8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a

General

Target

8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
Size

1.8MB
MD5

6a59fce1a26306f3033b5452069646e5
SHA1

7aa4b8bbef28f946549cbbb261ef253e2c5c2661
SHA256

8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a
SHA512

d15f3cd8af7339ea9a76e6b3f38dfb2e045ad45c496dca536d98b5600fe273a7e823d7933bcd4474c928716e60ef7aedb5de54c1228cd3972ad9787884d911c4
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__	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
4936	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	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.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	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2620	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
2620	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
4936	oobeldr.exe
4936	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
3068	schtasks.exe
4144	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2620	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
2620	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
2620	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
2620	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
4936	oobeldr.exe
4936	oobeldr.exe
4936	oobeldr.exe
4936	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 3068	2620	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe	80
PID 2620 wrote to memory of 3068	2620	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe	80
PID 2620 wrote to memory of 3068	2620	8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe	80
PID 4936 wrote to memory of 4144	4936	oobeldr.exe	89
PID 4936 wrote to memory of 4144	4936	oobeldr.exe	89
PID 4936 wrote to memory of 4144	4936	oobeldr.exe	89

C:\Users\Admin\AppData\Local\Temp\8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.exe
"C:\Users\Admin\AppData\Local\Temp\8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a.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:2620
- 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:3068

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:4936
- 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:4144

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
6a59fce1a26306f3033b5452069646e5

SHA1
7aa4b8bbef28f946549cbbb261ef253e2c5c2661

SHA256
8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a

SHA512
d15f3cd8af7339ea9a76e6b3f38dfb2e045ad45c496dca536d98b5600fe273a7e823d7933bcd4474c928716e60ef7aedb5de54c1228cd3972ad9787884d911c4

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

Filesize
1.8MB

MD5
6a59fce1a26306f3033b5452069646e5

SHA1
7aa4b8bbef28f946549cbbb261ef253e2c5c2661

SHA256
8159924a7932b4b741b6ab0bf0b051461ee95b150dfc34897ba208290984f83a

SHA512
d15f3cd8af7339ea9a76e6b3f38dfb2e045ad45c496dca536d98b5600fe273a7e823d7933bcd4474c928716e60ef7aedb5de54c1228cd3972ad9787884d911c4

Download Submit
memory/2620-142-0x0000000077980000-0x0000000077B23000-memory.dmp

Filesize
1.6MB

Download
memory/2620-133-0x00000000003A0000-0x00000000006BF000-memory.dmp

Filesize
3.1MB

Download
memory/2620-136-0x00000000003A0000-0x00000000006BF000-memory.dmp

Filesize
3.1MB

Download
memory/2620-138-0x00000000003A1000-0x00000000003A3000-memory.dmp

Filesize
8KB

Download
memory/2620-137-0x00000000003A1000-0x00000000003A3000-memory.dmp

Filesize
8KB

Download
memory/2620-135-0x00000000003A0000-0x00000000006BF000-memory.dmp

Filesize
3.1MB

Download
memory/2620-140-0x00000000003A0000-0x00000000006BF000-memory.dmp

Filesize
3.1MB

Download
memory/2620-141-0x0000000000E90000-0x0000000000ED4000-memory.dmp

Filesize
272KB

Download
memory/2620-132-0x00000000003A0000-0x00000000006BF000-memory.dmp

Filesize
3.1MB

Download
memory/2620-134-0x0000000000E90000-0x0000000000ED4000-memory.dmp

Filesize
272KB

Download
memory/3068-139-0x0000000000000000-mapping.dmp

Download
memory/4144-148-0x0000000000000000-mapping.dmp

Download
memory/4936-145-0x0000000000A50000-0x0000000000D6F000-memory.dmp

Filesize
3.1MB

Download
memory/4936-147-0x0000000000A51000-0x0000000000A53000-memory.dmp

Filesize
8KB

Download
memory/4936-149-0x0000000000A50000-0x0000000000D6F000-memory.dmp

Filesize
3.1MB

Download
memory/4936-150-0x00000000010D0000-0x0000000001114000-memory.dmp

Filesize
272KB

Download
memory/4936-151-0x0000000077980000-0x0000000077B23000-memory.dmp

Filesize
1.6MB

Download
memory/4936-152-0x0000000000A50000-0x0000000000D6F000-memory.dmp

Filesize
3.1MB

Download
memory/4936-153-0x00000000010D0000-0x0000000001114000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads