c422df7827eea72daadbfa19d03bc44b5a6453f22a51543412a838febe3cecf5

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 15:02

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General

Target

2024-05-22_c065b744c5ea8ffefa42754a557fc6a3_cryptolocker.exe
Size

47KB
MD5

c065b744c5ea8ffefa42754a557fc6a3
SHA1

23aa915e10602ede33d6257f410f05518483b701
SHA256

c422df7827eea72daadbfa19d03bc44b5a6453f22a51543412a838febe3cecf5
SHA512

f9c614192e23ce8567ef8f68bb2d89a58a2bb7ca46311074a8782d2a4be0ec3152a8edccf78fb25b94e6ee042a88fe04cd2c01706cd2c105dcf51e25ab66b5a1
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/WccJVJwi2B5oCCM8CLW2VR:79inqyNR/QtOOtEvwDpjBKccJVODvy3w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2180-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001226d-11.dat	CryptoLocker_rule2
behavioral1/memory/2612-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2180-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2180-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001226d-11.dat	CryptoLocker_set1
behavioral1/memory/2612-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2180-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2612	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	2024-05-22_c065b744c5ea8ffefa42754a557fc6a3_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 2180 wrote to memory of 2612	2180	2024-05-22_c065b744c5ea8ffefa42754a557fc6a3_cryptolocker.exe	28
PID 2180 wrote to memory of 2612	2180	2024-05-22_c065b744c5ea8ffefa42754a557fc6a3_cryptolocker.exe	28
PID 2180 wrote to memory of 2612	2180	2024-05-22_c065b744c5ea8ffefa42754a557fc6a3_cryptolocker.exe	28
PID 2180 wrote to memory of 2612	2180	2024-05-22_c065b744c5ea8ffefa42754a557fc6a3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-22_c065b744c5ea8ffefa42754a557fc6a3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_c065b744c5ea8ffefa42754a557fc6a3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2612

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\asih.exe

Filesize
47KB

MD5
5f0b2419564ef57a5409803032e5130a

SHA1
677a9d18a99825818a5f07212ac010ca003d02e9

SHA256
410a08d34e53bebf5f02f3eddc4a50bcf9ff4d38107d286101b1df8db0a20ef6

SHA512
98f6e8e624f585bdef90c918d6dab4b8a398e2461dc267c902e176bd8bd2f942b08bade43361b8b82382a1c01c14e7dd6a5d0bc5011fc2e4ffd20fe43f2e4002

Download Submit
memory/2180-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2180-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2180-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2180-9-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2180-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2612-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2612-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download