4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12

Analysis

max time kernel
58s
max time network
67s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
05-10-2022 16:36

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General

Target

4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
Size

1.8MB
MD5

31635a5fd0069116dab027ce4655575f
SHA1

38d25edda95e848956a7f7ad10861bd6eb7e9c84
SHA256

4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12
SHA512

7065bcbe101def0c2b5b13c75d38a27e8a335923195cf1d5d917fe5a06121fe2f761136e9373a3a49fc81b27487c19a3498b13d20759ec78c856d3c94cef34ee
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__	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
4304	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\VideoBiosVersion	oobeldr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	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	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4544	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
4544	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
4304	oobeldr.exe
4304	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
4208	schtasks.exe
3512	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4544	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
4544	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
4544	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
4544	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
4304	oobeldr.exe
4304	oobeldr.exe
4304	oobeldr.exe
4304	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4544 wrote to memory of 3512	4544	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe	66
PID 4544 wrote to memory of 3512	4544	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe	66
PID 4544 wrote to memory of 3512	4544	4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe	66
PID 4304 wrote to memory of 4208	4304	oobeldr.exe	69
PID 4304 wrote to memory of 4208	4304	oobeldr.exe	69
PID 4304 wrote to memory of 4208	4304	oobeldr.exe	69

C:\Users\Admin\AppData\Local\Temp\4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.exe
"C:\Users\Admin\AppData\Local\Temp\4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12.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:4544
- 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:3512

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:4304
- 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:4208

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1.8MB

MD5
31635a5fd0069116dab027ce4655575f

SHA1
38d25edda95e848956a7f7ad10861bd6eb7e9c84

SHA256
4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12

SHA512
7065bcbe101def0c2b5b13c75d38a27e8a335923195cf1d5d917fe5a06121fe2f761136e9373a3a49fc81b27487c19a3498b13d20759ec78c856d3c94cef34ee

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

Filesize
1.8MB

MD5
31635a5fd0069116dab027ce4655575f

SHA1
38d25edda95e848956a7f7ad10861bd6eb7e9c84

SHA256
4f383ba16164b64ee24551e57272e00f3790676c5fb8ac77b4efb8505e267d12

SHA512
7065bcbe101def0c2b5b13c75d38a27e8a335923195cf1d5d917fe5a06121fe2f761136e9373a3a49fc81b27487c19a3498b13d20759ec78c856d3c94cef34ee

Download Submit
memory/3512-179-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-186-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-185-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-173-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-174-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-175-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-176-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-184-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-189-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-188-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-187-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-177-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-172-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-178-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-183-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-182-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-181-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/3512-180-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4304-260-0x0000000001290000-0x00000000015AF000-memory.dmp

Filesize
3.1MB

Download
memory/4304-262-0x0000000001290000-0x00000000015AF000-memory.dmp

Filesize
3.1MB

Download
memory/4304-195-0x0000000001290000-0x00000000015AF000-memory.dmp

Filesize
3.1MB

Download
memory/4304-261-0x0000000000DE0000-0x0000000000E24000-memory.dmp

Filesize
272KB

Download
memory/4304-235-0x0000000000DE0000-0x0000000000E24000-memory.dmp

Filesize
272KB

Download
memory/4304-236-0x0000000001290000-0x00000000015AF000-memory.dmp

Filesize
3.1MB

Download
memory/4304-238-0x0000000001290000-0x00000000015AF000-memory.dmp

Filesize
3.1MB

Download
memory/4544-140-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-144-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-151-0x0000000000E50000-0x000000000116F000-memory.dmp

Filesize
3.1MB

Download
memory/4544-152-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-153-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-154-0x0000000000E50000-0x000000000116F000-memory.dmp

Filesize
3.1MB

Download
memory/4544-155-0x0000000000E50000-0x000000000116F000-memory.dmp

Filesize
3.1MB

Download
memory/4544-156-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-157-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-158-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-159-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-160-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-161-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-162-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-163-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-164-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-165-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-166-0x0000000000E51000-0x0000000000E53000-memory.dmp

Filesize
8KB

Download
memory/4544-167-0x0000000000E51000-0x0000000000E53000-memory.dmp

Filesize
8KB

Download
memory/4544-168-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-169-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-149-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-170-0x0000000000E50000-0x000000000116F000-memory.dmp

Filesize
3.1MB

Download
memory/4544-148-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-147-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-146-0x0000000002FD0000-0x0000000003014000-memory.dmp

Filesize
272KB

Download
memory/4544-145-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-150-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-143-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-142-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-141-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-120-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-139-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-138-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-137-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-136-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-135-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-134-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-133-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-132-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-131-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-190-0x0000000000E50000-0x000000000116F000-memory.dmp

Filesize
3.1MB

Download
memory/4544-191-0x0000000002FD0000-0x0000000003014000-memory.dmp

Filesize
272KB

Download
memory/4544-130-0x0000000000E50000-0x000000000116F000-memory.dmp

Filesize
3.1MB

Download
memory/4544-129-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-128-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-127-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-126-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-125-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-124-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-123-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-122-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download
memory/4544-121-0x0000000077340000-0x00000000774CE000-memory.dmp

Filesize
1.6MB

Download