a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d

Analysis

max time kernel
48s
max time network
148s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
03-10-2022 00:24

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General

Target

a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
Size

1.8MB
MD5

0d4f32374d4c70dac19a26071a5f50d6
SHA1

b358e0653e58c561ed28c24c1d5012a63b414fef
SHA256

a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d
SHA512

e144301ba05c15fa2f3757d0878715f0ab9f6d207f7064c6c96d3b10da8c165e49dded4677101060267458c2f7f522fede382121e5d07d97056829cd2e207860
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__	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
3972	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	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.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	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
1980	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
1980	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
3972	oobeldr.exe
3972	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
1988	schtasks.exe
4008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1980	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
1980	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
1980	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
1980	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
3972	oobeldr.exe
3972	oobeldr.exe
3972	oobeldr.exe
3972	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1988	1980	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe	67
PID 1980 wrote to memory of 1988	1980	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe	67
PID 1980 wrote to memory of 1988	1980	a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe	67
PID 3972 wrote to memory of 4008	3972	oobeldr.exe	69
PID 3972 wrote to memory of 4008	3972	oobeldr.exe	69
PID 3972 wrote to memory of 4008	3972	oobeldr.exe	69

C:\Users\Admin\AppData\Local\Temp\a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.exe
"C:\Users\Admin\AppData\Local\Temp\a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d.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:1980
- 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:1988

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:3972
- 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:4008

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
0d4f32374d4c70dac19a26071a5f50d6

SHA1
b358e0653e58c561ed28c24c1d5012a63b414fef

SHA256
a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d

SHA512
e144301ba05c15fa2f3757d0878715f0ab9f6d207f7064c6c96d3b10da8c165e49dded4677101060267458c2f7f522fede382121e5d07d97056829cd2e207860

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

Filesize
1.8MB

MD5
0d4f32374d4c70dac19a26071a5f50d6

SHA1
b358e0653e58c561ed28c24c1d5012a63b414fef

SHA256
a27f90d9b5454cff8b80b16cc47acfa0765a9e0a6daaded72f3437a5b64afd6d

SHA512
e144301ba05c15fa2f3757d0878715f0ab9f6d207f7064c6c96d3b10da8c165e49dded4677101060267458c2f7f522fede382121e5d07d97056829cd2e207860

Download Submit
memory/1980-164-0x0000000000131000-0x0000000000133000-memory.dmp

Filesize
8KB

Download
memory/1980-149-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-124-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-125-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-126-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-127-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-128-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-129-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-130-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-132-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-133-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-134-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-135-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-136-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-137-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-120-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-139-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-140-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-141-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-142-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-131-0x0000000000130000-0x000000000044F000-memory.dmp

Filesize
3.1MB

Download
memory/1980-144-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-143-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-146-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-147-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-187-0x0000000002CD0000-0x0000000002D14000-memory.dmp

Filesize
272KB

Download
memory/1980-150-0x0000000000130000-0x000000000044F000-memory.dmp

Filesize
3.1MB

Download
memory/1980-151-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-153-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-154-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-156-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-158-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-160-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-159-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-162-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-161-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-138-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-166-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-123-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-186-0x0000000000130000-0x000000000044F000-memory.dmp

Filesize
3.1MB

Download
memory/1980-165-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-163-0x0000000000131000-0x0000000000133000-memory.dmp

Filesize
8KB

Download
memory/1980-157-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-121-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-122-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-145-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-148-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-152-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1980-155-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-183-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-175-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-184-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-182-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-179-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-177-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-176-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-174-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-172-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-170-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-181-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-180-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-178-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-185-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-173-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-171-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-169-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/1988-168-0x0000000077460000-0x00000000775EE000-memory.dmp

Filesize
1.6MB

Download
memory/3972-231-0x0000000001150000-0x000000000146F000-memory.dmp

Filesize
3.1MB

Download
memory/3972-232-0x0000000000E40000-0x0000000000E84000-memory.dmp

Filesize
272KB

Download
memory/3972-237-0x0000000001150000-0x000000000146F000-memory.dmp

Filesize
3.1MB

Download
memory/3972-238-0x0000000001150000-0x000000000146F000-memory.dmp

Filesize
3.1MB

Download
memory/3972-256-0x0000000001150000-0x000000000146F000-memory.dmp

Filesize
3.1MB

Download
memory/3972-257-0x0000000000E40000-0x0000000000E84000-memory.dmp

Filesize
272KB

Download