Analysis
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max time kernel
126s -
max time network
100s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
22-10-2021 23:27
Static task
static1
Behavioral task
behavioral1
Sample
PURCHASE ORDER.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
PURCHASE ORDER.exe
Resource
win10-en-20211014
General
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Target
PURCHASE ORDER.exe
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Size
483KB
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MD5
6b2a61536797c25fadf61b9e118a9764
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SHA1
cef336921af96c09cfb04b2992ca43354c78ec9d
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SHA256
bcaa7a736371d8db89c5ae663c529635632e86d02273e430997a6373e8f8788e
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SHA512
2cc99c1372e6610aad7be337aee127316733f4ad5fb495bc79362aa8cb3fcb5f6cb644abe26afc2bead6653c92faa2b8683a9e9aa1d8358c11fbf34604ae862e
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.aldhiyafainteriors.com - Port:
587 - Username:
rahman@aldhiyafainteriors.com - Password:
dhiyafa@987
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/784-65-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/784-66-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/784-68-0x00000000004376CE-mapping.dmp family_agenttesla behavioral1/memory/784-67-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/784-69-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
PURCHASE ORDER.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts PURCHASE ORDER.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:
PURCHASE ORDER.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
PURCHASE ORDER.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\DnDcR = "C:\\Users\\Admin\\AppData\\Roaming\\DnDcR\\DnDcR.exe" PURCHASE ORDER.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PURCHASE ORDER.exedescription pid process target process PID 368 set thread context of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.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 2 IoCs
Processes:
PURCHASE ORDER.exepid process 784 PURCHASE ORDER.exe 784 PURCHASE ORDER.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
PURCHASE ORDER.exedescription pid process Token: SeDebugPrivilege 784 PURCHASE ORDER.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
PURCHASE ORDER.exedescription pid process target process PID 368 wrote to memory of 860 368 PURCHASE ORDER.exe schtasks.exe PID 368 wrote to memory of 860 368 PURCHASE ORDER.exe schtasks.exe PID 368 wrote to memory of 860 368 PURCHASE ORDER.exe schtasks.exe PID 368 wrote to memory of 860 368 PURCHASE ORDER.exe schtasks.exe PID 368 wrote to memory of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 368 wrote to memory of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 368 wrote to memory of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 368 wrote to memory of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 368 wrote to memory of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 368 wrote to memory of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 368 wrote to memory of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 368 wrote to memory of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.exe PID 368 wrote to memory of 784 368 PURCHASE ORDER.exe PURCHASE ORDER.exe -
outlook_office_path 1 IoCs
Processes:
PURCHASE ORDER.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER.exe -
outlook_win_path 1 IoCs
Processes:
PURCHASE ORDER.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PURCHASE ORDER.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tUVJHdWNSkqfw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB0C9.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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\tmpB0C9.tmpMD5
5b8f96fb29feb21d3221e9bc791cf798
SHA1da45e53765a5ddc71312332d25ec5cf4434e5d19
SHA2561f5f4f33490dfd02392b576ca2b93653309211aa3c87b8bf59877a61794f5ecf
SHA5122265f33b6a99b1a569c924fe3b0a316b6a1b1de257f27d20a67a60a3096b7ae7c76bc43a51d130093628dc0a411e98749d83f679b0b5554e77d6821c7fa4f19d
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memory/368-56-0x0000000074B41000-0x0000000074B43000-memory.dmpFilesize
8KB
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memory/368-57-0x0000000000330000-0x000000000033E000-memory.dmpFilesize
56KB
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memory/368-58-0x0000000004E10000-0x0000000004E11000-memory.dmpFilesize
4KB
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memory/368-59-0x0000000004E50000-0x0000000004EC9000-memory.dmpFilesize
484KB
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memory/368-60-0x0000000004300000-0x0000000004338000-memory.dmpFilesize
224KB
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memory/368-54-0x0000000000900000-0x0000000000901000-memory.dmpFilesize
4KB
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memory/784-63-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/784-64-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/784-65-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/784-66-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/784-68-0x00000000004376CE-mapping.dmp
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memory/784-67-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/784-69-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/784-71-0x0000000004AC0000-0x0000000004AC1000-memory.dmpFilesize
4KB
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memory/784-72-0x0000000004AC1000-0x0000000004AC2000-memory.dmpFilesize
4KB
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memory/860-61-0x0000000000000000-mapping.dmp