83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322

Analysis

max time kernel
51s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
08/09/2022, 12:19

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General

Target

83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
Size

1.8MB
MD5

36ca85645684f11e50e33b05f9b3c638
SHA1

54b21a88640132a1499c7090ff284db9dfb4fa34
SHA256

83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322
SHA512

914f301c2f7df60d973fd530df0b0d4a326a045656e9c83142293581bbbd36dbd881b7d73ff1e962a552278654ec1312ac4de323583515bf63a370d691ab14ad
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__	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
3968	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	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.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	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
1644	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
1644	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
3968	oobeldr.exe
3968	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
3640	schtasks.exe
1768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1644	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
1644	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
1644	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
1644	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
3968	oobeldr.exe
3968	oobeldr.exe
3968	oobeldr.exe
3968	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 3640	1644	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe	67
PID 1644 wrote to memory of 3640	1644	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe	67
PID 1644 wrote to memory of 3640	1644	83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe	67
PID 3968 wrote to memory of 1768	3968	oobeldr.exe	70
PID 3968 wrote to memory of 1768	3968	oobeldr.exe	70
PID 3968 wrote to memory of 1768	3968	oobeldr.exe	70

C:\Users\Admin\AppData\Local\Temp\83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.exe
"C:\Users\Admin\AppData\Local\Temp\83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322.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:1644
- 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:3640

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:3968
- 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:1768

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
36ca85645684f11e50e33b05f9b3c638

SHA1
54b21a88640132a1499c7090ff284db9dfb4fa34

SHA256
83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322

SHA512
914f301c2f7df60d973fd530df0b0d4a326a045656e9c83142293581bbbd36dbd881b7d73ff1e962a552278654ec1312ac4de323583515bf63a370d691ab14ad

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

Filesize
1.8MB

MD5
36ca85645684f11e50e33b05f9b3c638

SHA1
54b21a88640132a1499c7090ff284db9dfb4fa34

SHA256
83b2b8754a5d7aeb66e16d868e0465f331b19927026a18e676791af912c46322

SHA512
914f301c2f7df60d973fd530df0b0d4a326a045656e9c83142293581bbbd36dbd881b7d73ff1e962a552278654ec1312ac4de323583515bf63a370d691ab14ad

Download Submit
memory/1644-120-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-121-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-122-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-123-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-124-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-125-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-126-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-128-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-127-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/1644-129-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-130-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-131-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-132-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-133-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-134-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-136-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-137-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-138-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-139-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-140-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-141-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-142-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-135-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-143-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-144-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-145-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-146-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-147-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-149-0x0000000000E50000-0x0000000000F9A000-memory.dmp

Filesize
1.3MB

Download
memory/1644-150-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-148-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-151-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/1644-152-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-153-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-154-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-155-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-156-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/1644-157-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-158-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-159-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-160-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-161-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-162-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-163-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-164-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-165-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/1644-166-0x0000000000381000-0x0000000000383000-memory.dmp

Filesize
8KB

Download
memory/1644-167-0x0000000000381000-0x0000000000383000-memory.dmp

Filesize
8KB

Download
memory/1644-168-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-169-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/1644-189-0x0000000000380000-0x000000000069F000-memory.dmp

Filesize
3.1MB

Download
memory/3640-171-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-172-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-173-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-174-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-175-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-176-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-177-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-178-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-179-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-180-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-181-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-182-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-183-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-184-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-185-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-186-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-187-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3640-188-0x0000000077AA0000-0x0000000077C2E000-memory.dmp

Filesize
1.6MB

Download
memory/3968-224-0x0000000000140000-0x000000000045F000-memory.dmp

Filesize
3.1MB

Download
memory/3968-226-0x0000000002470000-0x00000000024B4000-memory.dmp

Filesize
272KB

Download
memory/3968-256-0x0000000000140000-0x000000000045F000-memory.dmp

Filesize
3.1MB

Download
memory/3968-257-0x0000000000140000-0x000000000045F000-memory.dmp

Filesize
3.1MB

Download
memory/3968-258-0x0000000002470000-0x00000000024B4000-memory.dmp

Filesize
272KB

Download
memory/3968-259-0x0000000000140000-0x000000000045F000-memory.dmp

Filesize
3.1MB

Download