Analysis
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max time kernel
112s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
20-05-2022 23:22
Static task
static1
Behavioral task
behavioral1
Sample
TRAIL_OR.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
TRAIL_OR.exe
Resource
win10v2004-20220414-en
General
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Target
TRAIL_OR.exe
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Size
454KB
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MD5
40c8f1776c47303a528127337fd1c0fc
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SHA1
a8a8647ecb05233494caceca326bb8a7196e3166
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SHA256
a669a995b5d4c7db8aa1ab4c0455477d56b16877ed72d1652f7584f1799b1d0a
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SHA512
2d1149da45c7f87bf60ab2455f087a2561338c5c57795e67d920947b4aff5ac773e8aca3fadaf152de56721139ea279e27bec49532cc22700c1e9e7af449abd1
Malware Config
Extracted
Protocol: smtp- Host:
mail.arkinc.co.in - Port:
587 - Username:
[email protected] - Password:
delta@1234
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
TRAIL_OR.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation TRAIL_OR.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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:
TRAIL_OR.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 TRAIL_OR.exe Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 TRAIL_OR.exe Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 TRAIL_OR.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
TRAIL_OR.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Appnew = "C:\\Users\\Admin\\AppData\\Roaming\\Appnew\\Appnew.exe" TRAIL_OR.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 5 IoCs
Processes:
TRAIL_OR.exepid process 1052 TRAIL_OR.exe 1052 TRAIL_OR.exe 1052 TRAIL_OR.exe 1052 TRAIL_OR.exe 1052 TRAIL_OR.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
TRAIL_OR.exedescription pid process Token: SeDebugPrivilege 1052 TRAIL_OR.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
TRAIL_OR.exedescription pid process target process PID 1052 wrote to memory of 1484 1052 TRAIL_OR.exe schtasks.exe PID 1052 wrote to memory of 1484 1052 TRAIL_OR.exe schtasks.exe PID 1052 wrote to memory of 1484 1052 TRAIL_OR.exe schtasks.exe -
outlook_office_path 1 IoCs
Processes:
TRAIL_OR.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 TRAIL_OR.exe -
outlook_win_path 1 IoCs
Processes:
TRAIL_OR.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 TRAIL_OR.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\TRAIL_OR.exe"C:\Users\Admin\AppData\Local\Temp\TRAIL_OR.exe"1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ijrRuVtejIKKP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBAD4.tmp"2⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmpBAD4.tmpFilesize
1KB
MD57bc6d93fd2bda0b7f930823e1ff310e4
SHA16860ef5be6de7d240e67a381e0ec6f83879470c1
SHA25692df74e49c45de0e0347c9c692b5b68510c0c65d695bf979e7470429125299ee
SHA5124ae677a21b4af23ed498bd66c45243335e02f3235fbe6e6a895a1ae38bcddcda673a03d52de09b7dcc9c886cb4b15da43738dd851b0c4f1df12cec0a4bed134a
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memory/1052-130-0x0000000000160000-0x00000000001D6000-memory.dmpFilesize
472KB
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memory/1052-131-0x0000000005100000-0x00000000056A4000-memory.dmpFilesize
5.6MB
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memory/1052-132-0x0000000004BF0000-0x0000000004C82000-memory.dmpFilesize
584KB
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memory/1052-133-0x0000000004B90000-0x0000000004B9A000-memory.dmpFilesize
40KB
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memory/1052-134-0x00000000070C0000-0x000000000715C000-memory.dmpFilesize
624KB
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memory/1052-137-0x0000000006EE0000-0x0000000006F46000-memory.dmpFilesize
408KB
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memory/1052-138-0x00000000077B0000-0x0000000007800000-memory.dmpFilesize
320KB
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memory/1484-135-0x0000000000000000-mapping.dmp