ca1ebcfb8bfb0a2463a1e28d218d69f1b3d1d4b97be41781a43b151b7e799a61

General

Target

RFQ1.exe
Size

1.1MB
MD5

02712b07fdfbb4824d311b21fa64ffac
SHA1

641b28d100f57650cd13fef9bc4d0f9887990436
SHA256

ca1ebcfb8bfb0a2463a1e28d218d69f1b3d1d4b97be41781a43b151b7e799a61
SHA512

2c8ec4084bbe18b00eb790077b74b7e1a32bce2e6411b0c3fabeb32357ff57bf7ffaceeaa23c474451a8d2c585522ac2ce87c8a5eaa79e937da679a9307fb5ad

Score

9^/10

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	RFQ1.exe
Token: SeDebugPrivilege	3444	RFQ1.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1732 set thread context of 3444	1732	RFQ1.exe	76

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
3924	schtasks.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.
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

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 3924	1732	RFQ1.exe	73
PID 1732 wrote to memory of 3924	1732	RFQ1.exe	73
PID 1732 wrote to memory of 3924	1732	RFQ1.exe	73
PID 1732 wrote to memory of 3888	1732	RFQ1.exe	75
PID 1732 wrote to memory of 3888	1732	RFQ1.exe	75
PID 1732 wrote to memory of 3888	1732	RFQ1.exe	75
PID 1732 wrote to memory of 3444	1732	RFQ1.exe	76
PID 1732 wrote to memory of 3444	1732	RFQ1.exe	76
PID 1732 wrote to memory of 3444	1732	RFQ1.exe	76
PID 1732 wrote to memory of 3444	1732	RFQ1.exe	76
PID 1732 wrote to memory of 3444	1732	RFQ1.exe	76
PID 1732 wrote to memory of 3444	1732	RFQ1.exe	76
PID 1732 wrote to memory of 3444	1732	RFQ1.exe	76
PID 1732 wrote to memory of 3444	1732	RFQ1.exe	76

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

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

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

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

C:\Users\Admin\AppData\Local\Temp\RFQ1.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ1.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Maps connected drives based on registry
- Checks BIOS information in registry
PID:1732
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FYGaZJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF478.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3924
- C:\Users\Admin\AppData\Local\Temp\RFQ1.exe
  "{path}"
  2⤵
  PID:3888
- C:\Users\Admin\AppData\Local\Temp\RFQ1.exe
  "{path}"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  PID:3444