97ab13cf5693933d27800a0a0c7b87bc6b6bb85c231c928feb1e984d6a507346

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
20-05-2024 15:12

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General

Target

2024-05-20_b51f4c2aa3a887ba709b90b45e2282fe_cryptolocker.exe
Size

84KB
MD5

b51f4c2aa3a887ba709b90b45e2282fe
SHA1

989e3a2254a40820a8a1581ae73a56552fda6ccf
SHA256

97ab13cf5693933d27800a0a0c7b87bc6b6bb85c231c928feb1e984d6a507346
SHA512

fc58138d1e41c102e6a5528cbf2cd76a882afa50183a8ad85f92928ad92f848e74a61fc80c685b8e6d1ade64484dc6d4cd5b380d09b09f70f269c60d94dc56c2
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCh:TCjsIOtEvwDpj5HE/OUHnSM0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2340-8-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000014390-11.dat	CryptoLocker_rule2
behavioral1/memory/2340-13-0x0000000002A80000-0x0000000002A8E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2852-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2852-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2340-8-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000014390-11.dat	CryptoLocker_set1
behavioral1/memory/2340-13-0x0000000002A80000-0x0000000002A8E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2852-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2852-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2852	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2340	2024-05-20_b51f4c2aa3a887ba709b90b45e2282fe_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 2340 wrote to memory of 2852	2340	2024-05-20_b51f4c2aa3a887ba709b90b45e2282fe_cryptolocker.exe	28
PID 2340 wrote to memory of 2852	2340	2024-05-20_b51f4c2aa3a887ba709b90b45e2282fe_cryptolocker.exe	28
PID 2340 wrote to memory of 2852	2340	2024-05-20_b51f4c2aa3a887ba709b90b45e2282fe_cryptolocker.exe	28
PID 2340 wrote to memory of 2852	2340	2024-05-20_b51f4c2aa3a887ba709b90b45e2282fe_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-20_b51f4c2aa3a887ba709b90b45e2282fe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-20_b51f4c2aa3a887ba709b90b45e2282fe_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2852

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

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
84KB

MD5
cf8da7488320769b82cc62dcaa354ab3

SHA1
dccd92c1e17f76e41112f3eea99ea375187a6c2e

SHA256
b24de6d0a3ae20fa19abbfd43e9cfd8d66f40ce50b10a29e7fd5a0a411eb0de2

SHA512
e6c10ba50916f1d9aec0dd5a23c3251da4242f4ba8d0b6165fd9624ac7570fa494af5247a219d354e94db884a2bc3574a94e8c2a1cfadcb563c08a2f5591da09

Download Submit
memory/2340-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2340-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2340-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2340-8-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2340-13-0x0000000002A80000-0x0000000002A8E000-memory.dmp

Filesize
56KB

Download
memory/2852-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2852-18-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2852-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download