1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8

General

Target

1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
Size

1.8MB
MD5

e4df8d6ecb435dc88efd16702e7efe88
SHA1

a52bee4e82ed627c5d18b7afcf7000c47f6a6224
SHA256

1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8
SHA512

42b6bbaf2e764f5222fb20a5cee1aeb1862f180312bfa243c9b41ae3d32b02265adbbad95146964700af522905aa886414313144671974d7cc5afd8fecb8f9eb
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

Processes:

1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exeoobeldr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

Processes:

oobeldr.exe

pid process

3696 oobeldr.exe

pid	process
3696	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

Processes:

1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exeoobeldr.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.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

Processes:

1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exeoobeldr.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exeoobeldr.exe

pid	process
4528	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
4528	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
3696	oobeldr.exe
3696	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

Processes:

schtasks.exeschtasks.exe

pid process

4648 schtasks.exe
4408 schtasks.exe

pid	process
4648	schtasks.exe
4408	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exeoobeldr.exe

pid	process
4528	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
4528	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
4528	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
4528	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
3696	oobeldr.exe
3696	oobeldr.exe
3696	oobeldr.exe
3696	oobeldr.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exeoobeldr.exe

description	pid	process	target process
PID 4528 wrote to memory of 4648	4528	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe	schtasks.exe
PID 4528 wrote to memory of 4648	4528	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe	schtasks.exe
PID 4528 wrote to memory of 4648	4528	1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe	schtasks.exe
PID 3696 wrote to memory of 4408	3696	oobeldr.exe	schtasks.exe
PID 3696 wrote to memory of 4408	3696	oobeldr.exe	schtasks.exe
PID 3696 wrote to memory of 4408	3696	oobeldr.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.exe
"C:\Users\Admin\AppData\Local\Temp\1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8.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:4528

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:4648

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:3696

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:4408

Network

MITRE ATT&CK Matrix ATT&CK 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

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Filesize
1.8MB

MD5
e4df8d6ecb435dc88efd16702e7efe88

SHA1
a52bee4e82ed627c5d18b7afcf7000c47f6a6224

SHA256
1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8

SHA512
42b6bbaf2e764f5222fb20a5cee1aeb1862f180312bfa243c9b41ae3d32b02265adbbad95146964700af522905aa886414313144671974d7cc5afd8fecb8f9eb

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Filesize
1.8MB

MD5
e4df8d6ecb435dc88efd16702e7efe88

SHA1
a52bee4e82ed627c5d18b7afcf7000c47f6a6224

SHA256
1bfb354637417a53201e4af621cc34bf2113b0bce97d70dac9cf68a2940da6c8

SHA512
42b6bbaf2e764f5222fb20a5cee1aeb1862f180312bfa243c9b41ae3d32b02265adbbad95146964700af522905aa886414313144671974d7cc5afd8fecb8f9eb

Download Submit
memory/3696-155-0x00000000014B0000-0x00000000014F4000-memory.dmp

Filesize
272KB

Download
memory/3696-154-0x0000000000C50000-0x0000000000F6F000-memory.dmp

Filesize
3.1MB

Download
memory/3696-153-0x0000000077380000-0x0000000077523000-memory.dmp

Filesize
1.6MB

Download
memory/3696-152-0x00000000014B0000-0x00000000014F4000-memory.dmp

Filesize
272KB

Download
memory/3696-151-0x0000000000C50000-0x0000000000F6F000-memory.dmp

Filesize
3.1MB

Download
memory/3696-149-0x0000000000C51000-0x0000000000C53000-memory.dmp

Filesize
8KB

Download
memory/3696-147-0x0000000000C50000-0x0000000000F6F000-memory.dmp

Filesize
3.1MB

Download
memory/4408-150-0x0000000000000000-mapping.dmp

Download
memory/4528-137-0x0000000000CB1000-0x0000000000CB3000-memory.dmp

Filesize
8KB

Download
memory/4528-143-0x00000000008D0000-0x0000000000914000-memory.dmp

Filesize
272KB

Download
memory/4528-144-0x0000000077380000-0x0000000077523000-memory.dmp

Filesize
1.6MB

Download
memory/4528-142-0x0000000000CB0000-0x0000000000FCF000-memory.dmp

Filesize
3.1MB

Download
memory/4528-141-0x0000000077380000-0x0000000077523000-memory.dmp

Filesize
1.6MB

Download
memory/4528-138-0x0000000000CB0000-0x0000000000FCF000-memory.dmp

Filesize
3.1MB

Download
memory/4528-139-0x0000000000CB1000-0x0000000000CB3000-memory.dmp

Filesize
8KB

Download
memory/4528-132-0x0000000000CB0000-0x0000000000FCF000-memory.dmp

Filesize
3.1MB

Download
memory/4528-136-0x0000000000CB0000-0x0000000000FCF000-memory.dmp

Filesize
3.1MB

Download
memory/4528-135-0x0000000000CB0000-0x0000000000FCF000-memory.dmp

Filesize
3.1MB

Download
memory/4528-134-0x0000000000CB0000-0x0000000000FCF000-memory.dmp

Filesize
3.1MB

Download
memory/4528-133-0x00000000008D0000-0x0000000000914000-memory.dmp

Filesize
272KB

Download
memory/4648-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads