495743f93bb07b58f5c1a64e5f746e164b7c3fa7b2899c47baade6350f956788

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
26/04/2024, 21:29

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General

Target

2024-04-26_b529dda68267c8c7e54c9d95a3874ca2_cryptolocker.exe
Size

36KB
MD5

b529dda68267c8c7e54c9d95a3874ca2
SHA1

303af6ad212c31677c773394887dfea37332be54
SHA256

495743f93bb07b58f5c1a64e5f746e164b7c3fa7b2899c47baade6350f956788
SHA512

015bb0c69c573448bcb09c3f49a07b103ad309bf2f2c14ed57093c4ccdf097b45b80fef7e571265ea95acee772437b22113d27afacdf808ca8d7cbae9e9dc60f
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+40:fT+hsMQMOtEvwDpjoIH0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b59-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b59-12.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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	2024-04-26_b529dda68267c8c7e54c9d95a3874ca2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3788	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 2692 wrote to memory of 3788	2692	2024-04-26_b529dda68267c8c7e54c9d95a3874ca2_cryptolocker.exe	83
PID 2692 wrote to memory of 3788	2692	2024-04-26_b529dda68267c8c7e54c9d95a3874ca2_cryptolocker.exe	83
PID 2692 wrote to memory of 3788	2692	2024-04-26_b529dda68267c8c7e54c9d95a3874ca2_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-26_b529dda68267c8c7e54c9d95a3874ca2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_b529dda68267c8c7e54c9d95a3874ca2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3788

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
36KB

MD5
1850ba384502353de63aedbaaa140883

SHA1
c9a7b9108daec36d2a786004c2a3a3f62bfc13cf

SHA256
301783315b559cec6f90af611c3a32263da445ae2e312b35231d1d0518bf2c84

SHA512
5172efd83e3d5de3cd9a2e7c93f978d3f913309f4c195cc80be02ff26b5f64ee79aa4fe79597e4c307333109efbc4897e723790f4a52eabcb65e346e68dc9ee8

Download Submit
memory/2692-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2692-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2692-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3788-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/3788-23-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download