Analysis
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max time kernel
156s -
max time network
160s -
platform
windows10_x64 -
resource
win10-en-20211104 -
submitted
11-11-2021 16:32
Static task
static1
Behavioral task
behavioral1
Sample
SsSuaeML7312gbk.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
SsSuaeML7312gbk.exe
Resource
win10-en-20211104
General
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Target
SsSuaeML7312gbk.exe
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Size
683KB
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MD5
b228b9a2a36d06fd91d942e464ef16bd
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SHA1
8a974471c6336b046f08d17d8ba4c31d7d151b9c
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SHA256
108f33743a4ef5a5008a666449da79ba8505820db73e7e5098cb90c2cdd0ee66
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SHA512
cb14152f1284087fd4206a27eea79cc4d2f568f3fbc1e1962cf64d1e5b97a4c8d4cce1925fe910dea421f401e8d5c07cf0c632405ff2e26f72873662f9a3ad09
Malware Config
Extracted
matiex
https://api.telegram.org/bot1962824736:AAECUA300NkJ2NuTf0cKgva_k26j1y0NNHk/sendMessage?chat_id=457082756
Signatures
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Matiex Main Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/1056-139-0x0000000000400000-0x000000000048C000-memory.dmp family_matiex behavioral2/memory/1056-140-0x000000000046E0DE-mapping.dmp family_matiex behavioral2/memory/1056-158-0x00000000050D0000-0x00000000055CE000-memory.dmp family_matiex -
Drops startup file 1 IoCs
Processes:
SsSuaeML7312gbk.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\regeditt.url SsSuaeML7312gbk.exe -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
SsSuaeML7312gbk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SsSuaeML7312gbk.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SsSuaeML7312gbk.exe Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SsSuaeML7312gbk.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 25 checkip.dyndns.org 27 freegeoip.app 28 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
SsSuaeML7312gbk.exedescription pid process target process PID 3576 set thread context of 1056 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 11 IoCs
Processes:
SsSuaeML7312gbk.exepowershell.exepowershell.exeSsSuaeML7312gbk.exepid process 3576 SsSuaeML7312gbk.exe 3576 SsSuaeML7312gbk.exe 3576 SsSuaeML7312gbk.exe 3860 powershell.exe 2252 powershell.exe 3576 SsSuaeML7312gbk.exe 3860 powershell.exe 2252 powershell.exe 2252 powershell.exe 3860 powershell.exe 1056 SsSuaeML7312gbk.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
SsSuaeML7312gbk.exepowershell.exepowershell.exeSsSuaeML7312gbk.exedescription pid process Token: SeDebugPrivilege 3576 SsSuaeML7312gbk.exe Token: SeDebugPrivilege 2252 powershell.exe Token: SeDebugPrivilege 3860 powershell.exe Token: SeDebugPrivilege 1056 SsSuaeML7312gbk.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
SsSuaeML7312gbk.exedescription pid process target process PID 3576 wrote to memory of 2252 3576 SsSuaeML7312gbk.exe powershell.exe PID 3576 wrote to memory of 2252 3576 SsSuaeML7312gbk.exe powershell.exe PID 3576 wrote to memory of 2252 3576 SsSuaeML7312gbk.exe powershell.exe PID 3576 wrote to memory of 3860 3576 SsSuaeML7312gbk.exe powershell.exe PID 3576 wrote to memory of 3860 3576 SsSuaeML7312gbk.exe powershell.exe PID 3576 wrote to memory of 3860 3576 SsSuaeML7312gbk.exe powershell.exe PID 3576 wrote to memory of 3140 3576 SsSuaeML7312gbk.exe schtasks.exe PID 3576 wrote to memory of 3140 3576 SsSuaeML7312gbk.exe schtasks.exe PID 3576 wrote to memory of 3140 3576 SsSuaeML7312gbk.exe schtasks.exe PID 3576 wrote to memory of 708 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 708 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 708 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 1056 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 1056 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 1056 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 1056 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 1056 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 1056 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 1056 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe PID 3576 wrote to memory of 1056 3576 SsSuaeML7312gbk.exe SsSuaeML7312gbk.exe -
outlook_office_path 1 IoCs
Processes:
SsSuaeML7312gbk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SsSuaeML7312gbk.exe -
outlook_win_path 1 IoCs
Processes:
SsSuaeML7312gbk.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 SsSuaeML7312gbk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SsSuaeML7312gbk.exe"C:\Users\Admin\AppData\Local\Temp\SsSuaeML7312gbk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SsSuaeML7312gbk.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gEvJkZJcG.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gEvJkZJcG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp62EC.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SsSuaeML7312gbk.exe"C:\Users\Admin\AppData\Local\Temp\SsSuaeML7312gbk.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\SsSuaeML7312gbk.exe"C:\Users\Admin\AppData\Local\Temp\SsSuaeML7312gbk.exe"2⤵
- Drops startup file
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.logMD5
db01a2c1c7e70b2b038edf8ad5ad9826
SHA1540217c647a73bad8d8a79e3a0f3998b5abd199b
SHA256413da361d77055dae7007f82b58b366c8783aa72e0b8fbe41519b940c253b38d
SHA512c76ff57fcee5cdf9fdf3116d4e1dc0cf106867bf19ab474b763e242acf5dca9a7509cb837c35e130c3e056636b4e8a4e135512a978bcd3dd641e20f5bf76c3d6
