ca1ebcfb8bfb0a2463a1e28d218d69f1b3d1d4b97be41781a43b151b7e799a61

General

Target
RFQ1.exe
Size 1.1MB
Sample200715-299p22fgd2
SHA256 ca1ebcfb8bfb0a2463a1e28d218d69f1b3d1d4b97be41781a43b151b7e799a61
MD5 02712b07fdfbb4824d311b21fa64ffac
SHA1 641b28d100f57650cd13fef9bc4d0f9887990436
SHA512 2c8ec4084bbe18b00eb790077b74b7e1a32bce2e6411b0c3fabeb32357ff57bf7ffaceeaa23c474451a8d2c585522ac2ce87c8a5eaa79e937da679a9307fb5ad
MD5 SHA1 SHA512

Score

9^/10

spyware evasion

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

Peripheral Device Discovery

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	RFQ1.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	RFQ1.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1124 wrote to memory of 1868	1124	RFQ1.exe	27
PID 1124 wrote to memory of 1868	1124	RFQ1.exe	27
PID 1124 wrote to memory of 1868	1124	RFQ1.exe	27
PID 1124 wrote to memory of 1868	1124	RFQ1.exe	27
PID 1124 wrote to memory of 1684	1124	RFQ1.exe	29
PID 1124 wrote to memory of 1684	1124	RFQ1.exe	29
PID 1124 wrote to memory of 1684	1124	RFQ1.exe	29
PID 1124 wrote to memory of 1684	1124	RFQ1.exe	29
PID 1124 wrote to memory of 1684	1124	RFQ1.exe	29
PID 1124 wrote to memory of 1684	1124	RFQ1.exe	29
PID 1124 wrote to memory of 1684	1124	RFQ1.exe	29
PID 1124 wrote to memory of 1684	1124	RFQ1.exe	29
PID 1124 wrote to memory of 1684	1124	RFQ1.exe	29

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1684	RFQ1.exe
1684	RFQ1.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	RFQ1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	RFQ1.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
1868	schtasks.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1124 set thread context of 1684	1124	RFQ1.exe	29

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	RFQ1.exe

C:\Users\Admin\AppData\Local\Temp\RFQ1.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ1.exe"
1⤵
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
- Checks BIOS information in registry
- Suspicious use of SetThreadContext
PID:1124
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FYGaZJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp81A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1868
- C:\Users\Admin\AppData\Local\Temp\RFQ1.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1684