284a94f204fc0f8d9b3f337f55e5f63ca1b3d22449770912739a500505439ba8

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2024, 01:12

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General

Target

2024-03-07_ed38bf9f213bdd392d923c7c5eb7d3e1_cryptolocker.exe
Size

48KB
MD5

ed38bf9f213bdd392d923c7c5eb7d3e1
SHA1

84907f3eb2fe55ff73b2cd26842885c6f7c35872
SHA256

284a94f204fc0f8d9b3f337f55e5f63ca1b3d22449770912739a500505439ba8
SHA512

2225de5ef3e489737df1c5d2dd97bf10eb86cf4ceef9cbe831bdaf9842a212f9db5403c97d61d1b7d8f874d2e11b95c3c5434d89f33374052152640f14f15aba
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUuuMT8l:vj+jsMQMOtEvwDpj5Hczer5ixuMA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-07_ed38bf9f213bdd392d923c7c5eb7d3e1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1956	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 1952 wrote to memory of 1956	1952	2024-03-07_ed38bf9f213bdd392d923c7c5eb7d3e1_cryptolocker.exe	89
PID 1952 wrote to memory of 1956	1952	2024-03-07_ed38bf9f213bdd392d923c7c5eb7d3e1_cryptolocker.exe	89
PID 1952 wrote to memory of 1956	1952	2024-03-07_ed38bf9f213bdd392d923c7c5eb7d3e1_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-07_ed38bf9f213bdd392d923c7c5eb7d3e1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-07_ed38bf9f213bdd392d923c7c5eb7d3e1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1956

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

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Downloads

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

Filesize
48KB

MD5
de83a198cab8ce2bb362a1480e2e44c4

SHA1
c5829740d92e81e7243942ba9f02920801fbab20

SHA256
bde398ca61e719a865050fb6ce4c7adfc0ef367a35af2e7a44c7b927d08e7303

SHA512
f7a7e47492677ba42777adba6c6098f619355af1dcc7b87c24fe7fcc2ef22da6d246358945345a4ff6e44d0d97f9dafc5b728cc7df7381b87683f5dbb1c3a49d

Download Submit
memory/1952-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1952-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1952-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download