Analysis
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max time kernel
139s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 12:18
Static task
static1
Behavioral task
behavioral1
Sample
invoice.pdf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
invoice.pdf.exe
Resource
win10v2004-20220414-en
General
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Target
invoice.pdf.exe
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Size
439KB
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MD5
8e8165e74a734ef4504df4fc4b014f8d
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SHA1
ce43b52541df7cdc3f4053d201517adb447005c9
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SHA256
f892f7e0b4bcfd9084ac791d72a87a95a16ca175a154faf0a2e24da5dd205bce
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SHA512
101124fe99affa3944d3fe225c1e3065548c2e0faff42dd58fcfbed295d91e41733a068e6a629aba91ad5c5258565cbd47f2f4544e10d8a418c7ae1edf5cb5f4
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
chinapeace@yandex.com - Password:
chibuikelightwork1
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1244-61-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1244-62-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1244-63-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1244-64-0x0000000000446B9E-mapping.dmp family_agenttesla behavioral1/memory/1244-66-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1244-68-0x0000000000400000-0x000000000044C000-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:
invoice.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 invoice.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 invoice.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 invoice.pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
invoice.pdf.exedescription pid process target process PID 1292 set thread context of 1244 1292 invoice.pdf.exe invoice.pdf.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
invoice.pdf.exepid process 1244 invoice.pdf.exe 1244 invoice.pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
invoice.pdf.exedescription pid process Token: SeDebugPrivilege 1244 invoice.pdf.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
invoice.pdf.exepid process 1244 invoice.pdf.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
invoice.pdf.exedescription pid process target process PID 1292 wrote to memory of 1244 1292 invoice.pdf.exe invoice.pdf.exe PID 1292 wrote to memory of 1244 1292 invoice.pdf.exe invoice.pdf.exe PID 1292 wrote to memory of 1244 1292 invoice.pdf.exe invoice.pdf.exe PID 1292 wrote to memory of 1244 1292 invoice.pdf.exe invoice.pdf.exe PID 1292 wrote to memory of 1244 1292 invoice.pdf.exe invoice.pdf.exe PID 1292 wrote to memory of 1244 1292 invoice.pdf.exe invoice.pdf.exe PID 1292 wrote to memory of 1244 1292 invoice.pdf.exe invoice.pdf.exe PID 1292 wrote to memory of 1244 1292 invoice.pdf.exe invoice.pdf.exe PID 1292 wrote to memory of 1244 1292 invoice.pdf.exe invoice.pdf.exe -
outlook_office_path 1 IoCs
Processes:
invoice.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 invoice.pdf.exe -
outlook_win_path 1 IoCs
Processes:
invoice.pdf.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 invoice.pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\invoice.pdf.exe"C:\Users\Admin\AppData\Local\Temp\invoice.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\invoice.pdf.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- 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/1244-64-0x0000000000446B9E-mapping.dmp
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memory/1244-58-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1244-59-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1244-61-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1244-62-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1244-63-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1244-66-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1244-68-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1244-69-0x0000000075501000-0x0000000075503000-memory.dmpFilesize
8KB
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memory/1292-55-0x0000000004250000-0x00000000042E0000-memory.dmpFilesize
576KB
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memory/1292-56-0x0000000000810000-0x0000000000818000-memory.dmpFilesize
32KB
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memory/1292-57-0x0000000000B40000-0x0000000000B94000-memory.dmpFilesize
336KB
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memory/1292-54-0x0000000000D90000-0x0000000000E04000-memory.dmpFilesize
464KB