1024d349ecbedd52890fb7512e3a868137557d901be47038d1d6f4d5539025d0

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/03/2024, 19:53

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General

Target

2024-03-10_9fcd5498c6e548e0ea5ea514d45fe972_cryptolocker.exe
Size

386KB
MD5

9fcd5498c6e548e0ea5ea514d45fe972
SHA1

9ae78f5386a1553395639bbda42c2d73e64e85f5
SHA256

1024d349ecbedd52890fb7512e3a868137557d901be47038d1d6f4d5539025d0
SHA512

1a35a1c9802ea7fa00d3ecb90fe109c9eef34c2d18496293f8e9024f5b7e8ba65eb52903820276876be816d4c5e01730794dd2a6c4373d9a4527bd51f2f9ec4f
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXX:nnOflT/ZFIjBz3xjTxynGUOUhXX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-12.dat	CryptoLocker_rule2

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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-10_9fcd5498c6e548e0ea5ea514d45fe972_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1428	hasfj.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 4908 wrote to memory of 1428	4908	2024-03-10_9fcd5498c6e548e0ea5ea514d45fe972_cryptolocker.exe	88
PID 4908 wrote to memory of 1428	4908	2024-03-10_9fcd5498c6e548e0ea5ea514d45fe972_cryptolocker.exe	88
PID 4908 wrote to memory of 1428	4908	2024-03-10_9fcd5498c6e548e0ea5ea514d45fe972_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-10_9fcd5498c6e548e0ea5ea514d45fe972_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_9fcd5498c6e548e0ea5ea514d45fe972_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4908
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1428

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\hasfj.exe

Filesize
386KB

MD5
99d62df0be50b76ff361f4387b759638

SHA1
d1fc69500b8ced87be12dba6d0b162f1a04e1885

SHA256
a5640ee210831de8175225cf6ee77c3d3cfa2c7a17bdefd6d2bd72822b0a25ae

SHA512
f198bb7f21352ef32c763469190f782b18ea60b0f2f3e0f0cefbd32651a5c418557e8c50a32a8cc28eb8b4db6a5c70fdfe05a1beef1346a1b855526669608b29

Download Submit
memory/1428-17-0x0000000002270000-0x0000000002276000-memory.dmp

Filesize
24KB

Download
memory/1428-21-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4908-0-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/4908-1-0x00000000007C0000-0x00000000007C6000-memory.dmp

Filesize
24KB

Download
memory/4908-2-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download