fc4179b91d8139265bfd0ec5a39b426699e0561f9b721395ff2f01e4421164cf

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
30/04/2024, 02:02

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General

Target

2024-04-30_f59860bcce86b3e74ee2870169a31702_cryptolocker.exe
Size

127KB
MD5

f59860bcce86b3e74ee2870169a31702
SHA1

527c738aa249fa603fbdba6aed35b5f0caed95ed
SHA256

fc4179b91d8139265bfd0ec5a39b426699e0561f9b721395ff2f01e4421164cf
SHA512

b86f7631f6576c2ad9f96ec96a76308de68ad8d436fa5a74a3d1405ca3f0b353d5b8b6aa42883f47b0b85a34d3a8547807b90219ca60c2062a750c1b44c115d5
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuBKLUYOVbvh//LIT8:vCjsIOtEvwDpj5H9YvQd2Rt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014fe1-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014fe1-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2204	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2804	2024-04-30_f59860bcce86b3e74ee2870169a31702_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 2804 wrote to memory of 2204	2804	2024-04-30_f59860bcce86b3e74ee2870169a31702_cryptolocker.exe	28
PID 2804 wrote to memory of 2204	2804	2024-04-30_f59860bcce86b3e74ee2870169a31702_cryptolocker.exe	28
PID 2804 wrote to memory of 2204	2804	2024-04-30_f59860bcce86b3e74ee2870169a31702_cryptolocker.exe	28
PID 2804 wrote to memory of 2204	2804	2024-04-30_f59860bcce86b3e74ee2870169a31702_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_f59860bcce86b3e74ee2870169a31702_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_f59860bcce86b3e74ee2870169a31702_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2204

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
127KB

MD5
ff0d07be260f7a189f9cc639d4da5c3b

SHA1
d6c6ad0ee382415865be7ce5d214d0f9d2256613

SHA256
a102fbe4bb8801513992ef1bcff6cbb4f3ffe31948e7afeb64aa4ee345f1c34a

SHA512
c604051f8b01a88f0f020c24ec07c581371e6acf8ad0e149b2386bbea59ca8a7221558f43c8078b22ac6eb98ff9a3cfebb0bcd09bbc4fca97103ce30d08a6f23

Download Submit
memory/2204-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2204-21-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2804-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2804-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2804-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download