4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0

General

Target

4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe
Size

624KB
MD5

39bbdfaa9beb171947dc0b8e6d92a8ec
SHA1

0270b1e5734950f7021ac48c9c393eca8cb6c5e3
SHA256

4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0
SHA512

35d876c932e0350a06c9c4121c1043517823c227bc16ad8faba1a62ab968b6b099ee1b2938e7a565ec3839493f16633a79b6845dcd7e7c1de3ff685e4de3feee
SSDEEP

12288:SLJZY03tDoCSxs8nU39RTCClqh7VIYMX0y8V/OC+DQ:mY034hnm9R+97K5EpVmC+DQ

Score

9^/10

evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe
Executes dropped EXE 1 IoCs

Processes:

s4563.exe

pid process

4508 s4563.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe

pid	process
4508	s4563.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

s4563.exe

description ioc process

File created C:\Windows\assembly\Desktop.ini s4563.exe
File opened for modification C:\Windows\assembly\Desktop.ini s4563.exe

description	ioc	process
File created	C:\Windows\assembly\Desktop.ini	s4563.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s4563.exe

Drops file in Windows directory 3 IoCs

Processes:

s4563.exe

description	ioc	process
File opened for modification	C:\Windows\assembly\Desktop.ini	s4563.exe
File opened for modification	C:\Windows\assembly	s4563.exe
File created	C:\Windows\assembly\Desktop.ini	s4563.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

s4563.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81	s4563.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81\Blob = 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	s4563.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81\Blob = 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	s4563.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exes4563.exe

pid	process
1136	4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe
1136	4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe
4508	s4563.exe
4508	s4563.exe
4508	s4563.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

s4563.exe

description pid process

Token: SeDebugPrivilege 4508 s4563.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

s4563.exe

pid process

4508 s4563.exe
4508 s4563.exe

description	pid	process
Token: SeDebugPrivilege	4508	s4563.exe

pid	process
4508	s4563.exe
4508	s4563.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe

description	pid	process	target process
PID 1136 wrote to memory of 4508	1136	4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe	s4563.exe
PID 1136 wrote to memory of 4508	1136	4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe	s4563.exe

C:\Users\Admin\AppData\Local\Temp\4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe
"C:\Users\Admin\AppData\Local\Temp\4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1136

C:\Users\Admin\AppData\Local\Temp\n4563\s4563.exe
"C:\Users\Admin\AppData\Local\Temp\n4563\s4563.exe" 8f0a33353566e077fb39457aWfpey8iIHDxUU8Uc9pymlY59rylI6p2nAQZAefzEHHMKV5Q7kTlQhhHNNJy8go6nag4WYfR6Mdd3cyqE9EcG4w2C5rLlcLnC+kNKqLFywLgYJW6DDe0cezzedJQ+EH94aVebGl6cPE5+opeEhlDeYIX62vynxRnipOI= /v "C:\Users\Admin\AppData\Local\Temp\4b861b02756aa1b6c9ad5b3b399ad2814944126ab78fb5c36f288a49c05dbec0.exe"
2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\n4563\s4563.exe
Filesize
350KB

MD5
60f9fa6a5debd2cd96317dabe147c68b

SHA1
8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

SHA256
005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

SHA512
1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

Download Submit
C:\Users\Admin\AppData\Local\Temp\n4563\s4563.exe
Filesize
350KB

MD5
60f9fa6a5debd2cd96317dabe147c68b

SHA1
8f82a7369b15d5b7f552db5e4e9a65b01c41e8d5

SHA256
005d00feddcafbd28a38166745b6a42b238614cf3973f82db4be702064856aae

SHA512
1124695d1da7cbc28ec3fe80f0b9a4384948f9a707c0ad250d1999f14171e501cabc70792fc8adb6cbfbcf1504634ee3520aec436992a5d46f6319d0418b6fd6

Download Submit
memory/4508-132-0x0000000000000000-mapping.dmp

Download
memory/4508-135-0x00007FFF512E0000-0x00007FFF51D16000-memory.dmp

Filesize
10.2MB

Download
memory/4508-136-0x00000000007EA000-0x00000000007EF000-memory.dmp

Filesize
20KB

Download
memory/4508-137-0x00000000007EA000-0x00000000007EF000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads