23dba2781aac40255a36da106a84205b6b7a111d08c02fc0b897f79645fdb76e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 17:01

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General

Target

2024-02-21_1b2e352357f29da3ab31198bd66447a2_cryptolocker.exe
Size

36KB
MD5

1b2e352357f29da3ab31198bd66447a2
SHA1

85e4517399bfa43268a061fcc4492acfc902b061
SHA256

23dba2781aac40255a36da106a84205b6b7a111d08c02fc0b897f79645fdb76e
SHA512

64be1dd839e3d1779c52954484744c94ea52be2634b90e750dab594d574ddda1fe86cfdedc1d78b70283f9fc889b4e30cf9f37a20b0e2599949fd4ceef121424
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenkM:ZzFbxmLPWQMOtEvwDpjLekM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001231a-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2692	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2404	2024-02-21_1b2e352357f29da3ab31198bd66447a2_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 2404 wrote to memory of 2692	2404	2024-02-21_1b2e352357f29da3ab31198bd66447a2_cryptolocker.exe	28
PID 2404 wrote to memory of 2692	2404	2024-02-21_1b2e352357f29da3ab31198bd66447a2_cryptolocker.exe	28
PID 2404 wrote to memory of 2692	2404	2024-02-21_1b2e352357f29da3ab31198bd66447a2_cryptolocker.exe	28
PID 2404 wrote to memory of 2692	2404	2024-02-21_1b2e352357f29da3ab31198bd66447a2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_1b2e352357f29da3ab31198bd66447a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_1b2e352357f29da3ab31198bd66447a2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2692

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
222304e3258ab6764f2af8eaa47556f8

SHA1
f5e58d33d90858080b5f292f5d8e052d44d7a3ff

SHA256
4790b8585a8bb1d39e71e1a7171cf7771ea516e83e5c36ef2f418001648d1ec8

SHA512
926d8749513b951c13457d5101647f58b6d4b6c824f134aed01739877bdc3a9b3e70fd9306ad1c22d7b68b7b7916026910aa84dec86969382948347dc32c1fda

Download Submit
memory/2404-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2404-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2404-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2404-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2692-16-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2692-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download