1f99645a6818bc435e3dc9113b6d8e6a8bccad5d5a32f819669db64c0f77b9c4

Analysis

max time kernel
133s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/03/2024, 12:38

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General

Target

2024-03-16_869d44e2e607c166e74801e067756b18_cryptolocker.exe
Size

47KB
MD5

869d44e2e607c166e74801e067756b18
SHA1

2e1e7a4b6afa3a8089b0c057a12c94e22a38e8dd
SHA256

1f99645a6818bc435e3dc9113b6d8e6a8bccad5d5a32f819669db64c0f77b9c4
SHA512

5d063bbdf298707776ab5b8b543a6b8fced355e8efb90688ff1e2ba3d14278a2986460dea14610612f413e4fe221347999cd536be59d708d19a428b54946cf12
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556Blvj:X6QFElP6n+gJQMOtEvwDpjB0GIWSlvj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00050000000120fe-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00050000000120fe-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2936	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2484	2024-03-16_869d44e2e607c166e74801e067756b18_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 2484 wrote to memory of 2936	2484	2024-03-16_869d44e2e607c166e74801e067756b18_cryptolocker.exe	28
PID 2484 wrote to memory of 2936	2484	2024-03-16_869d44e2e607c166e74801e067756b18_cryptolocker.exe	28
PID 2484 wrote to memory of 2936	2484	2024-03-16_869d44e2e607c166e74801e067756b18_cryptolocker.exe	28
PID 2484 wrote to memory of 2936	2484	2024-03-16_869d44e2e607c166e74801e067756b18_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-16_869d44e2e607c166e74801e067756b18_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_869d44e2e607c166e74801e067756b18_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2936

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\asih.exe

Filesize
47KB

MD5
82b6ccd23658ca728dc6fc2c228ae734

SHA1
b44101b62102b30eb11a5dba6dd5373fa4e6bcb3

SHA256
3672b6847ba3434aa2242f59d4a93cf627926b51be30a7b386c7709225171758

SHA512
a75dea7dffa14cd3adeefbd8dce36d46e793f4d4876ce5cd0b0f2a4b7c38aa48a3aca5e652c830a3dac3f5e0994961dc6464be14e19e822f3d31592a61a21db4

Download Submit
memory/2484-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2484-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2484-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2936-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download