8043f91e1be73eb5a84d54907b171a14b8f74f8e4cccbcccb2cfe4165a1156d3

Analysis

max time kernel
131s
max time network
139s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
07/03/2024, 15:25

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General

Target

2024-03-07_38e1eb837c083e8a2ce3fc090f1c08d1_cryptolocker.exe
Size

36KB
MD5

38e1eb837c083e8a2ce3fc090f1c08d1
SHA1

085aa62007c9df3441cc5da4f235da4952111931
SHA256

8043f91e1be73eb5a84d54907b171a14b8f74f8e4cccbcccb2cfe4165a1156d3
SHA512

976554838dfac8b98a448fbf25a7746c9c41b2a91e6cc0a670734e17d677e133d37052bb4c1e5cf33350b096b511746a7ce04c917728824a12d74db32bfd1591
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/UkRYzMAZ+7:vj+jsMQMOtEvwDpj5HcSYPw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001233c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001233c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2940	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3000	2024-03-07_38e1eb837c083e8a2ce3fc090f1c08d1_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 3000 wrote to memory of 2940	3000	2024-03-07_38e1eb837c083e8a2ce3fc090f1c08d1_cryptolocker.exe	28
PID 3000 wrote to memory of 2940	3000	2024-03-07_38e1eb837c083e8a2ce3fc090f1c08d1_cryptolocker.exe	28
PID 3000 wrote to memory of 2940	3000	2024-03-07_38e1eb837c083e8a2ce3fc090f1c08d1_cryptolocker.exe	28
PID 3000 wrote to memory of 2940	3000	2024-03-07_38e1eb837c083e8a2ce3fc090f1c08d1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-07_38e1eb837c083e8a2ce3fc090f1c08d1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_38e1eb837c083e8a2ce3fc090f1c08d1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2940

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
76f6f44bc25491f7fff03b71eb68543c

SHA1
372435d9390c2656409e0dc535b5733672c06e39

SHA256
b2708acc1948cf91f373eee73dc78be42e4544372fa8c7f7601e0086d20a044b

SHA512
04fbd62c281054964f989d426013e4bc20e839d24c44790394293a5fb6d3b0e42c17202ea99490bb327e61ae11fa848e481417e04bc713f0eb8247747c5cabe9

Download Submit
memory/2940-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2940-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3000-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/3000-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/3000-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download