Analysis
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max time kernel
95s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
21-05-2022 00:28
Static task
static1
Behavioral task
behavioral1
Sample
PO copy.pdf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
PO copy.pdf.exe
Resource
win10v2004-20220414-en
General
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Target
PO copy.pdf.exe
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Size
600KB
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MD5
3fe5438b138021910261a11d1ade22f2
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SHA1
d24100a23ab25530b24196718eccb0b17b80cc0a
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SHA256
86eb9ef9abcbd21df6bed4743efd0c879ba62127b73a0dc5194e0ee758038628
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SHA512
d31311738b33b6197795c889cc07793f02f0b501ec622c4948b7c9432fc14c41ff712bd7d81942ceca3f153e1184314cc3f8490eb9e37552af33781a522a9ff1
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
chibuikelightwork1
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - 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 1 IoCs
Processes:
resource yara_rule behavioral2/memory/4136-134-0x0000000000400000-0x000000000044C000-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:
PO copy.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO copy.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO copy.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO copy.pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO copy.pdf.exedescription pid process target process PID 4108 set thread context of 4136 4108 PO copy.pdf.exe PO copy.pdf.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
PO copy.pdf.exePO copy.pdf.exepid process 4108 PO copy.pdf.exe 4108 PO copy.pdf.exe 4108 PO copy.pdf.exe 4136 PO copy.pdf.exe 4136 PO copy.pdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PO copy.pdf.exePO copy.pdf.exedescription pid process Token: SeDebugPrivilege 4108 PO copy.pdf.exe Token: SeDebugPrivilege 4136 PO copy.pdf.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO copy.pdf.exepid process 4136 PO copy.pdf.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
PO copy.pdf.exedescription pid process target process PID 4108 wrote to memory of 4136 4108 PO copy.pdf.exe PO copy.pdf.exe PID 4108 wrote to memory of 4136 4108 PO copy.pdf.exe PO copy.pdf.exe PID 4108 wrote to memory of 4136 4108 PO copy.pdf.exe PO copy.pdf.exe PID 4108 wrote to memory of 4136 4108 PO copy.pdf.exe PO copy.pdf.exe PID 4108 wrote to memory of 4136 4108 PO copy.pdf.exe PO copy.pdf.exe PID 4108 wrote to memory of 4136 4108 PO copy.pdf.exe PO copy.pdf.exe PID 4108 wrote to memory of 4136 4108 PO copy.pdf.exe PO copy.pdf.exe PID 4108 wrote to memory of 4136 4108 PO copy.pdf.exe PO copy.pdf.exe -
outlook_office_path 1 IoCs
Processes:
PO copy.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO copy.pdf.exe -
outlook_win_path 1 IoCs
Processes:
PO copy.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO copy.pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO copy.pdf.exe"C:\Users\Admin\AppData\Local\Temp\PO copy.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4108 -
C:\Users\Admin\AppData\Local\Temp\PO copy.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
PID:4136
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
611B
MD5e09032fb626c6c1d10e2ab27b0278463
SHA1a26ea328ef81ab53a9883f7b9c7d3998883eaf47
SHA2561b834fc0faded24ae9665629c739742a2614784d62f96f9f982a6c678e916147
SHA5122c341b371103d67fb0bd1e49a4a07b3037e3a304b914446c103de43f87370d584e666f0b93e2c28c776188e975cd95855bb3a1bc4ddbcac89acd62ec46cb5e35