01294d2bf327ef411f9aa96c961be3b0b9328da40effad44979b14ed76a4e33b

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2024, 05:33

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General

Target

2024-01-29_5c25a790b25fa035e0353175879178eb_cryptolocker.exe
Size

47KB
MD5

5c25a790b25fa035e0353175879178eb
SHA1

a2dd90ec3215b526c0c07d38e624b256265d52a4
SHA256

01294d2bf327ef411f9aa96c961be3b0b9328da40effad44979b14ed76a4e33b
SHA512

a5e2bf45988d4f99d47d0cf570341b2e30352e5972b7a9c8bfb75cc07aa1097a2149f6bebd63360112faf4a690b6778b289936ff864a761008637d4852130b99
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0FmGG:vj+jsMQMOtEvwDpj5HczerLO04GG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023210-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023210-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-01-29_5c25a790b25fa035e0353175879178eb_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
3136	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 3136	1492	2024-01-29_5c25a790b25fa035e0353175879178eb_cryptolocker.exe	83
PID 1492 wrote to memory of 3136	1492	2024-01-29_5c25a790b25fa035e0353175879178eb_cryptolocker.exe	83
PID 1492 wrote to memory of 3136	1492	2024-01-29_5c25a790b25fa035e0353175879178eb_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-01-29_5c25a790b25fa035e0353175879178eb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_5c25a790b25fa035e0353175879178eb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:3136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
48KB

MD5
959fa183478605cea433045a4fab45b9

SHA1
9f074f29a229d4521e4ed639ae6204edfa81c9fa

SHA256
960c42448ea8428eabac074dbca3b5e82b204459375a0f504341acb22c3b3947

SHA512
3d00854a4a152ef9ca326557146515e4d87411cf64a2681c769ac3aff02a8df236732f9027b3ecdcc9b93f88c8280b772beb4e6e2156ae5f2e729fc4032c9b30

Download Submit
memory/1492-0-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/1492-1-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/1492-2-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/3136-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3136-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download