f0b4cbc4cceee07c0d3c6d7cb0802a5df67d9e214c4ae70ffd91f26572e38b2a

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 07:42

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General

Target

2024-02-23_7589bbb8cc53c92cf06bb52220b8aa90_cryptolocker.exe
Size

39KB
MD5

7589bbb8cc53c92cf06bb52220b8aa90
SHA1

065e5b21efa39912a04cb8299b986acf067c2c68
SHA256

f0b4cbc4cceee07c0d3c6d7cb0802a5df67d9e214c4ae70ffd91f26572e38b2a
SHA512

97e7244752083b8e3d3b56c4aa10105377d51d45bd4af532423a804757151d8f9707638fcca49b645c789ac05be7dfb01d903342b4cb68ecda10270644cf96d0
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcft:X6QFElP6n+gJQMOtEvwDpjBsYK6t

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001222a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001222a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2528	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1984	2024-02-23_7589bbb8cc53c92cf06bb52220b8aa90_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 1984 wrote to memory of 2528	1984	2024-02-23_7589bbb8cc53c92cf06bb52220b8aa90_cryptolocker.exe	28
PID 1984 wrote to memory of 2528	1984	2024-02-23_7589bbb8cc53c92cf06bb52220b8aa90_cryptolocker.exe	28
PID 1984 wrote to memory of 2528	1984	2024-02-23_7589bbb8cc53c92cf06bb52220b8aa90_cryptolocker.exe	28
PID 1984 wrote to memory of 2528	1984	2024-02-23_7589bbb8cc53c92cf06bb52220b8aa90_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_7589bbb8cc53c92cf06bb52220b8aa90_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_7589bbb8cc53c92cf06bb52220b8aa90_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2528

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
39KB

MD5
23e98451703dcda987b7296dfefe4d26

SHA1
a713fb7f28d86232b841ce9d7fb516bd2bfe3fa9

SHA256
c9da8cfae8cc1a24efeebfa273b10d6d485a8d82835b70ff807536921c161c24

SHA512
3667f2171140597b462d209ce0939b07aee48fef497bd9c8463d2c9b09335a3824f667c333a60f7132fb9b33d37fe1ef0f0d83020c5119be2c24f0128a9ad7d0

Download Submit
memory/1984-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1984-3-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1984-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2528-16-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2528-15-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download