Analysis
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max time kernel
142s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
04-12-2023 17:20
Static task
static1
Behavioral task
behavioral1
Sample
HalkbankEkstre0230622073809405251pdf.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
HalkbankEkstre0230622073809405251pdf.exe
Resource
win10v2004-20231127-en
General
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Target
HalkbankEkstre0230622073809405251pdf.exe
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Size
682KB
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MD5
28e84214d01c73f8ea58167ee4e15245
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SHA1
7e35fac510a67e18a382807ed3582488c1aa2a5c
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SHA256
f7d7dc0b75fcd11b825c2447278e540332c1a0a927a4559ae9494828fe0d1a88
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SHA512
51d151c52ccd481608023a467bf0226a5b290913307d76724025aa0edfaaae0b2f7a17350d8942a8180bfe90466e11f2ce5bcefd377e4aaa52b4cd3ab1dfde33
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SSDEEP
12288:TA45+po2KJTXRubQYBBMiB09ApT6M58iSoezgJcDlrLVPjnbwR7KouL8mRfJuO:Tj+pJKdRub9NiuOM58iq8cDlrJbERP+b
Malware Config
Extracted
Protocol: smtp- Host:
mail.rolexlogisticsservice.com - Port:
587 - Username:
[email protected] - Password:
2u]jWuxLcbdA
Extracted
agenttesla
Protocol: smtp- Host:
mail.rolexlogisticsservice.com - Port:
587 - Username:
[email protected] - Password:
2u]jWuxLcbdA - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 42 api.ipify.org 43 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
HalkbankEkstre0230622073809405251pdf.exedescription pid process target process PID 2212 set thread context of 2668 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
HalkbankEkstre0230622073809405251pdf.exeHalkbankEkstre0230622073809405251pdf.exepid process 2212 HalkbankEkstre0230622073809405251pdf.exe 2212 HalkbankEkstre0230622073809405251pdf.exe 2668 HalkbankEkstre0230622073809405251pdf.exe 2668 HalkbankEkstre0230622073809405251pdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
HalkbankEkstre0230622073809405251pdf.exeHalkbankEkstre0230622073809405251pdf.exedescription pid process Token: SeDebugPrivilege 2212 HalkbankEkstre0230622073809405251pdf.exe Token: SeDebugPrivilege 2668 HalkbankEkstre0230622073809405251pdf.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
HalkbankEkstre0230622073809405251pdf.exepid process 2668 HalkbankEkstre0230622073809405251pdf.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
HalkbankEkstre0230622073809405251pdf.exedescription pid process target process PID 2212 wrote to memory of 1664 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 1664 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 1664 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 2668 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 2668 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 2668 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 2668 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 2668 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 2668 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 2668 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe PID 2212 wrote to memory of 2668 2212 HalkbankEkstre0230622073809405251pdf.exe HalkbankEkstre0230622073809405251pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\HalkbankEkstre0230622073809405251pdf.exe"C:\Users\Admin\AppData\Local\Temp\HalkbankEkstre0230622073809405251pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2212 -
C:\Users\Admin\AppData\Local\Temp\HalkbankEkstre0230622073809405251pdf.exe"C:\Users\Admin\AppData\Local\Temp\HalkbankEkstre0230622073809405251pdf.exe"2⤵PID:1664
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C:\Users\Admin\AppData\Local\Temp\HalkbankEkstre0230622073809405251pdf.exe"C:\Users\Admin\AppData\Local\Temp\HalkbankEkstre0230622073809405251pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2668
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\HalkbankEkstre0230622073809405251pdf.exe.log
Filesize2KB
MD593d52c1bc7c38d958583ebbd3dc09cd4
SHA14c5ee6f9c9ae190c9a0cccb91fa2257ddcb8b0d5
SHA2562905f3a06dd8907ddbcbe64389cffcc8a5273d1822e25f8bea385bdd01653c76
SHA512dfc55c3247d7734c5a531fb5a3de689e8bb823e82c14ad6cab16923d50d51e03e5e86165a7d65b3059a66b67968b611368b010a6d9f755916b01ef7b67c5228e