718e7b1d57fcb5c14d66549ea3fa8846cbbc9abe3aaf971c7219a164e9b2ad88

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/04/2024, 03:55

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General

Target

2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe
Size

81KB
MD5

65143fb26981eaf0448429922d84e60c
SHA1

c9ec0ab422d2fb7b7555ea933d4181dc90f6ef03
SHA256

718e7b1d57fcb5c14d66549ea3fa8846cbbc9abe3aaf971c7219a164e9b2ad88
SHA512

f982bf3bb4831884327e133a2fb0a40f9b729c4e62912450470d8735688ce0b0d0d9929efbee05db1db2196e4b3e5720a0dc6dfc452fd91d22a57b93a8771338
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNqV2:vCjsIOtEvwDpj5H9YvQd2p

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012262-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012262-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2516	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2456	2024-04-21_65143fb26981eaf0448429922d84e60c_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 2456 wrote to memory of 2516	2456	2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe	28
PID 2456 wrote to memory of 2516	2456	2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe	28
PID 2456 wrote to memory of 2516	2456	2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe	28
PID 2456 wrote to memory of 2516	2456	2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_65143fb26981eaf0448429922d84e60c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2516

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\misid.exe

Filesize
81KB

MD5
12213abf33441c4c579acb55a42c1cfc

SHA1
84e1d30e939003d60be1691346f8a6ed3d20046a

SHA256
3429d04a5c8056e159312f22fa5de5f799b5dc51fd3f0c176efe28cfbef2bfa4

SHA512
620c2786795ebc73aa2aed3bc01509888418f2d169aaafcc33fe8c1152a186dba01c1a3df4eb8f3358250f1970eb03c1b91dbd2db42019865b6842fd2ea070f2

Download Submit
memory/2456-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2456-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2456-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2516-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2516-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download