7cbe84a986434d919c2e616bfd9f78d94c9986bce211b34496e2d1139ff87f6b

General

Target
SS21 order IN644.exe
Size 935KB
Sample201019-j775tpdvx2
SHA256 7cbe84a986434d919c2e616bfd9f78d94c9986bce211b34496e2d1139ff87f6b
MD5 9e37bbffb267a00d169719a493003c51
SHA1 63dcff1b15d6bb01feb8bd8696242a0c6c5b5cbd
SHA512 6d03b097eb6e40d52ceeeabde01cd521091a5b0574963d9cd0ba2a308cd82c84db326980e0f0b500897d4ae1804c3df4250817fb9b8263f49991d526d8953c44
MD5 SHA1 SHA512

Score

9^/10

evasion

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

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	SS21 order IN644.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	SS21 order IN644.exe

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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	SS21 order IN644.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	SS21 order IN644.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3888 set thread context of 2520	3888	SS21 order IN644.exe	78

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
2844	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2520	SS21 order IN644.exe
2520	SS21 order IN644.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	SS21 order IN644.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 2844	3888	SS21 order IN644.exe	76
PID 3888 wrote to memory of 2844	3888	SS21 order IN644.exe	76
PID 3888 wrote to memory of 2844	3888	SS21 order IN644.exe	76
PID 3888 wrote to memory of 2520	3888	SS21 order IN644.exe	78
PID 3888 wrote to memory of 2520	3888	SS21 order IN644.exe	78
PID 3888 wrote to memory of 2520	3888	SS21 order IN644.exe	78
PID 3888 wrote to memory of 2520	3888	SS21 order IN644.exe	78
PID 3888 wrote to memory of 2520	3888	SS21 order IN644.exe	78
PID 3888 wrote to memory of 2520	3888	SS21 order IN644.exe	78
PID 3888 wrote to memory of 2520	3888	SS21 order IN644.exe	78
PID 3888 wrote to memory of 2520	3888	SS21 order IN644.exe	78

C:\Users\Admin\AppData\Local\Temp\SS21 order IN644.exe
"C:\Users\Admin\AppData\Local\Temp\SS21 order IN644.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3888
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jODesfbEbNs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2F5E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2844
- C:\Users\Admin\AppData\Local\Temp\SS21 order IN644.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2520