ff6c3ba44a85536e14d9a528421d2e512cb159c0102a2d84ad662c063128e678

Analysis

max time kernel
135s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18/04/2024, 12:34

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General

Target

2024-04-18_4ffdc9736ffaf21fae185069ae22f840_cryptolocker.exe
Size

60KB
MD5

4ffdc9736ffaf21fae185069ae22f840
SHA1

eb4a42df98c41f41601ce00e43c1e31db749f472
SHA256

ff6c3ba44a85536e14d9a528421d2e512cb159c0102a2d84ad662c063128e678
SHA512

bba849777abe4e85128e3f833528c783c1ae128bfffa98fa0ceb435957647dc2f489ee0c9893daa95f3a2473a73e64a1902adaabdec4818d020b49932ed4d3f1
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XGP:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001224c-11.dat	CryptoLocker_rule2
behavioral1/memory/2220-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2244-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001224c-11.dat	CryptoLocker_set1
behavioral1/memory/2220-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2244-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2244	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	2024-04-18_4ffdc9736ffaf21fae185069ae22f840_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 2220 wrote to memory of 2244	2220	2024-04-18_4ffdc9736ffaf21fae185069ae22f840_cryptolocker.exe	28
PID 2220 wrote to memory of 2244	2220	2024-04-18_4ffdc9736ffaf21fae185069ae22f840_cryptolocker.exe	28
PID 2220 wrote to memory of 2244	2220	2024-04-18_4ffdc9736ffaf21fae185069ae22f840_cryptolocker.exe	28
PID 2220 wrote to memory of 2244	2220	2024-04-18_4ffdc9736ffaf21fae185069ae22f840_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-18_4ffdc9736ffaf21fae185069ae22f840_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_4ffdc9736ffaf21fae185069ae22f840_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2244

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
60KB

MD5
4a3956c5924c8f72ba1ad89d11a5e7f4

SHA1
88317e4d2fc98e6c3ef14b9813a82b81985b4dac

SHA256
9ad3225827ccc4c858d97fb73cbfea0776e26a6fbdc028627e3500003aa33c24

SHA512
7577126290717b1a0b072aeef0311ec7a3aa5acf354fa8fbd93dd2d46f73d910340adad8b67d1bbb28866a1cc76618c421517a4264882a743d013752b74f562f

Download Submit
memory/2220-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2220-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2220-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2220-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2220-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2244-18-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2244-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2244-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download