Analysis
- max time kernel
114s - max time network
120s - platform
windows7_x64 - resource
win7 - submitted
08/07/2020, 06:33
Static task
static1
Behavioral task
behavioral1
Sample
InquiryPo 08 07 020_PDF.exe
Resource
win7
Behavioral task
behavioral2
Sample
InquiryPo 08 07 020_PDF.exe
Resource
win10
General
- Target InquiryPo 08 07 020_PDF.exe
- Size 874KB
- Sample200708-wl3a2dewze
- SHA256 033e072066199b1ad85444191f19a03d8b15ec628930b4e86d7b5fb5e0a0baae
- MD5 4f7a9ac854a2f793af939a85e0907a50
- SHA1 ec1fc7da2d96b18e09cb5fad0f65fdf344bcb901
- SHA512 8889dce81db6b401f1c20c202d41d0e926969f834a7892f2b73c217f19f591cd8bc993a4e069a2bad485cc6103638e36c3774701846b96140cc4da7adc748a8c
- MD5 SHA1 SHA512
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.mosaiclayouts.com
-
Port
587
-
Username
-
Password
UY$W4+]^+9;)7CF5
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/540-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/540-5-0x000000000044797E-mapping.dmp family_agenttesla behavioral1/memory/540-6-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/540-7-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1124 set thread context of 540 1124 InquiryPo 08 07 020_PDF.exe 26 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 912 schtasks.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 540 InquiryPo 08 07 020_PDF.exe 540 InquiryPo 08 07 020_PDF.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1124 InquiryPo 08 07 020_PDF.exe Token: SeDebugPrivilege 540 InquiryPo 08 07 020_PDF.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 540 InquiryPo 08 07 020_PDF.exe - Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1124 wrote to memory of 912 1124 InquiryPo 08 07 020_PDF.exe 24 PID 1124 wrote to memory of 912 1124 InquiryPo 08 07 020_PDF.exe 24 PID 1124 wrote to memory of 912 1124 InquiryPo 08 07 020_PDF.exe 24 PID 1124 wrote to memory of 912 1124 InquiryPo 08 07 020_PDF.exe 24 PID 1124 wrote to memory of 540 1124 InquiryPo 08 07 020_PDF.exe 26 PID 1124 wrote to memory of 540 1124 InquiryPo 08 07 020_PDF.exe 26 PID 1124 wrote to memory of 540 1124 InquiryPo 08 07 020_PDF.exe 26 PID 1124 wrote to memory of 540 1124 InquiryPo 08 07 020_PDF.exe 26 PID 1124 wrote to memory of 540 1124 InquiryPo 08 07 020_PDF.exe 26 PID 1124 wrote to memory of 540 1124 InquiryPo 08 07 020_PDF.exe 26 PID 1124 wrote to memory of 540 1124 InquiryPo 08 07 020_PDF.exe 26 PID 1124 wrote to memory of 540 1124 InquiryPo 08 07 020_PDF.exe 26 PID 1124 wrote to memory of 540 1124 InquiryPo 08 07 020_PDF.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\InquiryPo 08 07 020_PDF.exe"C:\Users\Admin\AppData\Local\Temp\InquiryPo 08 07 020_PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ueZzAScceWp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp845B.tmp"2⤵
- Creates scheduled task(s)
PID:912
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C:\Users\Admin\AppData\Local\Temp\InquiryPo 08 07 020_PDF.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:540
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