42ca73a2f64b86c9e59cc795eaf28450bdfd1149a35b052e2a8baf1b47e82204

Analysis

max time kernel
141s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-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

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	RealtekSb.exe
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

Drops startup file 1 IoCs

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

pid	Process
4916	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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Wine	Pigeon_39.exe
Key opened	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Wine	RealtekSb.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1512	Pigeon_39.exe
4916	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

pid	Process
4916	RealtekSb.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1512	Pigeon_39.exe
1512	Pigeon_39.exe
4916	RealtekSb.exe
4916	RealtekSb.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1512 wrote to memory of 4916	1512	Pigeon_39.exe	89
PID 1512 wrote to memory of 4916	1512	Pigeon_39.exe	89
PID 1512 wrote to memory of 4916	1512	Pigeon_39.exe	89

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
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1512
- 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:4916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

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Downloads

C:\Users\Admin\AppData\Roaming\Realtek Sound Blaster\RealtekSb.exe

Filesize
6.8MB

MD5
f7958823d5a3c0a2df7974adde4028d0

SHA1
bb4e28ce33d1d1346c9916593d2760596eec0cc2

SHA256
72a310904f5c29c586eceff7a2442dc50e82c5a0673ac62e07c793333803f0e5

SHA512
5d65bf146d76f0d24599e95d6b222125d717bf6a94c58034cb09a96380b92b6a672a54987acebca83ba1f9dc78ab1947fa3c9cc5856f08a0042673b78fcf9171

Download Submit
memory/1512-0-0x0000000000170000-0x0000000000DB6000-memory.dmp

Filesize
12.3MB

Download
memory/1512-1-0x0000000077E74000-0x0000000077E76000-memory.dmp

Filesize
8KB

Download
memory/1512-2-0x0000000000171000-0x0000000000180000-memory.dmp

Filesize
60KB

Download
memory/1512-4-0x0000000000170000-0x0000000000DB6000-memory.dmp

Filesize
12.3MB

Download
memory/1512-11-0x0000000000170000-0x0000000000DB6000-memory.dmp

Filesize
12.3MB

Download
memory/4916-12-0x0000000000B80000-0x00000000017C6000-memory.dmp

Filesize
12.3MB

Download
memory/4916-13-0x0000000000B81000-0x0000000000B90000-memory.dmp

Filesize
60KB

Download
memory/4916-14-0x0000000000B80000-0x00000000017C6000-memory.dmp

Filesize
12.3MB

Download