Analysis
-
max time kernel
143s -
max time network
146s -
platform
windows10_x64 -
resource
win10 -
submitted
08/07/2020, 05:10
Static task
static1
Behavioral task
behavioral1
Sample
kedy7234.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
kedy7234.exe
Resource
win10
General
-
Target
kedy7234.exe
-
Size
435KB
-
MD5
bbfba7ed8187bcf8841bd3f0f011f6e0
-
SHA1
a10c9c774133594aa1319a2a122f0ed9bee65f44
-
SHA256
faa14b162487c010a973901cb7a91e48c512b0193fd449be475f94c32b0ff212
-
SHA512
20c4f818c360efe6b3769a4fd2d24225b6877837465a7a7577d721ce1b2063103fdf5b71e0d75d236f10b7d01d774a86095b37d3d143bd6e037098e293294f61
Malware Config
Extracted
Protocol: smtp- Host:
mail.wolterfan.com - Port:
587 - Username:
[email protected] - Password:
@Mar123
Extracted
agenttesla
Protocol: smtp- Host:
mail.wolterfan.com - Port:
587 - Username:
[email protected] - Password:
@Mar123
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
AgentTesla Payload 3 IoCs
resource yara_rule behavioral2/memory/3928-1-0x00000000004AE0F0-mapping.dmp family_agenttesla behavioral2/memory/3928-3-0x0000000000400000-0x00000000004B0000-memory.dmp family_agenttesla behavioral2/memory/3928-4-0x00000000009F0000-0x0000000000A42000-memory.dmp family_agenttesla -
resource yara_rule behavioral2/memory/3928-0-0x0000000000400000-0x00000000004B0000-memory.dmp upx behavioral2/memory/3928-2-0x0000000000400000-0x00000000004B0000-memory.dmp upx behavioral2/memory/3928-3-0x0000000000400000-0x00000000004B0000-memory.dmp upx -
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.
-
Adds Run key 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\CFMBUF = "C:\\Users\\Admin\\AppData\\Roaming\\CFMBUF\\CFMBUF.exe" kedy7234.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3740 set thread context of 3928 3740 kedy7234.exe 67 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3740 kedy7234.exe 3740 kedy7234.exe 3928 kedy7234.exe 3928 kedy7234.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3740 kedy7234.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3928 kedy7234.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3740 wrote to memory of 3928 3740 kedy7234.exe 67 PID 3740 wrote to memory of 3928 3740 kedy7234.exe 67 PID 3740 wrote to memory of 3928 3740 kedy7234.exe 67 PID 3928 wrote to memory of 3832 3928 kedy7234.exe 69 PID 3928 wrote to memory of 3832 3928 kedy7234.exe 69 PID 3928 wrote to memory of 3832 3928 kedy7234.exe 69
Processes
-
C:\Users\Admin\AppData\Local\Temp\kedy7234.exe"C:\Users\Admin\AppData\Local\Temp\kedy7234.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3740 -
C:\Users\Admin\AppData\Local\Temp\kedy7234.exe"C:\Users\Admin\AppData\Local\Temp\kedy7234.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3928 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:3832
-
-