6484dfbc33104b13044eae024a4c9f56a308fce620c5c31afa8354a32f8a85aa

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
15-04-2024 14:32

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General

Target

2024-04-15_3720cf57d16e0c2409d49ee40f21c545_cryptolocker.exe
Size

45KB
MD5

3720cf57d16e0c2409d49ee40f21c545
SHA1

a63a9bb86e13c93a9425d06fd6ea1057675095b6
SHA256

6484dfbc33104b13044eae024a4c9f56a308fce620c5c31afa8354a32f8a85aa
SHA512

75b3a881f1377f19c822136f4a3bac97235203a6f66c7c7f162eac44a4696f36c950a2907b1211fedefb3a75745b1737cb7de4a77d1362c2417b68f206dbf8b2
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUuj2e:vj+jsMQMOtEvwDpj5Hczer5ixjn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9b1-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9b1-12.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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	2024-04-15_3720cf57d16e0c2409d49ee40f21c545_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4864	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 2168 wrote to memory of 4864	2168	2024-04-15_3720cf57d16e0c2409d49ee40f21c545_cryptolocker.exe	86
PID 2168 wrote to memory of 4864	2168	2024-04-15_3720cf57d16e0c2409d49ee40f21c545_cryptolocker.exe	86
PID 2168 wrote to memory of 4864	2168	2024-04-15_3720cf57d16e0c2409d49ee40f21c545_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-15_3720cf57d16e0c2409d49ee40f21c545_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_3720cf57d16e0c2409d49ee40f21c545_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4864

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
45KB

MD5
be21b870e7eb7b0b4035ff00cf2efcc9

SHA1
eef8098cd7aaa55c2166ddff6a737c8885b89ce7

SHA256
5518e463f02199d9a954cd14460afdcc4c252f8c805cf91f674c869afe1aef4a

SHA512
848d0cd9db6aa4d36178f13b044a984f46b0f4c17eb8ea00159a2cf46fb46e21f9295a012f0553ad6f53ce680d996805bc64e0065d13c33ba298a678f04c12aa

Download Submit
memory/2168-0-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2168-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2168-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/4864-17-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4864-18-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download