4bb457bbb4bac81e14ad24c33e753ffe77ae5692a60cfcda0fe11e425d96a0f0

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 09:00

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General

Target

2024-03-28_d7159268b9f8d47cbf9562dd7167ec4f_cryptolocker.exe
Size

38KB
MD5

d7159268b9f8d47cbf9562dd7167ec4f
SHA1

852fef295358160752707fcb54d6fc64fe0b9868
SHA256

4bb457bbb4bac81e14ad24c33e753ffe77ae5692a60cfcda0fe11e425d96a0f0
SHA512

49c49137d1127b735682492e92b9c2acb25bd5bd9e995e07eadf63fa334fe0a789a2ed10bc6dfc659d08702d1931dd41001d7d105799823ab497817cbc2d631e
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeneYVKc:ZzFbxmLPWQMOtEvwDpjLeJVD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224e-11.dat	CryptoLocker_rule2
behavioral1/memory/2300-24-0x0000000000230000-0x0000000000236000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2300	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2880	2024-03-28_d7159268b9f8d47cbf9562dd7167ec4f_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 2880 wrote to memory of 2300	2880	2024-03-28_d7159268b9f8d47cbf9562dd7167ec4f_cryptolocker.exe	28
PID 2880 wrote to memory of 2300	2880	2024-03-28_d7159268b9f8d47cbf9562dd7167ec4f_cryptolocker.exe	28
PID 2880 wrote to memory of 2300	2880	2024-03-28_d7159268b9f8d47cbf9562dd7167ec4f_cryptolocker.exe	28
PID 2880 wrote to memory of 2300	2880	2024-03-28_d7159268b9f8d47cbf9562dd7167ec4f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_d7159268b9f8d47cbf9562dd7167ec4f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_d7159268b9f8d47cbf9562dd7167ec4f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2300

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
38KB

MD5
5f8ce7ce095a8754aa03c052aca4c247

SHA1
7b9bc2e61b599e6a37633d527c999716d8e0a9a4

SHA256
211dd50dfda7d0bdd01e4cbbc57ed9f4469c384c897bf09ba29b12fdd726870a

SHA512
7d9a5b902d958af4126c72fcf08fe443d659f1cab07b6b09c8a5e752898046fd18185dfca92b8132a7138e5985210356f1e08be92309facaed7048768d6ace67

Download Submit
memory/2300-16-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2300-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2300-24-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2880-1-0x0000000000240000-0x00000000002C0000-memory.dmp

Filesize
512KB

Download
memory/2880-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2880-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2880-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download