0ffd730fca3372bb5d040b695266685d3a1f5d2d09b16dd9bccbd887e761ded9

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 17:42

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General

Target

2024-02-24_5d8c51d16d55d8ca2f34f0ef973f28a5_cryptolocker.exe
Size

38KB
MD5

5d8c51d16d55d8ca2f34f0ef973f28a5
SHA1

8e7a519f236d8098c54b4f59ce196099824b82ff
SHA256

0ffd730fca3372bb5d040b695266685d3a1f5d2d09b16dd9bccbd887e761ded9
SHA512

8328010bdb8926ab821b76f3ad7edd0c4b41bed6be395a4edbf6d3a29f4aa4ba65f8a4bacffd4868115a698b4591eb49339106dd6051fc77c00ae556819b7edb
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenR/:ZzFbxmLPWQMOtEvwDpjLeR/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f1-13.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-1-5-21-1790404759-2178872477-2616469472-1000\Control Panel\International\Geo\Nation	2024-02-24_5d8c51d16d55d8ca2f34f0ef973f28a5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4120	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 1900 wrote to memory of 4120	1900	2024-02-24_5d8c51d16d55d8ca2f34f0ef973f28a5_cryptolocker.exe	92
PID 1900 wrote to memory of 4120	1900	2024-02-24_5d8c51d16d55d8ca2f34f0ef973f28a5_cryptolocker.exe	92
PID 1900 wrote to memory of 4120	1900	2024-02-24_5d8c51d16d55d8ca2f34f0ef973f28a5_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-02-24_5d8c51d16d55d8ca2f34f0ef973f28a5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_5d8c51d16d55d8ca2f34f0ef973f28a5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4120

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
38KB

MD5
7e1f04115d96160b33bc7470708c75fd

SHA1
5bd8f5f61002cce9d678988a7eeeb252eef1f7f6

SHA256
c010c1b7170205d1c95fb4612a9b891e15d496b4494062af425e3db8977c2de8

SHA512
ff9358a662e5b4cf6249fbac0f0fe00e7d912d8388556198474b09abab3bdfecbff6ac1b4281b14eb27d24cb0caa4edd4e9b49c2f8a0efe09c61b30e9457ba0c

Download Submit
memory/1900-0-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/1900-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1900-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1900-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1900-17-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/4120-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4120-20-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4120-21-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download