Analysis
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max time kernel
121s -
max time network
128s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
19-10-2021 11:43
Static task
static1
Behavioral task
behavioral1
Sample
vaccination-certificate.pdf.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
vaccination-certificate.pdf.exe
Resource
win10-en-20211014
General
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Target
vaccination-certificate.pdf.exe
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Size
308KB
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MD5
6573f8a43ed03a44c90ae4b2f24731b1
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SHA1
4a91bbb558f5e91644e2d1cf97102a8ddba7646f
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SHA256
f18a287530626a1d2ce3d73394f16cd7d5e2b8cf261c21e8c53bae9c48a5b610
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SHA512
ea364baa2b9acace5766564538b5fa212411eb38055292b83b38d806e07390d6eec0393f0a5ef3be4f9c5086a9928804ccb8eb4585270eb1a32c3848de522fb2
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.dipiluminacion.com - Port:
587 - Username:
[email protected] - Password:
icui4cu2@@
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1728-56-0x000000000040188B-mapping.dmp family_agenttesla behavioral1/memory/1728-55-0x0000000000400000-0x000000000044B000-memory.dmp family_agenttesla behavioral1/memory/1728-58-0x0000000000490000-0x00000000004C6000-memory.dmp family_agenttesla behavioral1/memory/1728-60-0x0000000000400000-0x000000000044B000-memory.dmp family_agenttesla -
Loads dropped DLL 1 IoCs
Processes:
vaccination-certificate.pdf.exepid process 1768 vaccination-certificate.pdf.exe -
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:
vaccination-certificate.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vaccination-certificate.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vaccination-certificate.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vaccination-certificate.pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
vaccination-certificate.pdf.exedescription pid process target process PID 1768 set thread context of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
vaccination-certificate.pdf.exepid process 1728 vaccination-certificate.pdf.exe 1728 vaccination-certificate.pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
vaccination-certificate.pdf.exedescription pid process Token: SeDebugPrivilege 1728 vaccination-certificate.pdf.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
vaccination-certificate.pdf.exedescription pid process target process PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe PID 1768 wrote to memory of 1728 1768 vaccination-certificate.pdf.exe vaccination-certificate.pdf.exe -
outlook_office_path 1 IoCs
Processes:
vaccination-certificate.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vaccination-certificate.pdf.exe -
outlook_win_path 1 IoCs
Processes:
vaccination-certificate.pdf.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 vaccination-certificate.pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\vaccination-certificate.pdf.exe"C:\Users\Admin\AppData\Local\Temp\vaccination-certificate.pdf.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1768 -
C:\Users\Admin\AppData\Local\Temp\vaccination-certificate.pdf.exe"C:\Users\Admin\AppData\Local\Temp\vaccination-certificate.pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1728
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
8808b53b862e4e24374a449f03b971c0
SHA126da682c2feeab114ae5dc2bfe0abaa6c068a6e4
SHA2566ad4ced0975e95f8165a13eac1ff3b55ec9f115854ca66a023a7d1c9e31e62bd
SHA5127eb5af70e87398c1310b9c5c807d2de13f4b4917701a98070f00a4120e5fd45f0a3e196a14670ba1e45c6529d7ce5443e7dede888f24511d283949b0a44cef03