933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd

General

Target

933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
Size

1.8MB
MD5

2bae3953e0a75b8a24b51d065815f205
SHA1

ad0bf7ff1a9fc281cdf2b3d551968cef2104d8ca
SHA256

933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd
SHA512

c1ac299c6c0ea97d5c1503eb97412f3b3c8eef9d76697dd1517a3d3048ca6e71016f621b0f5e787285cee968cd9ac8e2eec88dc34bcce1d0baf423a2fa54c8dc
SSDEEP

49152:AiSzCD+K95aLs7zeqLTVtXtHFIDP8EehiM8qZA:AiSzCD+K95aUeqFtXtHwEEehig

Score

9^/10

evasion trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
4988	oobeldr.exe

Checks BIOS information in registry 2 TTPs 4 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	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	oobeldr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	oobeldr.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4496	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
4496	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
4988	oobeldr.exe
4988	oobeldr.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
432	schtasks.exe
4856	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4496	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
4496	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
4496	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
4496	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
4988	oobeldr.exe
4988	oobeldr.exe
4988	oobeldr.exe
4988	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 432	4496	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe	80
PID 4496 wrote to memory of 432	4496	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe	80
PID 4496 wrote to memory of 432	4496	933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe	80
PID 4988 wrote to memory of 4856	4988	oobeldr.exe	90
PID 4988 wrote to memory of 4856	4988	oobeldr.exe	90
PID 4988 wrote to memory of 4856	4988	oobeldr.exe	90

C:\Users\Admin\AppData\Local\Temp\933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe
"C:\Users\Admin\AppData\Local\Temp\933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4496
- C:\Windows\SysWOW64\schtasks.exe
  /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
  2⤵
  - Creates scheduled task(s)
  PID:432

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4988
- C:\Windows\SysWOW64\schtasks.exe
  /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
  2⤵
  - Creates scheduled task(s)
  PID:4856

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
1.8MB

MD5
2bae3953e0a75b8a24b51d065815f205

SHA1
ad0bf7ff1a9fc281cdf2b3d551968cef2104d8ca

SHA256
933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd

SHA512
c1ac299c6c0ea97d5c1503eb97412f3b3c8eef9d76697dd1517a3d3048ca6e71016f621b0f5e787285cee968cd9ac8e2eec88dc34bcce1d0baf423a2fa54c8dc

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
1.8MB

MD5
2bae3953e0a75b8a24b51d065815f205

SHA1
ad0bf7ff1a9fc281cdf2b3d551968cef2104d8ca

SHA256
933c1d35469f45c6a77fbc723826381f746a251f911337f62496fbf314a5e2dd

SHA512
c1ac299c6c0ea97d5c1503eb97412f3b3c8eef9d76697dd1517a3d3048ca6e71016f621b0f5e787285cee968cd9ac8e2eec88dc34bcce1d0baf423a2fa54c8dc

Download Submit
memory/432-140-0x0000000000000000-mapping.dmp

Download
memory/4496-142-0x00000000025E0000-0x0000000002624000-memory.dmp

Filesize
272KB

Download
memory/4496-134-0x00000000025E0000-0x0000000002624000-memory.dmp

Filesize
272KB

Download
memory/4496-137-0x0000000000B71000-0x0000000000B73000-memory.dmp

Filesize
8KB

Download
memory/4496-138-0x0000000000B70000-0x0000000000E8F000-memory.dmp

Filesize
3.1MB

Download
memory/4496-135-0x0000000000B70000-0x0000000000E8F000-memory.dmp

Filesize
3.1MB

Download
memory/4496-139-0x0000000077440000-0x00000000775E3000-memory.dmp

Filesize
1.6MB

Download
memory/4496-141-0x0000000000B70000-0x0000000000E8F000-memory.dmp

Filesize
3.1MB

Download
memory/4496-132-0x0000000000B70000-0x0000000000E8F000-memory.dmp

Filesize
3.1MB

Download
memory/4496-143-0x0000000077440000-0x00000000775E3000-memory.dmp

Filesize
1.6MB

Download
memory/4496-136-0x0000000000B71000-0x0000000000B73000-memory.dmp

Filesize
8KB

Download
memory/4496-133-0x0000000000B70000-0x0000000000E8F000-memory.dmp

Filesize
3.1MB

Download
memory/4856-149-0x0000000000000000-mapping.dmp

Download
memory/4988-146-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/4988-148-0x0000000000521000-0x0000000000523000-memory.dmp

Filesize
8KB

Download
memory/4988-150-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/4988-151-0x00000000011D0000-0x0000000001214000-memory.dmp

Filesize
272KB

Download
memory/4988-152-0x0000000077440000-0x00000000775E3000-memory.dmp

Filesize
1.6MB

Download
memory/4988-153-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/4988-154-0x00000000011D0000-0x0000000001214000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads