d0734449bce81a136eb3318af878815aeb56c9460a316e3d1fa1897b8c3a78c5

Analysis

max time kernel
144s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 19:25

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General

Target

2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe
Size

57KB
MD5

22d72ade895345f95f8ad39e4f31ab83
SHA1

509fa90949890c94c0456666e092e7e257bad0fb
SHA256

d0734449bce81a136eb3318af878815aeb56c9460a316e3d1fa1897b8c3a78c5
SHA512

1cd75d40597b585cc65065a334efc750c266ed0780902a61444d5049e22a3170115f43e95c53b6d3ac99fa497c709180b3c72e4c86a4905bc42c00b165f86ee7
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7/e6f:6j+1NMOtEvwDpjr8oxExe6f

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1656-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2152-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2152-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1656-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2152-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2152-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1656-8-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2152-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2152-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2152 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe

pid process

1656 2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2152	misid.exe

pid	process
1656	2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe

description	pid	process	target process
PID 1656 wrote to memory of 2152	1656	2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe	misid.exe
PID 1656 wrote to memory of 2152	1656	2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe	misid.exe
PID 1656 wrote to memory of 2152	1656	2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe	misid.exe
PID 1656 wrote to memory of 2152	1656	2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_22d72ade895345f95f8ad39e4f31ab83_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2152

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\misid.exe

Filesize
57KB

MD5
dbf6216307d01038e8eec3ee655fed43

SHA1
2ee71873a817c7ce8974b0c645848c0e53d7d1e6

SHA256
6e0420b3a5b07d09c7d9c668e7ee2548663d593ffbc7e57aa9e64652c6889889

SHA512
94a462f94025c1fee2774bcb535987ad6c9669da852f7da2340564552a67f7a03233703b200ba32d721fb85d893028ca3422639d72b2804949208174fc76970e

Download Submit
memory/1656-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1656-9-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1656-8-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1656-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1656-14-0x0000000002170000-0x000000000217F000-memory.dmp

Filesize
60KB

Download
memory/2152-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2152-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2152-25-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2152-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download