Windows\Explorer\thumbcache_48.db -
d3c9d1ff7b54b653c6a1125cac49f52070338a2dd271817bba8853e99c0f33a9 - C:\Users\analyst\AppData\Local\Microsoft\Windows\Explorer\thumbcache_idx.db -
a87402eefbc4625ced6e89433215eabe5a39f33e29ad868da483d2e1860a9a93 - 8fd6aec3b5121c0074f7ca5e617bd8b6274e1991d77b3feb8fa3f04870b083d6 -
8fd6aec3b5121c0074f7ca5e617bd8b6274e1991d77b3feb8fa3f04870b083d6
Embedded URLs
- http://schemas.microsoft.com/SMI/2005/WindowsSettings
- 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/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787871667&P2=404&P3=2&P4=DXAhCfi3xWfn8VHgL2oULAA9wzEseRZCta06T6VYnam%2fFqcSBfB1yvWvWcHcsnCj6bsuXFuOz4SkYDpYXD%2bA8g%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=1787871751&P2=404&P3=2&P4=dHZuXgCaJBcriv8o3uxgLHuvCWKsp37IsBHiHVhXB50iHhxJv0s%2bMShm6DW9LtQ2J%2fVTs8g4Y6CBz1xPw9d41g%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- schemas.microsoft.com
Embedded IP addresses
- 4.150.223.99
- 20.247.184.142
- 57.155.101.212
- 4.230.171.124
- 74.179.77.204
- 74.179.77.164
- 20.42.72.131
- 40.99.133.226
- 20.231.239.246
- 52.123.129.14
- 52.123.128.14
- 203.26.79.13
- 172.178.240.162
- 135.232.92.34
- 52.148.114.188
- 135.233.45.222
- 20.42.73.30
- 72.154.7.98
- 20.42.179.192
- 52.110.12.25
- 52.110.12.45
File paths
- d:\Projects\WinRAR\SFX\build\sfxrar32\Release\sfxrar.pdb
More Cryprar samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report