b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68

General

Target

b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
Size

1.8MB
MD5

3f030ab8fcfc920904602e6cbfa631a6
SHA1

0c897537bcb484036c812ae5a57a0dbd58b7862d
SHA256

b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68
SHA512

a2a91662194f63799882f8a74b13f6328b92cf5912f2967fb16e558df3fad5476192e74091aee4f0a63e74435552114b6588689b5213496b411328cbf8e47061
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

Processes:

b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exeoobeldr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

Processes:

oobeldr.exe

pid process

4432 oobeldr.exe

pid	process
4432	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

Processes:

b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exeoobeldr.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.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

Processes:

oobeldr.exeb8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exeoobeldr.exe

pid	process
1932	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
1932	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
4432	oobeldr.exe
4432	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

Processes:

schtasks.exeschtasks.exe

pid process

1116 schtasks.exe
2760 schtasks.exe

pid	process
1116	schtasks.exe
2760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exeoobeldr.exe

pid	process
1932	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
1932	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
1932	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
1932	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
4432	oobeldr.exe
4432	oobeldr.exe
4432	oobeldr.exe
4432	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exeoobeldr.exe

description	pid	process	target process
PID 1932 wrote to memory of 1116	1932	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe	schtasks.exe
PID 1932 wrote to memory of 1116	1932	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe	schtasks.exe
PID 1932 wrote to memory of 1116	1932	b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe	schtasks.exe
PID 4432 wrote to memory of 2760	4432	oobeldr.exe	schtasks.exe
PID 4432 wrote to memory of 2760	4432	oobeldr.exe	schtasks.exe
PID 4432 wrote to memory of 2760	4432	oobeldr.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.exe
"C:\Users\Admin\AppData\Local\Temp\b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68.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:1932

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:1116

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:4432

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:2760

Network

MITRE ATT&CK Matrix ATT&CK 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

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Filesize
1.8MB

MD5
3f030ab8fcfc920904602e6cbfa631a6

SHA1
0c897537bcb484036c812ae5a57a0dbd58b7862d

SHA256
b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68

SHA512
a2a91662194f63799882f8a74b13f6328b92cf5912f2967fb16e558df3fad5476192e74091aee4f0a63e74435552114b6588689b5213496b411328cbf8e47061

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Filesize
1.8MB

MD5
3f030ab8fcfc920904602e6cbfa631a6

SHA1
0c897537bcb484036c812ae5a57a0dbd58b7862d

SHA256
b8bd3aaece1911e9bb3384f34a95aa3fc87f616c870d543827befaf36f802d68

SHA512
a2a91662194f63799882f8a74b13f6328b92cf5912f2967fb16e558df3fad5476192e74091aee4f0a63e74435552114b6588689b5213496b411328cbf8e47061

Download Submit
memory/1116-135-0x0000000000000000-mapping.dmp

Download
memory/1932-137-0x0000000001000000-0x0000000001044000-memory.dmp

Filesize
272KB

Download
memory/1932-132-0x00000000009E0000-0x0000000000CFF000-memory.dmp

Filesize
3.1MB

Download
memory/1932-138-0x00000000009E0000-0x0000000000CFF000-memory.dmp

Filesize
3.1MB

Download
memory/1932-139-0x00000000009E0000-0x0000000000CFF000-memory.dmp

Filesize
3.1MB

Download
memory/1932-140-0x0000000077730000-0x00000000778D3000-memory.dmp

Filesize
1.6MB

Download
memory/1932-141-0x0000000077730000-0x00000000778D3000-memory.dmp

Filesize
1.6MB

Download
memory/1932-134-0x00000000009E1000-0x00000000009E3000-memory.dmp

Filesize
8KB

Download
memory/1932-133-0x00000000009E1000-0x00000000009E3000-memory.dmp

Filesize
8KB

Download
memory/1932-136-0x00000000009E0000-0x0000000000CFF000-memory.dmp

Filesize
3.1MB

Download
memory/2760-150-0x0000000000000000-mapping.dmp

Download
memory/4432-144-0x0000000000B10000-0x0000000000E2F000-memory.dmp

Filesize
3.1MB

Download
memory/4432-147-0x0000000002E40000-0x0000000002E84000-memory.dmp

Filesize
272KB

Download
memory/4432-148-0x0000000077730000-0x00000000778D3000-memory.dmp

Filesize
1.6MB

Download
memory/4432-149-0x0000000000B11000-0x0000000000B13000-memory.dmp

Filesize
8KB

Download
memory/4432-146-0x0000000000B10000-0x0000000000E2F000-memory.dmp

Filesize
3.1MB

Download
memory/4432-151-0x0000000000B10000-0x0000000000E2F000-memory.dmp

Filesize
3.1MB

Download
memory/4432-152-0x0000000002E40000-0x0000000002E84000-memory.dmp

Filesize
272KB

Download
memory/4432-153-0x0000000077730000-0x00000000778D3000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads