b2e4c0bf5300551384617ac57f2d526ed7950d55bf507009fd78559b48da1fb2

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 02:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe
Size

55KB
MD5

a14971857ddb76929a2813a9dd417b69
SHA1

0f177cc3affc13687e109acd8ac0aab8a70cdd12
SHA256

b2e4c0bf5300551384617ac57f2d526ed7950d55bf507009fd78559b48da1fb2
SHA512

e8ba2dec0c7ea79af86534719d16c2058492e2964c600ceaeef59bc4daba2dc08d57ff3ffd68609566aa0261bd8ba46e0db23a2183c550c5be6c209c9d0055fe
SSDEEP

768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbP/bmq:lj+VGMOtEvwDpjubXbmq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1652-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/1652-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2636-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2636-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1652-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/1652-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2636-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2636-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1652-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1652-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2636-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2636-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2636 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe

pid process

1652 2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2636	misid.exe

pid	process
1652	2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe

description	pid	process	target process
PID 1652 wrote to memory of 2636	1652	2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe	misid.exe
PID 1652 wrote to memory of 2636	1652	2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe	misid.exe
PID 1652 wrote to memory of 2636	1652	2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe	misid.exe
PID 1652 wrote to memory of 2636	1652	2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_a14971857ddb76929a2813a9dd417b69_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1652

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2636

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\misid.exe
Filesize
56KB

MD5
d590c1f7a36966597f1be21ce5d73b51

SHA1
3d826eccc34f7ca4f60afacbb44d346fe4bd4293

SHA256
9b345a68647bb4acf67273cbe80d8f2c5c53f19a1244cf477754241fd4f69269

SHA512
e5eb43f5320262c6e381cff5cf2a20d4d040ee9baaca46f228bcab97864ebba8709cfc3d62cf792aa85af368bacc467bd02eecbd1d1dd99a923869adc15bcd30

Download Submit
memory/1652-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1652-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1652-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1652-9-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1652-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2636-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2636-25-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2636-18-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2636-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download