b9fbd47b1c2b112277e35d94b125107262e9fba1dfe33bcd3842795432bc78d5

General

Target
RFQ.exe
Size 400KB
Sample200708-sr4wc49ssx
SHA256 b9fbd47b1c2b112277e35d94b125107262e9fba1dfe33bcd3842795432bc78d5
MD5 90003ac64105d46135fa50dd89d2de04
SHA1 49a7177b4dca23eb1e42b1a009d3bc762a0c90db
SHA512 4e55b099b6376fbe3dd51f3a55b5c2587076b97f7ee802965923aab6164b0d3758b6d88155bf4ca80af91748daa89e377e1a267a73711db19fc475d06102e08d
MD5 SHA1 SHA512

Score

9^/10

spyware

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1520 set thread context of 464	1520	RFQ.exe	29

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	RFQ.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 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

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

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

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	RFQ.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 1784	1520	RFQ.exe	27
PID 1520 wrote to memory of 1784	1520	RFQ.exe	27
PID 1520 wrote to memory of 1784	1520	RFQ.exe	27
PID 1520 wrote to memory of 1784	1520	RFQ.exe	27
PID 1520 wrote to memory of 464	1520	RFQ.exe	29
PID 1520 wrote to memory of 464	1520	RFQ.exe	29
PID 1520 wrote to memory of 464	1520	RFQ.exe	29
PID 1520 wrote to memory of 464	1520	RFQ.exe	29
PID 1520 wrote to memory of 464	1520	RFQ.exe	29
PID 1520 wrote to memory of 464	1520	RFQ.exe	29
PID 1520 wrote to memory of 464	1520	RFQ.exe	29
PID 1520 wrote to memory of 464	1520	RFQ.exe	29
PID 1520 wrote to memory of 464	1520	RFQ.exe	29

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	464	RFQ.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
464	RFQ.exe
464	RFQ.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

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

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1784	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
1⤵
- Suspicious use of SetThreadContext
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Looks for VirtualBox Guest Additions in registry
- Suspicious use of WriteProcessMemory
- Maps connected drives based on registry
PID:1520
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HEJtLPiuhcJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC81E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1784
- C:\Users\Admin\AppData\Local\Temp\RFQ.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  PID:464