3b1409a1e7bbb1c24a5dde8e62d6b08741f07a7c4e7ee1ea892aed9c823894b1

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
10/05/2024, 07:30

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General

Target

2024-05-10_389f831ea5b4b59918688e6a8e5da593_cryptolocker.exe
Size

32KB
MD5

389f831ea5b4b59918688e6a8e5da593
SHA1

12c8ba297e458620245f4428414b91831f5334cd
SHA256

3b1409a1e7bbb1c24a5dde8e62d6b08741f07a7c4e7ee1ea892aed9c823894b1
SHA512

dd6c7dd923f6e8c4f52b289ce39cd493c0e15b6926d46607db1e4e669cc576af45213541387a965032a2de1cf931339de160404abe84d61ab0103243c1bf3bdc
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGJO:bG74zYcgT/Ekd0ryfjF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/1044-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000014af6-11.dat	CryptoLocker_rule2
behavioral1/memory/1044-13-0x0000000001DA0000-0x0000000001DAA000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-17-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1044-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-27-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3048	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1044	2024-05-10_389f831ea5b4b59918688e6a8e5da593_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 1044 wrote to memory of 3048	1044	2024-05-10_389f831ea5b4b59918688e6a8e5da593_cryptolocker.exe	28
PID 1044 wrote to memory of 3048	1044	2024-05-10_389f831ea5b4b59918688e6a8e5da593_cryptolocker.exe	28
PID 1044 wrote to memory of 3048	1044	2024-05-10_389f831ea5b4b59918688e6a8e5da593_cryptolocker.exe	28
PID 1044 wrote to memory of 3048	1044	2024-05-10_389f831ea5b4b59918688e6a8e5da593_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_389f831ea5b4b59918688e6a8e5da593_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_389f831ea5b4b59918688e6a8e5da593_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3048

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
32KB

MD5
5ac067e738a555cc199646824e2c7953

SHA1
fc16dbae0dd9c7a6d7fb24dade51286de7e77ad5

SHA256
51c6b90286089a8c2484f6392a791cfb170327888f14fd38032b9f0a3e6f81fd

SHA512
17dc30958447e2d96738a49f72e369a6559097bd7a2c08c751d5995ff09695d556fe25e1a6a8c612d7fc9d8959ee03bbca60ce10cca6b9353d95d16cbe007140

Download Submit
memory/1044-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1044-2-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download
memory/1044-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1044-9-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1044-13-0x0000000001DA0000-0x0000000001DAA000-memory.dmp

Filesize
40KB

Download
memory/1044-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3048-19-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/3048-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3048-26-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/3048-27-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download