Analysis
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max time kernel
53s -
max time network
51s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 03:40
Static task
static1
Behavioral task
behavioral1
Sample
0900009900pdf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
0900009900pdf.exe
Resource
win10v2004-20220414-en
General
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Target
0900009900pdf.exe
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Size
539KB
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MD5
ff69f59ae77ee39cafdb4e7efb4accd7
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SHA1
998f7ed69e24b27371151aeb3d953643c8566878
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SHA256
ed1aa53c89a6250abd5ec84f8458338150b89ba617d4ca9b8d1583658a2b44ef
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SHA512
a457ce644c81831d757c7737364a22291c7db2194f457ea92f9de6a9560e25d12e9164b94dbd8b4048b7ed65d122b55944ce6212fb1f12d1ccb5c00693487b27
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
chukwudi123
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/1932-59-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla behavioral1/memory/1932-60-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla behavioral1/memory/1932-61-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla behavioral1/memory/1932-62-0x0000000000449E3E-mapping.dmp family_agenttesla behavioral1/memory/1932-64-0x0000000000400000-0x000000000044E000-memory.dmp family_agenttesla behavioral1/memory/1932-66-0x0000000000400000-0x000000000044E000-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:
0900009900pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0900009900pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0900009900pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0900009900pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
0900009900pdf.exedescription pid process target process PID 632 set thread context of 1932 632 0900009900pdf.exe 0900009900pdf.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
0900009900pdf.exepid process 1932 0900009900pdf.exe 1932 0900009900pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
0900009900pdf.exedescription pid process Token: SeDebugPrivilege 1932 0900009900pdf.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
0900009900pdf.exedescription pid process target process PID 632 wrote to memory of 1932 632 0900009900pdf.exe 0900009900pdf.exe PID 632 wrote to memory of 1932 632 0900009900pdf.exe 0900009900pdf.exe PID 632 wrote to memory of 1932 632 0900009900pdf.exe 0900009900pdf.exe PID 632 wrote to memory of 1932 632 0900009900pdf.exe 0900009900pdf.exe PID 632 wrote to memory of 1932 632 0900009900pdf.exe 0900009900pdf.exe PID 632 wrote to memory of 1932 632 0900009900pdf.exe 0900009900pdf.exe PID 632 wrote to memory of 1932 632 0900009900pdf.exe 0900009900pdf.exe PID 632 wrote to memory of 1932 632 0900009900pdf.exe 0900009900pdf.exe PID 632 wrote to memory of 1932 632 0900009900pdf.exe 0900009900pdf.exe -
outlook_office_path 1 IoCs
Processes:
0900009900pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0900009900pdf.exe -
outlook_win_path 1 IoCs
Processes:
0900009900pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0900009900pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0900009900pdf.exe"C:\Users\Admin\AppData\Local\Temp\0900009900pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:632 -
C:\Users\Admin\AppData\Local\Temp\0900009900pdf.exe"C:\Users\Admin\AppData\Local\Temp\0900009900pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1932
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/632-54-0x0000000075391000-0x0000000075393000-memory.dmpFilesize
8KB
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memory/632-55-0x0000000074AD0000-0x000000007507B000-memory.dmpFilesize
5.7MB
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memory/1932-56-0x0000000000400000-0x000000000044E000-memory.dmpFilesize
312KB
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memory/1932-57-0x0000000000400000-0x000000000044E000-memory.dmpFilesize
312KB
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memory/1932-59-0x0000000000400000-0x000000000044E000-memory.dmpFilesize
312KB
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memory/1932-60-0x0000000000400000-0x000000000044E000-memory.dmpFilesize
312KB
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memory/1932-61-0x0000000000400000-0x000000000044E000-memory.dmpFilesize
312KB
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memory/1932-62-0x0000000000449E3E-mapping.dmp
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memory/1932-64-0x0000000000400000-0x000000000044E000-memory.dmpFilesize
312KB
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memory/1932-66-0x0000000000400000-0x000000000044E000-memory.dmpFilesize
312KB
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memory/1932-68-0x0000000074AD0000-0x000000007507B000-memory.dmpFilesize
5.7MB