cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45

Analysis

max time kernel
61s
max time network
80s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
22/09/2022, 12:01

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General

Target

cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe
Size

1.8MB
MD5

13a86925540d6af28646e1080ce6185f
SHA1

8a683708a06390e00d6574ac918e1f32da80c426
SHA256

cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45
SHA512

f62071d77f1c20ab86f67b09cfea8da32fd63c1c9f0f04fb21b155112bc8dfc906f34ed1a2644e5b37a8cffbef92375a8e925ac194c2321d09f839f726dfd539
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__	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe

Executes dropped EXE 1 IoCs

pid	Process
3420	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	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.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	oobeldr.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2676	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe
2676	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe
3420	oobeldr.exe
3420	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
2140	schtasks.exe
4124	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2676	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe
2676	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe
2676	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe
2676	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe
3420	oobeldr.exe
3420	oobeldr.exe
3420	oobeldr.exe
3420	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2140	2676	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe	66
PID 2676 wrote to memory of 2140	2676	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe	66
PID 2676 wrote to memory of 2140	2676	cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe	66
PID 3420 wrote to memory of 4124	3420	oobeldr.exe	69
PID 3420 wrote to memory of 4124	3420	oobeldr.exe	69
PID 3420 wrote to memory of 4124	3420	oobeldr.exe	69

C:\Users\Admin\AppData\Local\Temp\cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.exe
"C:\Users\Admin\AppData\Local\Temp\cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45.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:2676
- 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:2140

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:3420
- 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:4124

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
13a86925540d6af28646e1080ce6185f

SHA1
8a683708a06390e00d6574ac918e1f32da80c426

SHA256
cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45

SHA512
f62071d77f1c20ab86f67b09cfea8da32fd63c1c9f0f04fb21b155112bc8dfc906f34ed1a2644e5b37a8cffbef92375a8e925ac194c2321d09f839f726dfd539

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

Filesize
1.8MB

MD5
13a86925540d6af28646e1080ce6185f

SHA1
8a683708a06390e00d6574ac918e1f32da80c426

SHA256
cfa6db5df045db2a07a95157f163e920d408a3103612dc3d29feb27ab2021a45

SHA512
f62071d77f1c20ab86f67b09cfea8da32fd63c1c9f0f04fb21b155112bc8dfc906f34ed1a2644e5b37a8cffbef92375a8e925ac194c2321d09f839f726dfd539

Download Submit
memory/2140-176-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-183-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-182-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-181-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-180-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-179-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-178-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-177-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-175-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-174-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-173-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-172-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-171-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-170-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-169-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-168-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-167-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2140-166-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-135-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-136-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-138-0x0000000001270000-0x00000000012B4000-memory.dmp

Filesize
272KB

Download
memory/2676-139-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-140-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-141-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-142-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-143-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-144-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-145-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-146-0x0000000001370000-0x000000000168F000-memory.dmp

Filesize
3.1MB

Download
memory/2676-147-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-148-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-149-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-150-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-151-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-152-0x0000000001370000-0x000000000168F000-memory.dmp

Filesize
3.1MB

Download
memory/2676-153-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-154-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-155-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-156-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-157-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-158-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-159-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-160-0x0000000001370000-0x000000000168F000-memory.dmp

Filesize
3.1MB

Download
memory/2676-161-0x0000000001371000-0x0000000001373000-memory.dmp

Filesize
8KB

Download
memory/2676-163-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-162-0x0000000001371000-0x0000000001373000-memory.dmp

Filesize
8KB

Download
memory/2676-164-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-137-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-115-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-134-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-133-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-132-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-131-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-130-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-129-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-128-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-127-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-126-0x0000000001370000-0x000000000168F000-memory.dmp

Filesize
3.1MB

Download
memory/2676-125-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-124-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-123-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-122-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-121-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-120-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-119-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-118-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-184-0x0000000001370000-0x000000000168F000-memory.dmp

Filesize
3.1MB

Download
memory/2676-185-0x0000000001270000-0x00000000012B4000-memory.dmp

Filesize
272KB

Download
memory/2676-117-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/2676-116-0x0000000076EA0000-0x000000007702E000-memory.dmp

Filesize
1.6MB

Download
memory/3420-191-0x0000000000370000-0x000000000068F000-memory.dmp

Filesize
3.1MB

Download
memory/3420-251-0x0000000000B00000-0x0000000000B44000-memory.dmp

Filesize
272KB

Download
memory/3420-252-0x0000000000370000-0x000000000068F000-memory.dmp

Filesize
3.1MB

Download
memory/3420-253-0x0000000000370000-0x000000000068F000-memory.dmp

Filesize
3.1MB

Download
memory/3420-254-0x0000000000B00000-0x0000000000B44000-memory.dmp

Filesize
272KB

Download
memory/3420-255-0x0000000000370000-0x000000000068F000-memory.dmp

Filesize
3.1MB

Download