Analysis
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max time kernel
127s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220414-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
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1672-61-0x0000000004DE0000-0x0000000004E2C000-memory.dmp family_agenttesla -
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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 TRAIL_OR.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 TRAIL_OR.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\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-1-5-21-1083475884-596052423-1669053738-1000\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 4 IoCs
Processes:
TRAIL_OR.exepid process 1672 TRAIL_OR.exe 1672 TRAIL_OR.exe 1672 TRAIL_OR.exe 1672 TRAIL_OR.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
TRAIL_OR.exedescription pid process Token: SeDebugPrivilege 1672 TRAIL_OR.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
TRAIL_OR.exedescription pid process target process PID 1672 wrote to memory of 1476 1672 TRAIL_OR.exe schtasks.exe PID 1672 wrote to memory of 1476 1672 TRAIL_OR.exe schtasks.exe PID 1672 wrote to memory of 1476 1672 TRAIL_OR.exe schtasks.exe PID 1672 wrote to memory of 1476 1672 TRAIL_OR.exe schtasks.exe -
outlook_office_path 1 IoCs
Processes:
TRAIL_OR.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\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⤵
- 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\tmpB240.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\tmpB240.tmpFilesize
1KB
MD52ecf585c69b49a13eccfff857d52d5e9
SHA1d472174ab58bfde4017acff7af31ef816ef5cf2e
SHA2564ca26126edad4683ec99e383bb8fad092da125e2b23caad8ee62214ec085ad6b
SHA5127bd6009a4c7fd00dfffca2ce53fc847c79a44a23524225e1382ef48fc74ca60a02aebc9dbaa09c003148dc51df97f7ee70f94f754e4276d7b46d96516739eaeb
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memory/1476-59-0x0000000000000000-mapping.dmp
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memory/1672-54-0x0000000001020000-0x0000000001096000-memory.dmpFilesize
472KB
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memory/1672-55-0x00000000753B1000-0x00000000753B3000-memory.dmpFilesize
8KB
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memory/1672-56-0x0000000000330000-0x0000000000340000-memory.dmpFilesize
64KB
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memory/1672-57-0x00000000005D0000-0x0000000000632000-memory.dmpFilesize
392KB
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memory/1672-58-0x0000000000E80000-0x0000000000ECC000-memory.dmpFilesize
304KB
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memory/1672-61-0x0000000004DE0000-0x0000000004E2C000-memory.dmpFilesize
304KB