bitrat | af7800b9d14d41db33e7aeb100aac52bcae40bd7dfa2f151ffb4e76e810ea965

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	adodbe.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	adodbe.exe

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	adodbe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	adodbe.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	284445efc60c1a68e8199c7dc675ff82.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	adodbe.exe

Executes dropped EXE 3 IoCs

pid	Process
4020	adodbe.exe
3928	adodbe.exe
4776	adodbe.exe

UPX packed file 17 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4776-36-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-38-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-40-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-42-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-41-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-48-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-49-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-51-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-52-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-50-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-47-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-46-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-55-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-54-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-75-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-81-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4776-84-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

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

T1120

System Information Discovery

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

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4776	adodbe.exe
4776	adodbe.exe
4776	adodbe.exe
4776	adodbe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4020 set thread context of 4776	4020	adodbe.exe	112

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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/Job

pid	Process
4620	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4020	adodbe.exe
4020	adodbe.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4020	adodbe.exe
Token: SeShutdownPrivilege	4776	adodbe.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4776	adodbe.exe
4776	adodbe.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3412 wrote to memory of 4020	3412	284445efc60c1a68e8199c7dc675ff82.exe	91
PID 3412 wrote to memory of 4020	3412	284445efc60c1a68e8199c7dc675ff82.exe	91
PID 3412 wrote to memory of 4020	3412	284445efc60c1a68e8199c7dc675ff82.exe	91
PID 4020 wrote to memory of 4620	4020	adodbe.exe	109
PID 4020 wrote to memory of 4620	4020	adodbe.exe	109
PID 4020 wrote to memory of 4620	4020	adodbe.exe	109
PID 4020 wrote to memory of 3928	4020	adodbe.exe	111
PID 4020 wrote to memory of 3928	4020	adodbe.exe	111
PID 4020 wrote to memory of 3928	4020	adodbe.exe	111
PID 4020 wrote to memory of 4776	4020	adodbe.exe	112
PID 4020 wrote to memory of 4776	4020	adodbe.exe	112
PID 4020 wrote to memory of 4776	4020	adodbe.exe	112
PID 4020 wrote to memory of 4776	4020	adodbe.exe	112
PID 4020 wrote to memory of 4776	4020	adodbe.exe	112
PID 4020 wrote to memory of 4776	4020	adodbe.exe	112
PID 4020 wrote to memory of 4776	4020	adodbe.exe	112

C:\Users\Admin\AppData\Local\Temp\284445efc60c1a68e8199c7dc675ff82.exe
"C:\Users\Admin\AppData\Local\Temp\284445efc60c1a68e8199c7dc675ff82.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3412
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\adodbe.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\adodbe.exe"
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Checks computer location settings
  - Executes dropped EXE
  - Maps connected drives based on registry
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4020
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NWKQwZWIgp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2AF3.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4620
- - C:\Users\Admin\AppData\Local\Temp\RarSFX0\adodbe.exe
    "C:\Users\Admin\AppData\Local\Temp\RarSFX0\adodbe.exe"
    3⤵
    - Executes dropped EXE
    PID:3928
- - C:\Users\Admin\AppData\Local\Temp\RarSFX0\adodbe.exe
    "C:\Users\Admin\AppData\Local\Temp\RarSFX0\adodbe.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion