d9eeb02ff9cf4448cbdf43f35e47abc5a2927490c9cc4e522510725c534bf1e0

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-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
behavioral2/files/0x000900000002320b-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002320b-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 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-1-5-21-2132103209-3755304320-2959162027-1000\Control Panel\International\Geo\Nation	2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2468	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 4860 wrote to memory of 2468	4860	2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe	84
PID 4860 wrote to memory of 2468	4860	2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe	84
PID 4860 wrote to memory of 2468	4860	2024-02-21_7414fd497bd138d0c74b839a929e614d_cryptolocker.exe	84

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⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2468

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
78KB

MD5
b5f8c6740c7023d5e328cb5da15ea2d9

SHA1
884ca7fd597bbfebb3e163fa549dbbefc0587bcb

SHA256
af5ba600094a8cf7207ab22cbbd32e920042834650c55c9edd65a032aba09f26

SHA512
31ec693f3ea008f9cbc5b953bcd9730edb0fdf3e33cc81670837c22b154af4ab70bcf8af012080282bf9565d2ad2aa917ed159ef71f21bc0807ad82ca8ef9760

Download Submit
memory/2468-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2468-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4860-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4860-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4860-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download