bde503b0e68caebb7593087dec18a567226e3fac6c3c801b31310315c21d3ba7

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-11-2024 06:23

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General

Target

2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe
Size

79KB
MD5

bb9859fc2c784247b57fc8dbcf4b6fb3
SHA1

c4a0d2f155a4e782130046d5c45a98902ec976d4
SHA256

bde503b0e68caebb7593087dec18a567226e3fac6c3c801b31310315c21d3ba7
SHA512

11169c3e0479e9c89b0515cb0831321a07cea866955c1b32dacfd0a7d94463b73629be5155f4acab78bfa49aa5d452dd1ceef4418b244d0f424a9974d210b54f
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdxPUxn+0:T6a+rdOOtEvwDpjNtHPK

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2068 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe

pid process

2104 2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe

pid	process
2068	asih.exe

pid	process
2104	2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/2104-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral1/memory/2068-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2104-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2068-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exeasih.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe

description	pid	process	target process
PID 2104 wrote to memory of 2068	2104	2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe	asih.exe
PID 2104 wrote to memory of 2068	2104	2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe	asih.exe
PID 2104 wrote to memory of 2068	2104	2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe	asih.exe
PID 2104 wrote to memory of 2068	2104	2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-02_bb9859fc2c784247b57fc8dbcf4b6fb3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2104

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
79KB

MD5
163193d539099903a234bb987e2a087e

SHA1
9184997f1b2f1d028da4677ea9ada61d70df236e

SHA256
3fd60e180cc675f9624dd7ead56dad35e53f3d200746fca8b89bc5bc5f2ae075

SHA512
30177e9ccfc39500c9c7a944149263724ec3a07b02edbd05d23c3d1c16d1e2974325088dee2227ddb0368f265bbf9be2d4c81c291a0782ae8fe13ccc941f8f7c

Download Submit
memory/2068-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2068-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2068-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2104-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2104-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2104-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2104-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2104-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2104-14-0x0000000001DB0000-0x0000000001DC0000-memory.dmp

Filesize
64KB

Download