42ca73a2f64b86c9e59cc795eaf28450bdfd1149a35b052e2a8baf1b47e82204

Analysis

max time kernel
142s
max time network
122s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
14-05-2024 14:05

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General

Target

$1/Outbreak/Pigeon_39.exe
Size

6.8MB
MD5

f7958823d5a3c0a2df7974adde4028d0
SHA1

bb4e28ce33d1d1346c9916593d2760596eec0cc2
SHA256

72a310904f5c29c586eceff7a2442dc50e82c5a0673ac62e07c793333803f0e5
SHA512

5d65bf146d76f0d24599e95d6b222125d717bf6a94c58034cb09a96380b92b6a672a54987acebca83ba1f9dc78ab1947fa3c9cc5856f08a0042673b78fcf9171
SSDEEP

196608:g/xq66y1wQplnbnZVztYtArKIF20GsbYr9vyKHRo:wx1i29bnZYtAWmeyqo

Score

9^/10

evasion

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:

Pigeon_39.exeRealtekSb.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Pigeon_39.exe
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ RealtekSb.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Pigeon_39.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	RealtekSb.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:

RealtekSb.exePigeon_39.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	RealtekSb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Pigeon_39.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Pigeon_39.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	RealtekSb.exe

Drops startup file 1 IoCs

Processes:

Pigeon_39.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RealtekSb.lnk Pigeon_39.exe
Executes dropped EXE 1 IoCs

Processes:

RealtekSb.exe

pid process

2832 RealtekSb.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RealtekSb.lnk	Pigeon_39.exe

pid	process
2832	RealtekSb.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

Pigeon_39.exeRealtekSb.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Wine	Pigeon_39.exe
Key opened	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Wine	RealtekSb.exe

Loads dropped DLL 2 IoCs

Processes:

Pigeon_39.exe

pid process

1640 Pigeon_39.exe
1640 Pigeon_39.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

Pigeon_39.exeRealtekSb.exe

pid process

1640 Pigeon_39.exe
2832 RealtekSb.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

RealtekSb.exe

pid process

2832 RealtekSb.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Pigeon_39.exeRealtekSb.exe

pid process

1640 Pigeon_39.exe
2832 RealtekSb.exe

pid	process
1640	Pigeon_39.exe
1640	Pigeon_39.exe

pid	process
1640	Pigeon_39.exe
2832	RealtekSb.exe

pid	process
2832	RealtekSb.exe

pid	process
1640	Pigeon_39.exe
2832	RealtekSb.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

Pigeon_39.exe

description	pid	process	target process
PID 1640 wrote to memory of 2832	1640	Pigeon_39.exe	RealtekSb.exe
PID 1640 wrote to memory of 2832	1640	Pigeon_39.exe	RealtekSb.exe
PID 1640 wrote to memory of 2832	1640	Pigeon_39.exe	RealtekSb.exe
PID 1640 wrote to memory of 2832	1640	Pigeon_39.exe	RealtekSb.exe
PID 1640 wrote to memory of 2832	1640	Pigeon_39.exe	RealtekSb.exe
PID 1640 wrote to memory of 2832	1640	Pigeon_39.exe	RealtekSb.exe
PID 1640 wrote to memory of 2832	1640	Pigeon_39.exe	RealtekSb.exe

C:\Users\Admin\AppData\Local\Temp\$1\Outbreak\Pigeon_39.exe
"C:\Users\Admin\AppData\Local\Temp\$1\Outbreak\Pigeon_39.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Drops startup file
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1640

C:\Users\Admin\AppData\Roaming\Realtek Sound Blaster\RealtekSb.exe
"C:\Users\Admin\AppData\Roaming\Realtek Sound Blaster\RealtekSb.exe"
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
PID:2832

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\Users\Admin\AppData\Roaming\Realtek Sound Blaster\RealtekSb.exe
Filesize
6.8MB

MD5
f7958823d5a3c0a2df7974adde4028d0

SHA1
bb4e28ce33d1d1346c9916593d2760596eec0cc2

SHA256
72a310904f5c29c586eceff7a2442dc50e82c5a0673ac62e07c793333803f0e5

SHA512
5d65bf146d76f0d24599e95d6b222125d717bf6a94c58034cb09a96380b92b6a672a54987acebca83ba1f9dc78ab1947fa3c9cc5856f08a0042673b78fcf9171

Download Submit
memory/1640-0-0x00000000002D0000-0x0000000000F16000-memory.dmp

Filesize
12.3MB

Download
memory/1640-1-0x00000000770A0000-0x00000000770A2000-memory.dmp

Filesize
8KB

Download
memory/1640-3-0x00000000002D1000-0x00000000002E0000-memory.dmp

Filesize
60KB

Download
memory/1640-4-0x00000000002D0000-0x0000000000F16000-memory.dmp

Filesize
12.3MB

Download
memory/1640-9-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/1640-16-0x0000000003FB0000-0x0000000004BF6000-memory.dmp

Filesize
12.3MB

Download
memory/1640-15-0x00000000002D0000-0x0000000000F16000-memory.dmp

Filesize
12.3MB

Download
memory/2832-17-0x00000000001D0000-0x0000000000E16000-memory.dmp

Filesize
12.3MB

Download
memory/2832-18-0x00000000001D0000-0x0000000000E16000-memory.dmp

Filesize
12.3MB

Download
memory/2832-19-0x00000000001D0000-0x0000000000E16000-memory.dmp

Filesize
12.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads