d9eeb02ff9cf4448cbdf43f35e47abc5a2927490c9cc4e522510725c534bf1e0

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 16:46

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General

Target

2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe
Size

78KB
MD5

7414fd497bd138d0c74b839a929e614d
SHA1

cb3acb9416347746574d542ec5039b2a64081087
SHA256

d9eeb02ff9cf4448cbdf43f35e47abc5a2927490c9cc4e522510725c534bf1e0
SHA512

7f528b017b70baeeeecd89e7cba93d619a426c193d2c9aeb24a85cb46318a0c899bb29ed37bfbb19deea2bc898b423cead2d0e0df591184b5da17a92621db05b
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWaOh:vCjsIOtEvwDpj5H9YvQd2Y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1384	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2076	2024-02-21_7414fd497bd138d0c74b839a929e614d_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 2076 wrote to memory of 1384	2076	2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe	28
PID 2076 wrote to memory of 1384	2076	2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe	28
PID 2076 wrote to memory of 1384	2076	2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe	28
PID 2076 wrote to memory of 1384	2076	2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1384

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
78KB

MD5
b5f8c6740c7023d5e328cb5da15ea2d9

SHA1
884ca7fd597bbfebb3e163fa549dbbefc0587bcb

SHA256
af5ba600094a8cf7207ab22cbbd32e920042834650c55c9edd65a032aba09f26

SHA512
31ec693f3ea008f9cbc5b953bcd9730edb0fdf3e33cc81670837c22b154af4ab70bcf8af012080282bf9565d2ad2aa917ed159ef71f21bc0807ad82ca8ef9760

Download Submit
memory/1384-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1384-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2076-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2076-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2076-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download