c4a7f111679a33fe1d1833530f0a1199fd46bc645c43407141863337e7ea1db1

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
29/03/2024, 17:27

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General

Target

2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe
Size

46KB
MD5

126f14e8807ad39ebd52efd05791c3a2
SHA1

18bd60dc456b8d25f8f0189eb24d91b210551d81
SHA256

c4a7f111679a33fe1d1833530f0a1199fd46bc645c43407141863337e7ea1db1
SHA512

6383b9425125e22eae357f5597e3bcf303a878bb7f1551c866427332750aefbb8efbf852d2e5fc34ea1d60ab46734f664cd12572ef7d861ff0f5de70fb323445
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hQcXSud:bgGYcA/53GAA6y37nbuud

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013a06-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1652	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2972	2024-03-29_126f14e8807ad39ebd52efd05791c3a2_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 2972 wrote to memory of 1652	2972	2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe	28
PID 2972 wrote to memory of 1652	2972	2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe	28
PID 2972 wrote to memory of 1652	2972	2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe	28
PID 2972 wrote to memory of 1652	2972	2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_126f14e8807ad39ebd52efd05791c3a2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1652

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
46KB

MD5
3a8d4ecd6f453bf2a4342c2ae130dc3d

SHA1
7c198d0b7beda718634ffa481eb429fc232046ef

SHA256
fc5cb398d0072c8bf0f3c6108480140d397acbefd414456f0cc8f2e0fe00fcd4

SHA512
0c8d3a2f0e1da83a6c282f706eac39e2edc6c3b27c8659ac41617b87cd7337083bfc05f92cf535948c78c226282bcdac3979695a7ec63a3240dbd1d27b13184a

Download Submit
memory/1652-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1652-22-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2972-0-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download
memory/2972-1-0x0000000001BD0000-0x0000000001BD6000-memory.dmp

Filesize
24KB

Download
memory/2972-7-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download