1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72

General

Target

1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
Size

1.8MB
MD5

40ca3e4641cc4264afd99289964a96c0
SHA1

ee251470638d9cd2bc5d4360d1f052530b0bcb58
SHA256

1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72
SHA512

513267e7b65c1c5005a04acdcc7127b0d1051fd7432247e643b2e0f260aa7741537626054ad972ae9d9b2d9fca86f1b4ed7e437db4d941eedd066f873cf5da9c
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__	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
4864	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	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	oobeldr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	oobeldr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.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	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4828	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
4828	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
4864	oobeldr.exe
4864	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
1356	schtasks.exe
396	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4828	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
4828	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
4828	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
4828	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
4864	oobeldr.exe
4864	oobeldr.exe
4864	oobeldr.exe
4864	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4828 wrote to memory of 1356	4828	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe	83
PID 4828 wrote to memory of 1356	4828	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe	83
PID 4828 wrote to memory of 1356	4828	1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe	83
PID 4864 wrote to memory of 396	4864	oobeldr.exe	99
PID 4864 wrote to memory of 396	4864	oobeldr.exe	99
PID 4864 wrote to memory of 396	4864	oobeldr.exe	99

C:\Users\Admin\AppData\Local\Temp\1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.exe
"C:\Users\Admin\AppData\Local\Temp\1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72.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:4828
- 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

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:4864
- 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:396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1.8MB

MD5
40ca3e4641cc4264afd99289964a96c0

SHA1
ee251470638d9cd2bc5d4360d1f052530b0bcb58

SHA256
1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72

SHA512
513267e7b65c1c5005a04acdcc7127b0d1051fd7432247e643b2e0f260aa7741537626054ad972ae9d9b2d9fca86f1b4ed7e437db4d941eedd066f873cf5da9c

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

Filesize
1.8MB

MD5
40ca3e4641cc4264afd99289964a96c0

SHA1
ee251470638d9cd2bc5d4360d1f052530b0bcb58

SHA256
1cdf1fc527c7d244542942a09d9fdbf29b7f099aa6d70f31b7322163cbf65a72

SHA512
513267e7b65c1c5005a04acdcc7127b0d1051fd7432247e643b2e0f260aa7741537626054ad972ae9d9b2d9fca86f1b4ed7e437db4d941eedd066f873cf5da9c

Download Submit
memory/4828-144-0x0000000002EA0000-0x0000000002EE4000-memory.dmp

Filesize
272KB

Download
memory/4828-133-0x00000000002B0000-0x00000000005CF000-memory.dmp

Filesize
3.1MB

Download
memory/4828-139-0x0000000077560000-0x0000000077703000-memory.dmp

Filesize
1.6MB

Download
memory/4828-138-0x00000000002B1000-0x00000000002B3000-memory.dmp

Filesize
8KB

Download
memory/4828-140-0x00000000002B1000-0x00000000002B3000-memory.dmp

Filesize
8KB

Download
memory/4828-136-0x00000000002B0000-0x00000000005CF000-memory.dmp

Filesize
3.1MB

Download
memory/4828-142-0x00000000002B0000-0x00000000005CF000-memory.dmp

Filesize
3.1MB

Download
memory/4828-143-0x0000000077560000-0x0000000077703000-memory.dmp

Filesize
1.6MB

Download
memory/4828-132-0x00000000002B0000-0x00000000005CF000-memory.dmp

Filesize
3.1MB

Download
memory/4828-135-0x00000000002B0000-0x00000000005CF000-memory.dmp

Filesize
3.1MB

Download
memory/4828-134-0x0000000002EA0000-0x0000000002EE4000-memory.dmp

Filesize
272KB

Download
memory/4828-137-0x00000000002B0000-0x00000000005CF000-memory.dmp

Filesize
3.1MB

Download
memory/4864-147-0x00000000002F0000-0x000000000060F000-memory.dmp

Filesize
3.1MB

Download
memory/4864-149-0x00000000002F0000-0x000000000060F000-memory.dmp

Filesize
3.1MB

Download
memory/4864-151-0x00000000002F1000-0x00000000002F3000-memory.dmp

Filesize
8KB

Download
memory/4864-148-0x00000000028F0000-0x0000000002934000-memory.dmp

Filesize
272KB

Download
memory/4864-153-0x00000000002F0000-0x000000000060F000-memory.dmp

Filesize
3.1MB

Download
memory/4864-154-0x0000000077560000-0x0000000077703000-memory.dmp

Filesize
1.6MB

Download
memory/4864-155-0x00000000002F0000-0x000000000060F000-memory.dmp

Filesize
3.1MB

Download
memory/4864-156-0x00000000028F0000-0x0000000002934000-memory.dmp

Filesize
272KB

Download
memory/4864-157-0x00000000002F0000-0x000000000060F000-memory.dmp

Filesize
3.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads