8e12eb071e3f1a7755705a5d7c23876b78df101611c374b553b8b61ad3bdbe3a

Analysis

max time kernel
148s
max time network
160s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14-02-2024 18:32

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General

Target

2024-02-14_2bb691cd034844ee24753cf2c2ec1984_cryptolocker.exe
Size

385KB
MD5

2bb691cd034844ee24753cf2c2ec1984
SHA1

044d0b31977378a543d5367c7dff9bfb12abed7a
SHA256

8e12eb071e3f1a7755705a5d7c23876b78df101611c374b553b8b61ad3bdbe3a
SHA512

a786b5c04000ff603eb72963078d607896b65a0588b8a65a4a5c02d1f5642dec68bd693f63278ff69babfd8f71d96c0d7cf24385a3056e7edbb8cb2440671967
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXc:nnOflT/ZFIjBz3xjTxynGUOUhXc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2756	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1684	2024-02-14_2bb691cd034844ee24753cf2c2ec1984_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 1684 wrote to memory of 2756	1684	2024-02-14_2bb691cd034844ee24753cf2c2ec1984_cryptolocker.exe	28
PID 1684 wrote to memory of 2756	1684	2024-02-14_2bb691cd034844ee24753cf2c2ec1984_cryptolocker.exe	28
PID 1684 wrote to memory of 2756	1684	2024-02-14_2bb691cd034844ee24753cf2c2ec1984_cryptolocker.exe	28
PID 1684 wrote to memory of 2756	1684	2024-02-14_2bb691cd034844ee24753cf2c2ec1984_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_2bb691cd034844ee24753cf2c2ec1984_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_2bb691cd034844ee24753cf2c2ec1984_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2756

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
385KB

MD5
7dae75f22495a3d549078eebc6765c45

SHA1
0af016ad700eb238cab183e5b91e76a0d686a94e

SHA256
6d55a0b4ac49aeeaa4c7e6398bdc7d3c28616ee2179fe2a9b1d1caa814b5f3bf

SHA512
8682a961142413a6cced979015e7078730ab96c6db8f08cdfe9e32383cd764ca1dcb5f26e5ade657f7c0bf8362120bb99b10568c6d6f4b348dd08244c512c9ab

Download Submit
memory/1684-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1684-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1684-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2756-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2756-17-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download