Analysis
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max time kernel
123s -
max time network
127s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
14-10-2021 05:27
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order_104387.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
Purchase Order_104387.exe
Resource
win10-en-20210920
General
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Target
Purchase Order_104387.exe
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Size
10.0MB
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MD5
74bd055b47476e3e151a937dcd4bd3dc
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SHA1
5704a5e3a967a004b30408ed86774cefe6e6de31
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SHA256
efaaf6c3c366861beab445a96d8d463d7e461506f86f153acd3e0ed0e635b2b7
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SHA512
981ce06d17ac108de7d7a997c2ca6697e9923968c3c20db81a2224093a5573bf0de48bd0d65db31f1481a22b73ca49ec2b6116acb19e7906f7780b60a5a6de44
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot2017480070:AAEhICR2Yy5NwasA-Cw1qaDJiUj6zxLU08M/sendDocument
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 3 IoCs
Processes:
resource yara_rule behavioral2/memory/948-121-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/948-122-0x000000000043773E-mapping.dmp family_agenttesla behavioral2/memory/948-127-0x00000000051E0000-0x00000000056DE000-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:
Purchase Order_104387.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order_104387.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order_104387.exe Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order_104387.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Purchase Order_104387.exedescription pid process target process PID 2388 set thread context of 948 2388 Purchase Order_104387.exe Purchase Order_104387.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Purchase Order_104387.exepid process 948 Purchase Order_104387.exe 948 Purchase Order_104387.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Purchase Order_104387.exePurchase Order_104387.exedescription pid process Token: SeDebugPrivilege 2388 Purchase Order_104387.exe Token: SeDebugPrivilege 948 Purchase Order_104387.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Purchase Order_104387.exedescription pid process target process PID 2388 wrote to memory of 948 2388 Purchase Order_104387.exe Purchase Order_104387.exe PID 2388 wrote to memory of 948 2388 Purchase Order_104387.exe Purchase Order_104387.exe PID 2388 wrote to memory of 948 2388 Purchase Order_104387.exe Purchase Order_104387.exe PID 2388 wrote to memory of 948 2388 Purchase Order_104387.exe Purchase Order_104387.exe PID 2388 wrote to memory of 948 2388 Purchase Order_104387.exe Purchase Order_104387.exe PID 2388 wrote to memory of 948 2388 Purchase Order_104387.exe Purchase Order_104387.exe PID 2388 wrote to memory of 948 2388 Purchase Order_104387.exe Purchase Order_104387.exe PID 2388 wrote to memory of 948 2388 Purchase Order_104387.exe Purchase Order_104387.exe -
outlook_office_path 1 IoCs
Processes:
Purchase Order_104387.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order_104387.exe -
outlook_win_path 1 IoCs
Processes:
Purchase Order_104387.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order_104387.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order_104387.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order_104387.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Purchase Order_104387.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order_104387.exe"2⤵
- 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
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Downloads
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memory/948-121-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/948-122-0x000000000043773E-mapping.dmp
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memory/948-126-0x0000000005360000-0x0000000005361000-memory.dmpFilesize
4KB
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memory/948-127-0x00000000051E0000-0x00000000056DE000-memory.dmpFilesize
5.0MB
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memory/948-128-0x0000000005650000-0x0000000005651000-memory.dmpFilesize
4KB
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memory/948-129-0x0000000005F40000-0x0000000005F41000-memory.dmpFilesize
4KB
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memory/2388-115-0x0000000001290000-0x0000000001291000-memory.dmpFilesize
4KB
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memory/2388-117-0x00000000053C0000-0x00000000053C1000-memory.dmpFilesize
4KB
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memory/2388-118-0x0000000004D60000-0x0000000004D61000-memory.dmpFilesize
4KB
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memory/2388-119-0x0000000004E00000-0x0000000004E01000-memory.dmpFilesize
4KB
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memory/2388-120-0x0000000004EB0000-0x0000000004EB1000-memory.dmpFilesize
4KB