975f183d250f207e1d7cbded8e376e965aaadde3374a829d946cbaa37d83e896

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 05:29

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General

Target

2024-02-12_24e3101e198f61edc4622908ef23715c_cryptolocker.exe
Size

44KB
MD5

24e3101e198f61edc4622908ef23715c
SHA1

2e84596bcbaafb0ac0ce144ec115cb0783b1b37c
SHA256

975f183d250f207e1d7cbded8e376e965aaadde3374a829d946cbaa37d83e896
SHA512

6b46781b95593bc307a6466bff9ab1f2705dd4ddeb633f04463f24ad3f088191afe9cf50f8bd46ce63ef81bbe1e87ee0b8597457ed2e2034a2f5a8469869e601
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+My3:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1220-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012261-11.dat	CryptoLocker_rule2
behavioral1/memory/1220-13-0x0000000001F30000-0x0000000001F3B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1220-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2704-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1220-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012261-11.dat	CryptoLocker_set1
behavioral1/memory/1220-13-0x0000000001F30000-0x0000000001F3B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1220-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2704-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2704	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1220	2024-02-12_24e3101e198f61edc4622908ef23715c_cryptolocker.exe

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 1220 wrote to memory of 2704	1220	2024-02-12_24e3101e198f61edc4622908ef23715c_cryptolocker.exe	28
PID 1220 wrote to memory of 2704	1220	2024-02-12_24e3101e198f61edc4622908ef23715c_cryptolocker.exe	28
PID 1220 wrote to memory of 2704	1220	2024-02-12_24e3101e198f61edc4622908ef23715c_cryptolocker.exe	28
PID 1220 wrote to memory of 2704	1220	2024-02-12_24e3101e198f61edc4622908ef23715c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_24e3101e198f61edc4622908ef23715c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_24e3101e198f61edc4622908ef23715c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2704

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
44KB

MD5
7cbd0fca0663d158c88a0585853c4320

SHA1
0719e1feec7da31029b9bccbea145a8008602622

SHA256
f3c28803e002627f3cc2fb2f8efa9450b0ace2f4244371c00c0d889680d29e8c

SHA512
674c918033fb57f91bf19085c7681b5809b111339f80b172cacc8dbb3f9d0a8a3add47e22928c7727c1cdcf17c4a3caf5cce7f06c98ad485fa8b5534d952c130

Download Submit
memory/1220-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1220-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1220-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1220-3-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1220-13-0x0000000001F30000-0x0000000001F3B000-memory.dmp

Filesize
44KB

Download
memory/1220-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2704-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2704-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2704-20-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download