Analysis
- max time kernel
66s - max time network
147s - platform
windows10_x64 - resource
win10 - submitted
24/06/2020, 15:05
Static task
static1
Behavioral task
behavioral1
Sample
Bank Statement_pdf.exe
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Bank Statement_pdf.exe
Resource
win10
0 signatures
0 seconds
General
- Target Bank Statement_pdf.exe
- Size 690KB
- Sample200624-498efslc12
- SHA256 ad5d194018074784d3a8ac9aa334d5b0b4c8ec9fe721ba7870ef054e29d4529d
- MD5 253ec1e59c12626e20cf272bb0bdcf7b
- SHA1 b9a820bda10976fc46fcfb67d634194b85a16d76
- SHA512 8b3c71b95eab8a6a59128c294b42f1ef54fdefc67a49187f98aeaa501823d8b3fcfeef51e0428be82e62f0febb70aebe87f2f02c64fb18aba3ce676d974d3237
- MD5 SHA1 SHA512
Malware Config
Extracted
Credentials
-
Protocol
smtp
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Host
us2.smtp.mailhostbox.com
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Port
587
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Username
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Password
jiucUVn4
Signatures
- Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2928 Bank Statement_pdf.exe 2928 Bank Statement_pdf.exe 3720 Bank Statement_pdf.exe 3720 Bank Statement_pdf.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2928 set thread context of 3720 2928 Bank Statement_pdf.exe 67 - UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
resource yara_rule behavioral2/memory/3720-0-0x0000000000400000-0x00000000004B1000-memory.dmp upx behavioral2/memory/3720-2-0x0000000000400000-0x00000000004B1000-memory.dmp upx behavioral2/memory/3720-3-0x0000000000400000-0x00000000004B1000-memory.dmp upx - AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2928 wrote to memory of 3720 2928 Bank Statement_pdf.exe 67 PID 2928 wrote to memory of 3720 2928 Bank Statement_pdf.exe 67 PID 2928 wrote to memory of 3720 2928 Bank Statement_pdf.exe 67 PID 3720 wrote to memory of 3976 3720 Bank Statement_pdf.exe 69 PID 3720 wrote to memory of 3976 3720 Bank Statement_pdf.exe 69 PID 3720 wrote to memory of 3976 3720 Bank Statement_pdf.exe 69 - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2928 Bank Statement_pdf.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3720 Bank Statement_pdf.exe - Adds Run entry to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\soja = "C:\\Users\\Admin\\AppData\\Local\\Temp\\soja\\soja.exe" Bank Statement_pdf.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
Processes
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C:\Users\Admin\AppData\Local\Temp\Bank Statement_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Bank Statement_pdf.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
PID:2928 -
C:\Users\Admin\AppData\Local\Temp\Bank Statement_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Bank Statement_pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to start application
PID:3720 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:3976
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