52b1e0156ced54010963286b0c50d566c1ba7e367d64c997d503f244924dce5a

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 05:12

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General

Target

202405212d83dcba03b8cc9efa06aa0d35bd1efdcryptolocker.exe
Size

39KB
MD5

2d83dcba03b8cc9efa06aa0d35bd1efd
SHA1

c6a5810c95108563659709cecf8803322e48bd3b
SHA256

52b1e0156ced54010963286b0c50d566c1ba7e367d64c997d503f244924dce5a
SHA512

24b4c4945f9949901a769e61fa0b202e213ac72c93c7eeee89cb063cd0069ddc195a6615adbb6cb354015d185c10297dcca3c60180b1a7025fea0a91eff82b81
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaaUh:qDdFJy3QMOtEvwDpjjWMl7TdaUh

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2556	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2848	202405212d83dcba03b8cc9efa06aa0d35bd1efdcryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2848-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000014120-11.dat	upx
behavioral1/memory/2556-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2848-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2556-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2556	2848	202405212d83dcba03b8cc9efa06aa0d35bd1efdcryptolocker.exe	28
PID 2848 wrote to memory of 2556	2848	202405212d83dcba03b8cc9efa06aa0d35bd1efdcryptolocker.exe	28
PID 2848 wrote to memory of 2556	2848	202405212d83dcba03b8cc9efa06aa0d35bd1efdcryptolocker.exe	28
PID 2848 wrote to memory of 2556	2848	202405212d83dcba03b8cc9efa06aa0d35bd1efdcryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\202405212d83dcba03b8cc9efa06aa0d35bd1efdcryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202405212d83dcba03b8cc9efa06aa0d35bd1efdcryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
39KB

MD5
c1b2b2a12a74ee05c4d68138fdee5ce3

SHA1
64b7376c3f2dbd2655f0e7cca7b94b42d4f1adf6

SHA256
3b329ea96a49f0db837a65b04659bfbc3def8050137532dfbff66e9bac4b6d88

SHA512
8b85bf674217a6091cdb7bdc074dcd49fdf6e83f5cc7a60d3034a350ef66455a3f9492cde686f4266f13317e797ef94003231396f8de70ecb48e495b8b404137

Download Submit
memory/2556-19-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2556-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2556-26-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2556-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2848-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2848-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2848-9-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2848-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2848-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download