Analysis
- max time kernel
90s - max time network
113s - platform
windows10_x64 - resource
win10v20210408 - submitted
25/07/2021, 16:42
Static task
static1
Behavioral task
behavioral1
Sample
f4ad2cb7d4d6b02b1debf1d41849b71e.exe
Resource
win7v20210410
0 signatures
0 seconds
General
- Target f4ad2cb7d4d6b02b1debf1d41849b71e.exe
- Size 492KB
- Sample210725-b5vqpsd982
- SHA256 bf53b4b404f09c51fc30b4e683f5258b8172e0698ec61837da1e88a9704b37e8
- MD5 f4ad2cb7d4d6b02b1debf1d41849b71e
- SHA1 4d6304391e16baa517f219ee644b4227fe2b2a65
- SHA512 8c6a4d10cd4884a769ce0fc12878acabb449b4955b8186efa09d3d6c7315eb2b96e2c1bc539cbc84015b5a811113f262e6496d375df16b56dc73753dc7df6914
- MD5 SHA1 SHA512
Malware Config
Signatures
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
pid Process 3312 i8GNlo5RB3.exe 3884 sqlcmd.exe - Loads dropped DLL 5 IoCs
pid Process 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe - 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.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3460 schtasks.exe 3564 schtasks.exe - Delays execution with timeout.exe 1 IoCs
pid Process 3220 timeout.exe - Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 604 wrote to memory of 3312 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 78 PID 604 wrote to memory of 3312 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 78 PID 604 wrote to memory of 3312 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 78 PID 604 wrote to memory of 1356 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 79 PID 604 wrote to memory of 1356 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 79 PID 604 wrote to memory of 1356 604 f4ad2cb7d4d6b02b1debf1d41849b71e.exe 79 PID 1356 wrote to memory of 3220 1356 cmd.exe 81 PID 1356 wrote to memory of 3220 1356 cmd.exe 81 PID 1356 wrote to memory of 3220 1356 cmd.exe 81 PID 3312 wrote to memory of 3460 3312 i8GNlo5RB3.exe 82 PID 3312 wrote to memory of 3460 3312 i8GNlo5RB3.exe 82 PID 3312 wrote to memory of 3460 3312 i8GNlo5RB3.exe 82 PID 3884 wrote to memory of 3564 3884 sqlcmd.exe 85 PID 3884 wrote to memory of 3564 3884 sqlcmd.exe 85 PID 3884 wrote to memory of 3564 3884 sqlcmd.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\f4ad2cb7d4d6b02b1debf1d41849b71e.exe"C:\Users\Admin\AppData\Local\Temp\f4ad2cb7d4d6b02b1debf1d41849b71e.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:604 -
C:\Users\Admin\AppData\Local\Temp\i8GNlo5RB3.exe"C:\Users\Admin\AppData\Local\Temp\i8GNlo5RB3.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3312 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sqlcmd.exe"3⤵
- Creates scheduled task(s)
PID:3460
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C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\f4ad2cb7d4d6b02b1debf1d41849b71e.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1356 -
C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
PID:3220
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\sqlcmd.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\sqlcmd.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3884 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sqlcmd.exe"2⤵
- Creates scheduled task(s)
PID:3564
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