Analysis
- max time kernel
143s - max time network
58s - platform
windows10_x64 - resource
win10v200430 - submitted
13/07/2020, 06:55
Static task
static1
Behavioral task
behavioral1
Sample
oc3243546.exe
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
oc3243546.exe
Resource
win10v200430
0 signatures
0 seconds
General
- Target oc3243546.exe
- Size 804KB
- Sample200713-yntvxancx2
- SHA256 6e6aebc63f1d6bcaf1859b1d9d75ee79d82d9af4059fd2c1a53fd84021c6393b
- MD5 86bbefcf532141a97566dc6b7f05c94b
- SHA1 ac082f324c82934d475eb977563c232cc0397e35
- SHA512 881f2d9f7cbcea359704d1b39d0d15ea05849df99eee745068dfb75e96cea51f0e674618d301eb94f728f45cfc6fc009d23a044dd26603e67501a86071fce821
- MD5 SHA1 SHA512
Score
8/10
Malware Config
Signatures
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3824 set thread context of 3180 3824 oc3243546.exe 66 - 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 behavior: MapViewOfSection 1 IoCs
pid Process 3824 oc3243546.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3824 wrote to memory of 3180 3824 oc3243546.exe 66 PID 3824 wrote to memory of 3180 3824 oc3243546.exe 66 PID 3824 wrote to memory of 3180 3824 oc3243546.exe 66 - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3180 oc3243546.exe - UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
resource yara_rule behavioral2/memory/3180-0-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral2/memory/3180-2-0x0000000000400000-0x0000000000450000-memory.dmp upx behavioral2/memory/3180-3-0x0000000000400000-0x0000000000450000-memory.dmp upx - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 1 checkip.dyndns.org - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3824 oc3243546.exe 3824 oc3243546.exe 3180 oc3243546.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\oc3243546.exe"C:\Users\Admin\AppData\Local\Temp\oc3243546.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
PID:3824 -
C:\Users\Admin\AppData\Local\Temp\oc3243546.exe"C:\Users\Admin\AppData\Local\Temp\oc3243546.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:3180
-