7f3280556b4ea8127a2972b727cf900c60d9500b47b3c44c484ce379b8462bc0

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
14/02/2024, 03:07

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General

Target

2024-02-14_f59a15fee6b839438ea3c3e6d6256bee_cryptolocker.exe
Size

44KB
MD5

f59a15fee6b839438ea3c3e6d6256bee
SHA1

171269989dab3a515aefc9f9e50953d732369a52
SHA256

7f3280556b4ea8127a2972b727cf900c60d9500b47b3c44c484ce379b8462bc0
SHA512

05aa56124d117f1d79ca0ced7838113f924b1cf9a090564e5447f65eeb37872b121fff8e4b6d4847d9d564783a0ffdb4ab5db9a89960472f499cfe0ab483d9e9
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS5p:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012222-24.dat	CryptoLocker_rule2
behavioral1/memory/2488-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1372-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1372-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012222-24.dat	CryptoLocker_set1
behavioral1/memory/2488-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1372-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1372-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2488	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1372	2024-02-14_f59a15fee6b839438ea3c3e6d6256bee_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 1372 wrote to memory of 2488	1372	2024-02-14_f59a15fee6b839438ea3c3e6d6256bee_cryptolocker.exe	1
PID 1372 wrote to memory of 2488	1372	2024-02-14_f59a15fee6b839438ea3c3e6d6256bee_cryptolocker.exe	1
PID 1372 wrote to memory of 2488	1372	2024-02-14_f59a15fee6b839438ea3c3e6d6256bee_cryptolocker.exe	1
PID 1372 wrote to memory of 2488	1372	2024-02-14_f59a15fee6b839438ea3c3e6d6256bee_cryptolocker.exe	1

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
1⤵
- Executes dropped EXE
PID:2488

C:\Users\Admin\AppData\Local\Temp\2024-02-14_f59a15fee6b839438ea3c3e6d6256bee_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_f59a15fee6b839438ea3c3e6d6256bee_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1372

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
44KB

MD5
ce96ed0fd4a55be5e41fc2bd78abb217

SHA1
1f3dc80885d19e303d6c2f03c4f059d5059708b7

SHA256
13418b54e6d29ee432b4b99256a2ecfd73cc9844d61544411f9d358b630ef982

SHA512
fea518f3993d9e7867ab0b2249d897af85fb8c24f68a9938282ee1fc8d7de588713cc22c61867e2be407722a5ddcf3466008f29ea4ba794f9ff07e2782d62842

Download Submit
memory/1372-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1372-6-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1372-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1372-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1372-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2488-25-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2488-18-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2488-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download