238788e74cb6c3236215f14bced5cfb01458fdd84a924d615f54a597db2f8f27

General

Target

RFQ.exe
Size

401KB
MD5

5e6dbf9a72d11baea82e8a72d7dc04b7
SHA1

8331bf45f28febf79f3318f4c8054869e4245822
SHA256

238788e74cb6c3236215f14bced5cfb01458fdd84a924d615f54a597db2f8f27
SHA512

5f5b71f36903f31517ff6284a17f067f85a59773844517a61774e218b7e2a23fceba34598e9fb8cd40594d546af71f2f5765cfab8d39b9628aadabdeeb1aee51

Score

9^/10

spyware

Malware Config

Signatures

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

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2892	2536	RFQ.exe	73
PID 2536 wrote to memory of 2892	2536	RFQ.exe	73
PID 2536 wrote to memory of 2892	2536	RFQ.exe	73
PID 2536 wrote to memory of 4020	2536	RFQ.exe	75
PID 2536 wrote to memory of 4020	2536	RFQ.exe	75
PID 2536 wrote to memory of 4020	2536	RFQ.exe	75
PID 2536 wrote to memory of 4020	2536	RFQ.exe	75
PID 2536 wrote to memory of 4020	2536	RFQ.exe	75
PID 2536 wrote to memory of 4020	2536	RFQ.exe	75
PID 2536 wrote to memory of 4020	2536	RFQ.exe	75
PID 2536 wrote to memory of 4020	2536	RFQ.exe	75

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4020	RFQ.exe

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

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

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
2892	schtasks.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2536 set thread context of 4020	2536	RFQ.exe	75

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4020	RFQ.exe
4020	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 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

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Checks BIOS information in registry
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
PID:2536
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\srLQeRhwmCbwr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp30E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2892
- 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:4020