f800fcd49a40999384cfd205c4552a90a418e8ad626e90b3100438926a1fd1c2

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/02/2024, 05:52

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General

Target

2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe
Size

76KB
MD5

6fc5eccc3c6483934f067f892655b093
SHA1

c81edaed33e5705e13cc75295a7bc8707fdd0a3c
SHA256

f800fcd49a40999384cfd205c4552a90a418e8ad626e90b3100438926a1fd1c2
SHA512

473958b523ab26175de09a785b5f456ef7a6b392c29d5f2fb4a2dad483c45191f8b80a693e5e7e3a86aa5b51dc68cac50209420cb4ff676e42bbdf735423fb43
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KuA5A:ZVxkGOtEvwDpjcaf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023209-13.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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4280	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 4460 wrote to memory of 4280	4460	2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe	84
PID 4460 wrote to memory of 4280	4460	2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe	84
PID 4460 wrote to memory of 4280	4460	2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4460
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4280

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
76KB

MD5
dae138536d7de9857e2cc487e4135bb6

SHA1
080e2c8776332bd77005f31857a96c42af1f4f7d

SHA256
c7b9bad52a4550881df0bf3ccde8c75524a7de469b6a50cd561b4e557e5c65e9

SHA512
165418a025cfde61ea83891b1de4f44265209396617a88dd46012c7a3b74adad845b320a1b6c333f24ea2d1f419986f3538e14b92a0d52f9e7e02a8efcbe101c

Download Submit
memory/4280-18-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4280-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4280-22-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/4280-27-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4460-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4460-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4460-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4460-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/4460-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download