ad85d1e4a6e7a06a7e559195ff0e48d0929e70155cfc74fd7a43782fd89dd166

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/01/2024, 04:41

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General

Target

2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe
Size

51KB
MD5

9a26ff2bf5c6fde1985499ef2bd821d8
SHA1

1815f170355e60f76a12c94f2d11709d4837b203
SHA256

ad85d1e4a6e7a06a7e559195ff0e48d0929e70155cfc74fd7a43782fd89dd166
SHA512

8af602f319225a9cf0ccd35dd6f41125815038a663f4887560e5091326f5356d31a178b232844fd8a7370f83732d605509be07d437846b52d5fc630e2aa0bad1
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTbte:bIDOw9a0DwitDZzcTw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000120e1-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2624	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2040	2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_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 2040 wrote to memory of 2624	2040	2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe	28
PID 2040 wrote to memory of 2624	2040	2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe	28
PID 2040 wrote to memory of 2624	2040	2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe	28
PID 2040 wrote to memory of 2624	2040	2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_9a26ff2bf5c6fde1985499ef2bd821d8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2624

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\lossy.exe

Filesize
51KB

MD5
0a6b2dd7df94c9c411a0d9b49287de50

SHA1
625758bcf672a62e9afd1cff77ae634a07e56436

SHA256
8c8b913b475b8266656b9f109295658e297db7770652af6fe3d9910b2f1f0b59

SHA512
1dac66b5269c886ca22cae65a6103e0712b3a6291ccae9c287e150a3f4a8bb394764a61b7bf8db6c3dbac0903c94bd5fa9e62db30cf90470e1dddb8d2fe1c621

Download Submit
memory/2040-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2040-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2040-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2624-15-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2624-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download