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Analysis
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max time kernel
95s -
max time network
33s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
09/07/2020, 12:17
Static task
static1
Behavioral task
behavioral1
Sample
ANNEX SALES CONTRACT DOC SIGNED.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
ANNEX SALES CONTRACT DOC SIGNED.exe
Resource
win10
General
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Target
ANNEX SALES CONTRACT DOC SIGNED.exe
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Size
581KB
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MD5
5292c2a557d193f22ba04f9f7a81e521
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SHA1
94425b344d5a6dde203d38948659659229df6119
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SHA256
a8c715b2f18e39ff613f8fdd17388a7b1e51044a4a147b52cb40072fdfc9b49a
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SHA512
732ad21febdd1844a37bd48935c25a3defb25fe7ab05f1519ca59dfdcf7f9e18a5d8671dc683131773b40e5056fbbc3c7cff7af45030146d76d71346d3614398
Malware Config
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.rebu.co.rw/ - Port:
21 - Username:
[email protected] - Password:
o^Z0CIU?^yL2
Protocol: ftp- Host:
ftp://ftp.rebu.co.rw/ - Port:
21 - Username:
[email protected] - Password:
o^Z0CIU?^yL2
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
resource yara_rule behavioral1/memory/1240-2-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1240-3-0x000000000044CF0E-mapping.dmp family_agenttesla behavioral1/memory/1240-4-0x0000000000400000-0x0000000000452000-memory.dmp family_agenttesla behavioral1/memory/1240-5-0x0000000000400000-0x0000000000452000-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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\IYLZX5 = "C:\\Users\\Admin\\AppData\\Roaming\\IYLZX5\\IYLZX5.exe" ANNEX SALES CONTRACT DOC SIGNED.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 888 set thread context of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 888 ANNEX SALES CONTRACT DOC SIGNED.exe 1240 ANNEX SALES CONTRACT DOC SIGNED.exe 1240 ANNEX SALES CONTRACT DOC SIGNED.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 888 ANNEX SALES CONTRACT DOC SIGNED.exe Token: SeDebugPrivilege 1240 ANNEX SALES CONTRACT DOC SIGNED.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1240 ANNEX SALES CONTRACT DOC SIGNED.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 888 wrote to memory of 1324 888 ANNEX SALES CONTRACT DOC SIGNED.exe 26 PID 888 wrote to memory of 1324 888 ANNEX SALES CONTRACT DOC SIGNED.exe 26 PID 888 wrote to memory of 1324 888 ANNEX SALES CONTRACT DOC SIGNED.exe 26 PID 888 wrote to memory of 1324 888 ANNEX SALES CONTRACT DOC SIGNED.exe 26 PID 888 wrote to memory of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 PID 888 wrote to memory of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 PID 888 wrote to memory of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 PID 888 wrote to memory of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 PID 888 wrote to memory of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 PID 888 wrote to memory of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 PID 888 wrote to memory of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 PID 888 wrote to memory of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 PID 888 wrote to memory of 1240 888 ANNEX SALES CONTRACT DOC SIGNED.exe 27 PID 1240 wrote to memory of 1608 1240 ANNEX SALES CONTRACT DOC SIGNED.exe 29 PID 1240 wrote to memory of 1608 1240 ANNEX SALES CONTRACT DOC SIGNED.exe 29 PID 1240 wrote to memory of 1608 1240 ANNEX SALES CONTRACT DOC SIGNED.exe 29 PID 1240 wrote to memory of 1608 1240 ANNEX SALES CONTRACT DOC SIGNED.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\ANNEX SALES CONTRACT DOC SIGNED.exe"C:\Users\Admin\AppData\Local\Temp\ANNEX SALES CONTRACT DOC SIGNED.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:888 -
C:\Users\Admin\AppData\Local\Temp\ANNEX SALES CONTRACT DOC SIGNED.exe"{path}"2⤵PID:1324
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C:\Users\Admin\AppData\Local\Temp\ANNEX SALES CONTRACT DOC SIGNED.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1240 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:1608
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