660cf5e5ce9c8537f309e92634ce06b739c14c71f79c908a826b85760c365187

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-05-2024 03:54

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General

Target

2024-05-25_70d53404451461adaa8f39bccccfcf38_cryptolocker.exe
Size

37KB
MD5

70d53404451461adaa8f39bccccfcf38
SHA1

17a89044610d5dde3caf675d8502c410b617903a
SHA256

660cf5e5ce9c8537f309e92634ce06b739c14c71f79c908a826b85760c365187
SHA512

4019efeea2aa3c738222d5c8cc9d53e0959e3987376dc946e5e1bdc052468cbcd184ce5b1a28e96b2d16f28875548696f6e5d841015d837b3b7c63dabfd93965
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4C:fT+hsMQMOtEvwDpjoIHC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014b31-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014b31-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1940	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1276	2024-05-25_70d53404451461adaa8f39bccccfcf38_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 1276 wrote to memory of 1940	1276	2024-05-25_70d53404451461adaa8f39bccccfcf38_cryptolocker.exe	28
PID 1276 wrote to memory of 1940	1276	2024-05-25_70d53404451461adaa8f39bccccfcf38_cryptolocker.exe	28
PID 1276 wrote to memory of 1940	1276	2024-05-25_70d53404451461adaa8f39bccccfcf38_cryptolocker.exe	28
PID 1276 wrote to memory of 1940	1276	2024-05-25_70d53404451461adaa8f39bccccfcf38_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_70d53404451461adaa8f39bccccfcf38_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_70d53404451461adaa8f39bccccfcf38_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1940

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
37KB

MD5
b6dc8d90732115f4c230aab9b4664662

SHA1
632bf3c3e6f6df9fd5c7859e83eea9bcac0f28bd

SHA256
f8aaca7ffde765019bdce506f0936fb5b4bcb4655fb3605b6e53613f9e066e4c

SHA512
59033f2323ce4ae01a49fa0581a998a99dfd4f5627ca30c2f96c455b4173530158aafb9397b26a439c167ca044b05676b6abdf1da6087b3e9696d1e3aedf4831

Download Submit
memory/1276-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1276-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1276-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1940-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1940-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download