3b449b616626d818540a1e2c25a5ebbbc2ed4a50ffaba3e0e25cb6d90c8f67df

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
05-08-2023 11:36

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General

Target

6eb1fb3452ac2b4a3d03655147130bdb_cryptolocker_JC.exe
Size

112KB
MD5

6eb1fb3452ac2b4a3d03655147130bdb
SHA1

221e87cdee827aad6c14c2de027527a276a07308
SHA256

3b449b616626d818540a1e2c25a5ebbbc2ed4a50ffaba3e0e25cb6d90c8f67df
SHA512

97dc2b1fccbdd25fdd08baa8eadcfb964d6f0dbd97a5315a1789c31482ea99c94a0c02947068bc9fa29eb2a95266cf71c29eb8a5e9cafa515f3dbd18eef8d7b0
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp699G/Tg:AnBdOOtEvwDpj6z1

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2488	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	6eb1fb3452ac2b4a3d03655147130bdb_cryptolocker_JC.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2224-54-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2224-69-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0008000000012028-70.dat	upx
behavioral1/files/0x0008000000012028-65.dat	upx
behavioral1/files/0x0008000000012028-79.dat	upx
behavioral1/memory/2488-80-0x0000000000500000-0x000000000050F000-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 2224 wrote to memory of 2488	2224	6eb1fb3452ac2b4a3d03655147130bdb_cryptolocker_JC.exe	28
PID 2224 wrote to memory of 2488	2224	6eb1fb3452ac2b4a3d03655147130bdb_cryptolocker_JC.exe	28
PID 2224 wrote to memory of 2488	2224	6eb1fb3452ac2b4a3d03655147130bdb_cryptolocker_JC.exe	28
PID 2224 wrote to memory of 2488	2224	6eb1fb3452ac2b4a3d03655147130bdb_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\6eb1fb3452ac2b4a3d03655147130bdb_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\6eb1fb3452ac2b4a3d03655147130bdb_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2488

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

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

Filesize
112KB

MD5
953f0dc1c98dcad2555c79fae82452b8

SHA1
586911bd1667179834d679c7fe4fbda112ebba07

SHA256
502fcca696f4d5d4bf3ca05198815c2742dd5387cccd97d69a2b230939a3fd56

SHA512
b41a5cad1d26feb083737d572ebacecc5b02924635d40b35b565df4b2762475af64d458483f831a538ae94dd9b7b8e10c1c4136ee7dc6b1255782951707c667c

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
112KB

MD5
953f0dc1c98dcad2555c79fae82452b8

SHA1
586911bd1667179834d679c7fe4fbda112ebba07

SHA256
502fcca696f4d5d4bf3ca05198815c2742dd5387cccd97d69a2b230939a3fd56

SHA512
b41a5cad1d26feb083737d572ebacecc5b02924635d40b35b565df4b2762475af64d458483f831a538ae94dd9b7b8e10c1c4136ee7dc6b1255782951707c667c

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

Filesize
112KB

MD5
953f0dc1c98dcad2555c79fae82452b8

SHA1
586911bd1667179834d679c7fe4fbda112ebba07

SHA256
502fcca696f4d5d4bf3ca05198815c2742dd5387cccd97d69a2b230939a3fd56

SHA512
b41a5cad1d26feb083737d572ebacecc5b02924635d40b35b565df4b2762475af64d458483f831a538ae94dd9b7b8e10c1c4136ee7dc6b1255782951707c667c

Download Submit
memory/2224-54-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2224-55-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2224-57-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2224-56-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2224-67-0x0000000002480000-0x000000000248F000-memory.dmp

Filesize
60KB

Download
memory/2224-69-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2488-72-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2488-73-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2488-80-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download