45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303

General

Target

45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
Size

1.8MB
MD5

dd423589244daa6d2710aeda78a95cd0
SHA1

4d007d6895731c87c820971be427c9739978ee6c
SHA256

45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303
SHA512

7bac06f37926e58a93ce4ca7eec0d08fb9ecb811ebb0e8e522f8ec5702f5fcdb9cac2e3ff1a8373a079ef77f446048c96bfe3a8b3ac2434ae4661e54450f40aa
SSDEEP

49152:AiSzCD+K95aLs7zeqLTVtXtHFIDP8EehiM8qZA:AiSzCD+K95aUeqFtXtHwEEehig

Score

9^/10

discovery 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__	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	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	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	oobeldr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
4652	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	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
640	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
640	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
4652	oobeldr.exe
4652	oobeldr.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oobeldr.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2924	schtasks.exe
1344	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
640	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
640	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
640	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
640	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
4652	oobeldr.exe
4652	oobeldr.exe
4652	oobeldr.exe
4652	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 2924	640	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe	82
PID 640 wrote to memory of 2924	640	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe	82
PID 640 wrote to memory of 2924	640	45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe	82
PID 4652 wrote to memory of 1344	4652	oobeldr.exe	85
PID 4652 wrote to memory of 1344	4652	oobeldr.exe	85
PID 4652 wrote to memory of 1344	4652	oobeldr.exe	85

C:\Users\Admin\AppData\Local\Temp\45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.exe
"C:\Users\Admin\AppData\Local\Temp\45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303N.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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:640
- 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⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2924

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)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4652
- 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⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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
dd423589244daa6d2710aeda78a95cd0

SHA1
4d007d6895731c87c820971be427c9739978ee6c

SHA256
45c8fadbc4ffceb35901be762d4ac3a1381c8a72121e7bb20167b9a0a087d303

SHA512
7bac06f37926e58a93ce4ca7eec0d08fb9ecb811ebb0e8e522f8ec5702f5fcdb9cac2e3ff1a8373a079ef77f446048c96bfe3a8b3ac2434ae4661e54450f40aa

Download Submit
memory/640-8-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-12-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-2-0x0000000000521000-0x0000000000523000-memory.dmp

Filesize
8KB

Download
memory/640-4-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-5-0x0000000002690000-0x00000000026D4000-memory.dmp

Filesize
272KB

Download
memory/640-6-0x0000000000940000-0x0000000000941000-memory.dmp

Filesize
4KB

Download
memory/640-3-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-10-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-7-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-11-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-0-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-9-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-15-0x0000000000520000-0x000000000083F000-memory.dmp

Filesize
3.1MB

Download
memory/640-14-0x0000000002690000-0x00000000026D4000-memory.dmp

Filesize
272KB

Download
memory/640-1-0x0000000002690000-0x00000000026D4000-memory.dmp

Filesize
272KB

Download
memory/4652-20-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-29-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-17-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-21-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-23-0x0000000000F50000-0x0000000000F94000-memory.dmp

Filesize
272KB

Download
memory/4652-24-0x0000000000FE0000-0x0000000000FE1000-memory.dmp

Filesize
4KB

Download
memory/4652-22-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-25-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-26-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-27-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-28-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-19-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-30-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-31-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-32-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-33-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-34-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-35-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-37-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-38-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/4652-39-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads