ac7a052d4cbb10a3f1eb4850ccfddf64dbabe997a3be47305c196d4878608942

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 17:38

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General

Target

2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe
Size

386KB
MD5

8b296bb99487207d8a229c52f69d7367
SHA1

baa51b3c03ec65585e8760463d555872400fd3ed
SHA256

ac7a052d4cbb10a3f1eb4850ccfddf64dbabe997a3be47305c196d4878608942
SHA512

2bb46c4c66d530191029076d66e504c3df17cce207623e79ad5714a88f472896d2b4bbc52277c209e5c0f126bcf6e5f0f0e75a9a16b3530cf5cec8c4278b4121
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX0:nnOflT/ZFIjBz3xjTxynGUOUhX0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012247-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1896	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1156	2024-03-09_8b296bb99487207d8a229c52f69d7367_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 1156 wrote to memory of 1896	1156	2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe	28
PID 1156 wrote to memory of 1896	1156	2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe	28
PID 1156 wrote to memory of 1896	1156	2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe	28
PID 1156 wrote to memory of 1896	1156	2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_8b296bb99487207d8a229c52f69d7367_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1156
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1896

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
386KB

MD5
d9465d9f0f3c67232c09b4168a0fd74a

SHA1
132deec0972e02900c24d81b2962742690ededb3

SHA256
11dd9d95e3af394074c3755ce3d732d7febf2d08989b5b81943d2d9435167a4e

SHA512
9c69a2e8392004ba28567be1f3c9089fa2ddc419e1c3c4ce4ac21b6f468a2db7279ccbd3f5d095aba9c5859d37a665392fc404ada1a5c1ecd19775d6fdf0ab0d

Download Submit
memory/1156-0-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1156-1-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1156-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1896-15-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/1896-17-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download