4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e | Triage

Analysis

max time kernel
51s
max time network
64s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
02/10/2022, 11:43 UTC

Sharing

Report Analysis Logs

General

Target

4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
Size

1.8MB
MD5

347ec0e29a511cb707515978ae3cb052
SHA1

d1670765edae138e37f1093335815cac8e4703de
SHA256

4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e
SHA512

695ce575e85971bb754ea386ad33caee58af5af90ff050f6d6cbb408a007d3d5a5d921cfd29590e7fc5982ffbbfaffefafc5337213ea965d6ca6d52fe85e4272
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

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
3476	oobeldr.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.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

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2732	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
2732	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
3476	oobeldr.exe
3476	oobeldr.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

Scheduled Task

pid	Process
968	schtasks.exe
776	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2732	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
2732	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
2732	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
2732	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
3476	oobeldr.exe
3476	oobeldr.exe
3476	oobeldr.exe
3476	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 968	2732	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe	66
PID 2732 wrote to memory of 968	2732	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe	66
PID 2732 wrote to memory of 968	2732	4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe	66
PID 3476 wrote to memory of 776	3476	oobeldr.exe	69
PID 3476 wrote to memory of 776	3476	oobeldr.exe	69
PID 3476 wrote to memory of 776	3476	oobeldr.exe	69

C:\Users\Admin\AppData\Local\Temp\4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.exe
"C:\Users\Admin\AppData\Local\Temp\4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e.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:2732
- 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:968

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:3476
- 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:776

Network

No results found

20.42.73.27:443

322 B
7
84.53.175.11:80

322 B
7

No results found

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion

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
347ec0e29a511cb707515978ae3cb052

SHA1
d1670765edae138e37f1093335815cac8e4703de

SHA256
4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e

SHA512
695ce575e85971bb754ea386ad33caee58af5af90ff050f6d6cbb408a007d3d5a5d921cfd29590e7fc5982ffbbfaffefafc5337213ea965d6ca6d52fe85e4272

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

Filesize
1.8MB

MD5
347ec0e29a511cb707515978ae3cb052

SHA1
d1670765edae138e37f1093335815cac8e4703de

SHA256
4d46b9a8b53b3621038c124d3389465f752af09c748607a87b24a33066524d7e

SHA512
695ce575e85971bb754ea386ad33caee58af5af90ff050f6d6cbb408a007d3d5a5d921cfd29590e7fc5982ffbbfaffefafc5337213ea965d6ca6d52fe85e4272

Download Submit
memory/968-181-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-188-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-187-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-186-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-185-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-184-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-183-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-182-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-180-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-179-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-178-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-177-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-176-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-175-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-174-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-173-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-172-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/968-171-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-140-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-141-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-144-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-145-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-146-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-147-0x0000000001240000-0x0000000001284000-memory.dmp

Filesize
272KB

Download
memory/2732-148-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-149-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-150-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-151-0x00000000012D0000-0x00000000015EF000-memory.dmp

Filesize
3.1MB

Download
memory/2732-152-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-153-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-154-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-155-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-156-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-157-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-158-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-160-0x00000000012D0000-0x00000000015EF000-memory.dmp

Filesize
3.1MB

Download
memory/2732-159-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-161-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-162-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-163-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-164-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-165-0x00000000012D1000-0x00000000012D3000-memory.dmp

Filesize
8KB

Download
memory/2732-166-0x00000000012D0000-0x00000000015EF000-memory.dmp

Filesize
3.1MB

Download
memory/2732-167-0x00000000012D1000-0x00000000012D3000-memory.dmp

Filesize
8KB

Download
memory/2732-168-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-169-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-142-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-143-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-120-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-139-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-138-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-137-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-136-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-135-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-134-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-133-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-132-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-131-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-130-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-129-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-128-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-127-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-126-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-125-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-124-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-189-0x00000000012D0000-0x00000000015EF000-memory.dmp

Filesize
3.1MB

Download
memory/2732-190-0x0000000001240000-0x0000000001284000-memory.dmp

Filesize
272KB

Download
memory/2732-123-0x00000000012D0000-0x00000000015EF000-memory.dmp

Filesize
3.1MB

Download
memory/2732-122-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-121-0x0000000076F80000-0x000000007710E000-memory.dmp

Filesize
1.6MB

Download
memory/3476-213-0x00000000013C0000-0x00000000016DF000-memory.dmp

Filesize
3.1MB

Download
memory/3476-255-0x0000000000DA0000-0x0000000000DE4000-memory.dmp

Filesize
272KB

Download
memory/3476-257-0x00000000013C0000-0x00000000016DF000-memory.dmp

Filesize
3.1MB

Download
memory/3476-258-0x00000000013C0000-0x00000000016DF000-memory.dmp

Filesize
3.1MB

Download
memory/3476-259-0x0000000000DA0000-0x0000000000DE4000-memory.dmp

Filesize
272KB

Download
memory/3476-260-0x00000000013C0000-0x00000000016DF000-memory.dmp

Filesize
3.1MB

Download