b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388

General

Target

b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
Size

1.8MB
MD5

4430bf617587d1219eaf44b93785d51a
SHA1

eee1c97209dd2ff00214a981769971929cd5cd4a
SHA256

b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388
SHA512

382446c68daeff176e74dacbd18836dbd4988fac7ef3ddc4a7d5f0ae3142738035c7a86d2139203a8d8e9550699a292a183577077192987e13c33fe04350b791
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__	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
1160	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	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.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	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
5076	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
5076	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
1160	oobeldr.exe
1160	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
4920	schtasks.exe
1388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5076	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
5076	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
5076	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
5076	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
1160	oobeldr.exe
1160	oobeldr.exe
1160	oobeldr.exe
1160	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 4920	5076	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe	82
PID 5076 wrote to memory of 4920	5076	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe	82
PID 5076 wrote to memory of 4920	5076	b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe	82
PID 1160 wrote to memory of 1388	1160	oobeldr.exe	92
PID 1160 wrote to memory of 1388	1160	oobeldr.exe	92
PID 1160 wrote to memory of 1388	1160	oobeldr.exe	92

C:\Users\Admin\AppData\Local\Temp\b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.exe
"C:\Users\Admin\AppData\Local\Temp\b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388.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:5076
- 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:4920

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:1160
- 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:1388

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
4430bf617587d1219eaf44b93785d51a

SHA1
eee1c97209dd2ff00214a981769971929cd5cd4a

SHA256
b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388

SHA512
382446c68daeff176e74dacbd18836dbd4988fac7ef3ddc4a7d5f0ae3142738035c7a86d2139203a8d8e9550699a292a183577077192987e13c33fe04350b791

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

Filesize
1.8MB

MD5
4430bf617587d1219eaf44b93785d51a

SHA1
eee1c97209dd2ff00214a981769971929cd5cd4a

SHA256
b4f86b0876a6eba0224f22c3a9d577e8b0b7ae971ffa32be339649e1e3361388

SHA512
382446c68daeff176e74dacbd18836dbd4988fac7ef3ddc4a7d5f0ae3142738035c7a86d2139203a8d8e9550699a292a183577077192987e13c33fe04350b791

Download Submit
memory/1160-151-0x0000000000970000-0x0000000000C8F000-memory.dmp

Filesize
3.1MB

Download
memory/1160-153-0x0000000000970000-0x0000000000C8F000-memory.dmp

Filesize
3.1MB

Download
memory/1160-145-0x0000000000DD0000-0x0000000000E14000-memory.dmp

Filesize
272KB

Download
memory/1160-147-0x0000000000970000-0x0000000000C8F000-memory.dmp

Filesize
3.1MB

Download
memory/1160-144-0x0000000000970000-0x0000000000C8F000-memory.dmp

Filesize
3.1MB

Download
memory/1160-155-0x0000000000970000-0x0000000000C8F000-memory.dmp

Filesize
3.1MB

Download
memory/1160-154-0x0000000000DD0000-0x0000000000E14000-memory.dmp

Filesize
272KB

Download
memory/1160-149-0x0000000000971000-0x0000000000973000-memory.dmp

Filesize
8KB

Download
memory/1160-146-0x0000000000970000-0x0000000000C8F000-memory.dmp

Filesize
3.1MB

Download
memory/1160-143-0x0000000000970000-0x0000000000C8F000-memory.dmp

Filesize
3.1MB

Download
memory/1160-156-0x0000000000970000-0x0000000000C8F000-memory.dmp

Filesize
3.1MB

Download
memory/1160-152-0x0000000077290000-0x0000000077433000-memory.dmp

Filesize
1.6MB

Download
memory/1388-150-0x0000000000000000-mapping.dmp

Download
memory/4920-137-0x0000000000000000-mapping.dmp

Download
memory/5076-136-0x0000000000C11000-0x0000000000C13000-memory.dmp

Filesize
8KB

Download
memory/5076-133-0x00000000029E0000-0x0000000002A24000-memory.dmp

Filesize
272KB

Download
memory/5076-132-0x0000000000C10000-0x0000000000F2F000-memory.dmp

Filesize
3.1MB

Download
memory/5076-135-0x0000000000C11000-0x0000000000C13000-memory.dmp

Filesize
8KB

Download
memory/5076-134-0x0000000000C10000-0x0000000000F2F000-memory.dmp

Filesize
3.1MB

Download
memory/5076-140-0x0000000077290000-0x0000000077433000-memory.dmp

Filesize
1.6MB

Download
memory/5076-139-0x00000000029E0000-0x0000000002A24000-memory.dmp

Filesize
272KB

Download
memory/5076-138-0x0000000000C10000-0x0000000000F2F000-memory.dmp

Filesize
3.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads