740e3e83ef7cfeb2cf0c5045131d70382999c2f7117b32f8be44810b25b71795

Analysis

max time kernel
149s
max time network
158s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 16:34

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General

Target

2024-02-23_57d088e5e73df5461ea46e0c8e33b8b0_cryptolocker.exe
Size

38KB
MD5

57d088e5e73df5461ea46e0c8e33b8b0
SHA1

70d6eb1970e09628750e6f041700b92941cc2575
SHA256

740e3e83ef7cfeb2cf0c5045131d70382999c2f7117b32f8be44810b25b71795
SHA512

da9739ec8ac9258303b5952be8424513b029fee6cf3cc8cddf5b1dcf07822561dc797c3289c4407801f16ddd4f25ede62bd62cfa7782d3c9de7b2b3318577865
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfX5:bgX4zYcgTEu6QOaryfjqDDw3sCu5mX5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012254-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2564	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1008	2024-02-23_57d088e5e73df5461ea46e0c8e33b8b0_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 1008 wrote to memory of 2564	1008	2024-02-23_57d088e5e73df5461ea46e0c8e33b8b0_cryptolocker.exe	28
PID 1008 wrote to memory of 2564	1008	2024-02-23_57d088e5e73df5461ea46e0c8e33b8b0_cryptolocker.exe	28
PID 1008 wrote to memory of 2564	1008	2024-02-23_57d088e5e73df5461ea46e0c8e33b8b0_cryptolocker.exe	28
PID 1008 wrote to memory of 2564	1008	2024-02-23_57d088e5e73df5461ea46e0c8e33b8b0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_57d088e5e73df5461ea46e0c8e33b8b0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_57d088e5e73df5461ea46e0c8e33b8b0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2564

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\hasfj.exe

Filesize
38KB

MD5
e1b65e2bab920bc4727b251e98002b95

SHA1
0b4e999c5fef41ce8e599b85f4c3ebea21bca68f

SHA256
492501b087cc3d53562d3e916bf027401118e31b61f6301a342dfc167509cf8b

SHA512
b690bc33a6d0171c7b0a5481a44d3c80bccf83b30b61b5858fb60ffc8e5b59663ad6caaeb4a40a6ecd8b068f085a3676d8d9263dff147c4d05db313a72183fc2

Download Submit
memory/1008-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1008-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1008-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2564-15-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2564-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download