55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955

Analysis

max time kernel
144s
max time network
146s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
11-09-2022 15:33

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General

Target

55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe
Size

1.8MB
MD5

9daa789a33a25513b01dfccf69087ba4
SHA1

4ddec7e78aa10a96c814e61b2e90f5b1d39eb107
SHA256

55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955
SHA512

9d7687ab8c3b62dfd62099aa3a26c3a09e9d5b90d78534fa91907dd24c0d197cf09791476da03a98fe1ecbc955f570051737027f6d2001f95c419f5b23ea33c7
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__	oobeldr.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe

Executes dropped EXE 1 IoCs

pid	Process
3332	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	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.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	oobeldr.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2500	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe
2500	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe
3332	oobeldr.exe
3332	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
4880	schtasks.exe
1356	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2500	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe
2500	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe
2500	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe
2500	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe
3332	oobeldr.exe
3332	oobeldr.exe
3332	oobeldr.exe
3332	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 4880	2500	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe	66
PID 2500 wrote to memory of 4880	2500	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe	66
PID 2500 wrote to memory of 4880	2500	55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe	66
PID 3332 wrote to memory of 1356	3332	oobeldr.exe	69
PID 3332 wrote to memory of 1356	3332	oobeldr.exe	69
PID 3332 wrote to memory of 1356	3332	oobeldr.exe	69

C:\Users\Admin\AppData\Local\Temp\55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.exe
"C:\Users\Admin\AppData\Local\Temp\55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955.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:2500
- 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:4880

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:3332
- 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:1356

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
9daa789a33a25513b01dfccf69087ba4

SHA1
4ddec7e78aa10a96c814e61b2e90f5b1d39eb107

SHA256
55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955

SHA512
9d7687ab8c3b62dfd62099aa3a26c3a09e9d5b90d78534fa91907dd24c0d197cf09791476da03a98fe1ecbc955f570051737027f6d2001f95c419f5b23ea33c7

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

Filesize
1.8MB

MD5
9daa789a33a25513b01dfccf69087ba4

SHA1
4ddec7e78aa10a96c814e61b2e90f5b1d39eb107

SHA256
55e3bb6c20ea788186e1d8855bcfc442586e7cdfa5fc2590ca94ec413ec7f955

SHA512
9d7687ab8c3b62dfd62099aa3a26c3a09e9d5b90d78534fa91907dd24c0d197cf09791476da03a98fe1ecbc955f570051737027f6d2001f95c419f5b23ea33c7

Download Submit
memory/1356-237-0x0000000000000000-mapping.dmp

Download
memory/2500-159-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-151-0x0000000001020000-0x000000000133F000-memory.dmp

Filesize
3.1MB

Download
memory/2500-124-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-125-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-126-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-127-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-129-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-128-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-130-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-131-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-132-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-133-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-135-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-136-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-138-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-137-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-139-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-134-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-140-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-141-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-142-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-143-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-144-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-145-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-146-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-162-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-148-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-149-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-150-0x0000000000FD0000-0x0000000001014000-memory.dmp

Filesize
272KB

Download
memory/2500-161-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-152-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-153-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-155-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-154-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-156-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-157-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-158-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-123-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-121-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-160-0x0000000001020000-0x000000000133F000-memory.dmp

Filesize
3.1MB

Download
memory/2500-147-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-163-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-164-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-165-0x0000000001021000-0x0000000001023000-memory.dmp

Filesize
8KB

Download
memory/2500-166-0x0000000001021000-0x0000000001023000-memory.dmp

Filesize
8KB

Download
memory/2500-167-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-168-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/2500-174-0x0000000001020000-0x000000000133F000-memory.dmp

Filesize
3.1MB

Download
memory/2500-189-0x0000000001020000-0x000000000133F000-memory.dmp

Filesize
3.1MB

Download
memory/2500-190-0x0000000000FD0000-0x0000000001014000-memory.dmp

Filesize
272KB

Download
memory/2500-122-0x0000000001020000-0x000000000133F000-memory.dmp

Filesize
3.1MB

Download
memory/2500-120-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/3332-259-0x0000000000D70000-0x0000000000EBA000-memory.dmp

Filesize
1.3MB

Download
memory/3332-258-0x0000000001170000-0x000000000148F000-memory.dmp

Filesize
3.1MB

Download
memory/3332-248-0x0000000001170000-0x000000000148F000-memory.dmp

Filesize
3.1MB

Download
memory/3332-245-0x0000000000D70000-0x0000000000EBA000-memory.dmp

Filesize
1.3MB

Download
memory/3332-260-0x0000000001170000-0x000000000148F000-memory.dmp

Filesize
3.1MB

Download
memory/3332-196-0x0000000001170000-0x000000000148F000-memory.dmp

Filesize
3.1MB

Download
memory/4880-185-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-178-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-179-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-180-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-181-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-182-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-183-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-177-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-176-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-175-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-172-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-173-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-171-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-170-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-169-0x0000000000000000-mapping.dmp

Download
memory/4880-184-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-186-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-187-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download
memory/4880-188-0x0000000077A60000-0x0000000077BEE000-memory.dmp

Filesize
1.6MB

Download