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveMD5
61985477768362169d741be54e4fa4d7
SHA198047c3039d64a9d8ded68f9778b789334b82692
SHA25690dd33af500708d96feaa388920c70366c2b221fedcf287a712cd3346bb83190
SHA512643cdc0dc0067ffebc20c1c159b320b3e22c6e6cf894c534b029187eaa5b653eb62f9c2c57826536b63e3a063b9d953a325e3348d9187f173d1b4da25f67b9a4
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C:\Users\Admin\AppData\Local\Temp\tmp62EC.tmpMD5
a25063c6fd168ce48b4c8f0b2f31c4f0
SHA1e80e543fd045b8d667365d4f5f5d30126afb157c
SHA256a5d06f6b990a166a3fb4accdfb1709b92e9451008dd1ed60866f96cc96ef7ca4
SHA512f0f36e6c57c244fb23c6219295fc48d06ecd682cb2a875f9ef28fc66678a20e82ce338812f4c87a675e8dbe6200d98cb30a349489c62515205f668d57d82accb
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memory/1056-158-0x00000000050D0000-0x00000000055CE000-memory.dmpFilesize
5.0MB
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memory/1056-140-0x000000000046E0DE-mapping.dmp
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memory/1056-139-0x0000000000400000-0x000000000048C000-memory.dmpFilesize
560KB
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memory/2252-141-0x0000000006FC0000-0x0000000006FC1000-memory.dmpFilesize
4KB
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memory/2252-163-0x0000000008050000-0x0000000008051000-memory.dmpFilesize
4KB
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memory/2252-127-0x0000000000000000-mapping.dmp
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memory/2252-208-0x00000000046C3000-0x00000000046C4000-memory.dmpFilesize
4KB
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memory/2252-128-0x0000000000FC0000-0x0000000000FC1000-memory.dmpFilesize
4KB
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memory/2252-206-0x000000007E7B0000-0x000000007E7B1000-memory.dmpFilesize
4KB
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memory/2252-130-0x0000000000FC0000-0x0000000000FC1000-memory.dmpFilesize
4KB
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memory/2252-132-0x0000000004560000-0x0000000004561000-memory.dmpFilesize
4KB
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memory/2252-133-0x0000000007050000-0x0000000007051000-memory.dmpFilesize
4KB
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memory/2252-180-0x0000000009050000-0x0000000009083000-memory.dmpFilesize
204KB
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memory/2252-166-0x0000000000FC0000-0x0000000000FC1000-memory.dmpFilesize
4KB
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memory/2252-161-0x00000000080E0000-0x00000000080E1000-memory.dmpFilesize
4KB
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memory/2252-151-0x00000000046C0000-0x00000000046C1000-memory.dmpFilesize
4KB
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memory/2252-152-0x00000000046C2000-0x00000000046C3000-memory.dmpFilesize
4KB
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memory/3140-131-0x0000000000000000-mapping.dmp
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memory/3576-125-0x0000000006050000-0x0000000006051000-memory.dmpFilesize
4KB
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memory/3576-120-0x00000000057F0000-0x00000000057F1000-memory.dmpFilesize
4KB
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memory/3576-121-0x0000000005390000-0x0000000005391000-memory.dmpFilesize
4KB
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memory/3576-123-0x0000000005280000-0x0000000005281000-memory.dmpFilesize
4KB
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memory/3576-124-0x0000000005D20000-0x0000000005D27000-memory.dmpFilesize
28KB
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memory/3576-118-0x00000000009F0000-0x00000000009F1000-memory.dmpFilesize
4KB
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memory/3576-126-0x00000000060F0000-0x0000000006248000-memory.dmpFilesize
1.3MB
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memory/3576-122-0x00000000052F0000-0x00000000052F1000-memory.dmpFilesize
4KB
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memory/3860-154-0x0000000007930000-0x0000000007931000-memory.dmpFilesize
4KB
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memory/3860-159-0x0000000007710000-0x0000000007711000-memory.dmpFilesize
4KB
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memory/3860-157-0x0000000004522000-0x0000000004523000-memory.dmpFilesize
4KB
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memory/3860-135-0x0000000000F00000-0x0000000000F01000-memory.dmpFilesize
4KB
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memory/3860-165-0x0000000000F00000-0x0000000000F01000-memory.dmpFilesize
4KB
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memory/3860-134-0x0000000000F00000-0x0000000000F01000-memory.dmpFilesize
4KB
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memory/3860-205-0x000000007E8A0000-0x000000007E8A1000-memory.dmpFilesize
4KB
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memory/3860-156-0x0000000004520000-0x0000000004521000-memory.dmpFilesize
4KB
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memory/3860-207-0x0000000004523000-0x0000000004524000-memory.dmpFilesize
4KB
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memory/3860-129-0x0000000000000000-mapping.dmp
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memory/3860-148-0x00000000078C0000-0x00000000078C1000-memory.dmpFilesize
4KB
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memory/3860-144-0x00000000075E0000-0x00000000075E1000-memory.dmpFilesize
4KB