8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479

General

Target

8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
Size

1.8MB
MD5

6d1943fbc89a0b49b526eaf2f6b29a12
SHA1

49ded11616c4e60f1d76e74201405c19b620f3e4
SHA256

8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479
SHA512

f6b75111d760509fee077280521ac4ac5812d931acd8a5f0cf73f8bdaa1b20d3859c8b1f3285bf7a601a33093bb7a2b33042859725d87371c6d1e60a24139151
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:

8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exeoobeldr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

Processes:

oobeldr.exe

pid process

4264 oobeldr.exe

pid	process
4264	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:

8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exeoobeldr.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.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:

8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exeoobeldr.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exeoobeldr.exe

pid	process
3136	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
3136	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
4264	oobeldr.exe
4264	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

3824 schtasks.exe
1732 schtasks.exe

pid	process
3824	schtasks.exe
1732	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exeoobeldr.exe

pid	process
3136	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
3136	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
3136	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
3136	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
4264	oobeldr.exe
4264	oobeldr.exe
4264	oobeldr.exe
4264	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exeoobeldr.exe

description	pid	process	target process
PID 3136 wrote to memory of 3824	3136	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe	schtasks.exe
PID 3136 wrote to memory of 3824	3136	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe	schtasks.exe
PID 3136 wrote to memory of 3824	3136	8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe	schtasks.exe
PID 4264 wrote to memory of 1732	4264	oobeldr.exe	schtasks.exe
PID 4264 wrote to memory of 1732	4264	oobeldr.exe	schtasks.exe
PID 4264 wrote to memory of 1732	4264	oobeldr.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.exe
"C:\Users\Admin\AppData\Local\Temp\8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479.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:3136

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:3824

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:4264

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:1732

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
6d1943fbc89a0b49b526eaf2f6b29a12

SHA1
49ded11616c4e60f1d76e74201405c19b620f3e4

SHA256
8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479

SHA512
f6b75111d760509fee077280521ac4ac5812d931acd8a5f0cf73f8bdaa1b20d3859c8b1f3285bf7a601a33093bb7a2b33042859725d87371c6d1e60a24139151

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

MD5
6d1943fbc89a0b49b526eaf2f6b29a12

SHA1
49ded11616c4e60f1d76e74201405c19b620f3e4

SHA256
8f2621be73adf509471ab611032f457348b97db11e84098cd2188f0b748a8479

SHA512
f6b75111d760509fee077280521ac4ac5812d931acd8a5f0cf73f8bdaa1b20d3859c8b1f3285bf7a601a33093bb7a2b33042859725d87371c6d1e60a24139151

Download Submit
memory/1732-152-0x0000000000000000-mapping.dmp

Download
memory/3136-142-0x0000000000D00000-0x0000000000D44000-memory.dmp

Filesize
272KB

Download
memory/3136-133-0x00000000009A0000-0x0000000000CBF000-memory.dmp

Filesize
3.1MB

Download
memory/3136-137-0x00000000775B0000-0x0000000077753000-memory.dmp

Filesize
1.6MB

Download
memory/3136-138-0x00000000009A1000-0x00000000009A3000-memory.dmp

Filesize
8KB

Download
memory/3136-139-0x00000000009A1000-0x00000000009A3000-memory.dmp

Filesize
8KB

Download
memory/3136-136-0x00000000009A0000-0x0000000000CBF000-memory.dmp

Filesize
3.1MB

Download
memory/3136-141-0x00000000009A0000-0x0000000000CBF000-memory.dmp

Filesize
3.1MB

Download
memory/3136-132-0x00000000009A0000-0x0000000000CBF000-memory.dmp

Filesize
3.1MB

Download
memory/3136-143-0x00000000775B0000-0x0000000077753000-memory.dmp

Filesize
1.6MB

Download
memory/3136-135-0x00000000009A0000-0x0000000000CBF000-memory.dmp

Filesize
3.1MB

Download
memory/3136-134-0x0000000000D00000-0x0000000000D44000-memory.dmp

Filesize
272KB

Download
memory/3824-140-0x0000000000000000-mapping.dmp

Download
memory/4264-148-0x0000000000560000-0x000000000087F000-memory.dmp

Filesize
3.1MB

Download
memory/4264-149-0x0000000002700000-0x0000000002744000-memory.dmp

Filesize
272KB

Download
memory/4264-150-0x00000000775B0000-0x0000000077753000-memory.dmp

Filesize
1.6MB

Download
memory/4264-151-0x0000000000561000-0x0000000000563000-memory.dmp

Filesize
8KB

Download
memory/4264-146-0x0000000000560000-0x000000000087F000-memory.dmp

Filesize
3.1MB

Download
memory/4264-153-0x0000000000560000-0x000000000087F000-memory.dmp

Filesize
3.1MB

Download
memory/4264-154-0x0000000002700000-0x0000000002744000-memory.dmp

Filesize
272KB

Download
memory/4264-155-0x00000000775B0000-0x0000000077753000-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