c0660e6b0720c8c3bc524edc1b4c17670ef1a65f5b8f7ab20a954b11f1d1440a

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:32

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General

Target

2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe
Size

52KB
MD5

4cd25b17a9417483d8be7a7f32989f5f
SHA1

1fe188cb7b45e2ad2934f72aa4f699a4e70b102c
SHA256

c0660e6b0720c8c3bc524edc1b4c17670ef1a65f5b8f7ab20a954b11f1d1440a
SHA512

28e1dc66650e1cf360bb2a914a0c8318cff46154039e6853758cd0e56b46af93191ce39ee55c2c6fcec122642e8609b4938459f60aa232a1bbb83240894861fd
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaT2:X6QFElP6n+gJBMOtEvwDpjBtExmlC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

3024 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe

pid process

1180 2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3024	asih.exe

pid	process
1180	2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe

description	pid	process	target process
PID 1180 wrote to memory of 3024	1180	2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe	asih.exe
PID 1180 wrote to memory of 3024	1180	2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe	asih.exe
PID 1180 wrote to memory of 3024	1180	2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe	asih.exe
PID 1180 wrote to memory of 3024	1180	2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_4cd25b17a9417483d8be7a7f32989f5f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1180

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:3024

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
52KB

MD5
d407b9a5940114ab99159a81b9141eac

SHA1
9c7ae3c726baaf18ebc3b082e3ca640119afe397

SHA256
3f4922e749868a3708991566d2c94bcdde6db2a8df1506c5c33744c1844b05e1

SHA512
1e3a3708ad657b003eb699482233a3bc638d81e7de3e44598be49af21dfa50e1a4025e72b0d5c59bb956196c646593639004277a2f2e521b71f851c0a0c1b86c

Download Submit
memory/1180-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1180-1-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1180-8-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3024-22-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3024-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download