MALICIOUS — 75c4153b0b885146ef3cbfcd92293efa7b7b9cf58338663e4018c08cb0bd1282

MALICIOUS — 75c4153b0b885146ef3cbfcd92293efa7b7b9cf58338663e4018c08cb0bd1282 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the APosT family. 4 of 55 detection engines flagged it, exhibiting 8 ATT&CK techniques.

Identification

SHA-256: 75c4153b0b885146ef3cbfcd92293efa7b7b9cf58338663e4018c08cb0bd1282
SHA-1: 944974a9687020658f653519d6c6b2899508ab77
MD5: 1a1c74c2bf257e824960a3ef00888966
imphash: 091c3348d1b292de4a2b1d61233c541c
ssdeep: 384:E3R/o+iaNskBi2vbF6Z9UwvEM61qmUTMQF9bOM0:X+i0sei2DK95vV8qXord
TLSH: T17A2C19D81338B109C9B4D183688CCDCD60A76F31F16E1B4AC519E62827FB9375D72A68
Submitted as: 75c4153b0b885146ef3cbfcd92293efa7b7b9cf58338663e4018c08cb0bd1282
File type: pe · Size: 24576 bytes
Verdict: malicious (100/100) · Family: APosT

Detections (4 of 55 engines)

ClamAV (daily): Win.Downloader.Jqxm-9876004-0
Microsoft Defender: Trojan:Win32/Zbot.DF!MTB
Emsisoft (Emergency Kit): Trojan.Cud.Gen.1
Kaspersky (KVRT): Trojan.Win32.APosT.cwc

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 10 weighted signals:

ClamAV (daily) flagged Win.Downloader.Jqxm-9876004-0 (rule Win.Downloader.Jqxm-9876004-0) - engine signal, weight 0.90, confidence 0.95
3 behavioral detection(s): Registry Run Key Persistence [high] (rule tl-run-key) - 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: Registry Run Key Persistence (T1547.001) (rule Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
Contacted 27 external host(s) at runtime (21 HTTP) - network signal, weight 0.40, confidence 0.80
Anti-analysis: 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
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)

8490 behavior events · 3 ATT&CK techniques · 2 dropped files.

Dropped files

C:\Program Files\Common Files\Microsoft Shared\Web Folders\1033\spoolsv.exe - f40a78a5e7ca32071b9544aaa7613a0da2f090ff13d752452b6e0462e3cedb40
C:\Windows\Temp\flash.log - cbb18ffbafc609f03e91b28f313e76c0b2133401d2dbb2b5e2ffdb8f14a6dd08

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/9a8a705c-852d-4d18-b32a-ee1d872f4bd9/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/9a8a705c-852d-4d18-b32a-ee1d872f4bd9?P1=1787938568&P2=404&P3=2&P4=C9q8ewEebrixx%2fhbhHWLpY1Hk1WUprlE1xTcRvT6utRxg%2f%2bRyOJlzbTM6xPvy7559UcYrhk5YW8m%2fYPZp%2ff1dQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice//files/51d86688-616b-47e3-abeb-3df16a1583c5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/51d86688-616b-47e3-abeb-3df16a1583c5?P1=1787938663&P2=404&P3=2&P4=lXUxu%2fHL5jlY2VY4kcpWXhjFQ1uRJQiTRPAlU%2bazDEooj0ouEBIbihM2EcI8ICn%2bkZTa5sdAyivsWQCQmw7yOA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded domains

www.k-twc.gr.jp

Embedded IP addresses

20.89.1.12
52.253.84.76
4.230.171.124
85.210.193.152
57.155.101.212
74.178.76.128
52.168.117.169
74.178.76.54
20.236.44.162
52.123.129.14
52.123.128.14
40.99.134.18
20.42.65.93
135.233.45.221
203.26.79.13
52.110.12.37
52.110.12.38
52.148.114.188
172.178.240.161
52.123.252.194
135.232.92.34
72.153.5.97
172.215.188.232
13.89.179.12
4.207.44.75

File paths

c:\windows\system32\Macromed\Flash\FlashInstall.log

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report