MALICIOUS — 64214942d830e92fb33e8d6c70fbe1eef102636e7955dcb1d2ad6331d8b37e7b
MALICIOUS — 64214942d830e92fb33e8d6c70fbe1eef102636e7955dcb1d2ad6331d8b37e7b is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Bublik family. 4 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
64214942d830e92fb33e8d6c70fbe1eef102636e7955dcb1d2ad6331d8b37e7b - SHA-1:
fc8cc800a0e427452d514e9f6601fb2ada868cc0 - MD5:
9d259510872d9ac6ff54fcae9003857f - imphash:
e8a152262666487600bae63a404244a1 - ssdeep:
192:+RbZ9rSaoJ2+DBh5kIq5H8rzjR3OhkLOrYSf9sg6zMWbAghRGdbH4:MZcaoPBXkIq5ozV/EYSfyy1ghQdz4 - TLSH:
T1B831A2CE81781BA7C33708E61636ED4E619BB0E20AED36150D9DD03D90C28A3DD52E76 - Submitted as: 64214942d830e92fb33e8d6c70fbe1eef102636e7955dcb1d2ad6331d8b37e7b
- File type: pe · Size: 39976 bytes
- Verdict: malicious (99/100) · Family: Bublik
Detections (4 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Downloader.Upatre-10023862-0
- Microsoft Defender: TrojanDownloader:Win32/Small.ASM!MTB
- Kaspersky (KVRT): HEUR:Trojan.Win32.Bublik.pef
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Downloader.Upatre-10023862-0 (rule
Win.Downloader.Upatre-10023862-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 2 finding(s), e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.50, confidence 0.85 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 25 external host(s) at runtime (27 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - Packing/obfuscation: UPX - static signal, weight 0.25, confidence 0.55
- Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
11126 behavior events · 2 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
- sellmakers.com
- yr.c.lencr.org
- yr2.c.lencr.org
- freedataverification.com
- yr1.c.lencr.org
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\hromi.exe -
7d71622277e2858d7d1135f7bbb47c91213a4fe568848849583d7ea7250b78a2
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/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=1787895356&P2=404&P3=2&P4=MOfFKGSpXTZ5Pvy0CnK5qFMGBQReLvr0X5Yz1X%2fT%2fRZi57%2fNwUBmiryiuR0%2bn2eadhhjUzGUbb2ZZR5W9Hcm1Q%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://yr.c.lencr.org/
- http://yr2.c.lencr.org/110.crl
- http://yr1.c.lencr.org/84.crl
- 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=1787895478&P2=404&P3=2&P4=YfOakborhaL5OdCr1ZYmctE0mThjtbLUW91EMbQP9lapCsjA8tzjv9OLzHR2StptSX0eW0UYPb1BTmihjjxlxg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- freedataverification.com
- sellmakers.com
- x1.c.lencr.org
- yr.c.lencr.org
- yr2.c.lencr.org
- yr1.c.lencr.org
Embedded IP addresses
- 4.150.223.105
- 172.215.188.232
- 4.230.171.124
- 20.247.184.197
- 74.178.76.128
- 104.208.16.94
- 74.178.76.54
- 74.179.77.204
- 20.231.239.246
- 52.123.128.14
- 20.42.65.84
- 203.26.79.13
- 20.184.175.19
- 4.150.223.109
- 135.234.160.244
- 52.110.12.46
- 52.110.12.54
- 52.148.114.188
- 172.178.240.162
- 135.232.92.34
- 72.154.7.103
- 104.18.21.213
- 2.57.91.91
- 52.110.12.49
- 34.209.195.255
File paths
- y:\wildlist\131227\33992ee7788627b401f8fdcea2c61a39.exe
- C:\rsdov.exe
- c:\c68eb46a0bd2bf83b1d505cbd8754aec.exe
- C:\ybyngr.exe
- C:\ibsfov.exe
- C:\yxmhitsv.exe
- C:\rwdan.exe
- C:\34k072fY.exe
- C:\xNiU1rFI.exe
- C:\8uZyNj6H.exe
- C:\uvSC7Del.exe
- C:\LlSoZwXN.exe
- C:\d33faHLj.exe
- C:\73mYKaWf.exe
- C:\NGARwule.exe
- C:\twwtb5Yt.exe
- C:\Wi7IDyMT.exe
- C:\PtapgVH7.exe
- C:\UnktcQEM.exe
- C:\a7kfsZAn.exe
- C:\Cs_Jfaeq.exe
- C:\QyYmxwJs.exe
- C:\3ddYvwu6.exe
- C:\0gTR6SqF.exe
- C:\Nd94wSWs.exe
More Bublik samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report