25eb88028a9a3d5dfd844ca6be4b59e6072e79855d98c332bfd6e8d28c90f044

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 20:47

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General

Target

2024-02-22_f3162826920fa201c5eb58c3cca47697_cryptolocker.exe
Size

44KB
MD5

f3162826920fa201c5eb58c3cca47697
SHA1

725116934798930351216cf6d785268c8825bc9a
SHA256

25eb88028a9a3d5dfd844ca6be4b59e6072e79855d98c332bfd6e8d28c90f044
SHA512

a2f3fa6ba84852fa5fddf0747f412ad8df52409008ba4f83be4b8beb8e5664245d8117bef4644af70a7069ff8cca0d92a8013a727696fe173ce6ccbb2c2e4188
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lBth2fL4UWCb:ZzFbxmLPWQMOtEvwDpj38ltFUWCb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001fc40-13.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-1-5-21-3316742141-2240921845-2885234760-1000\Control Panel\International\Geo\Nation	2024-02-22_f3162826920fa201c5eb58c3cca47697_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
968	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 1588 wrote to memory of 968	1588	2024-02-22_f3162826920fa201c5eb58c3cca47697_cryptolocker.exe	90
PID 1588 wrote to memory of 968	1588	2024-02-22_f3162826920fa201c5eb58c3cca47697_cryptolocker.exe	90
PID 1588 wrote to memory of 968	1588	2024-02-22_f3162826920fa201c5eb58c3cca47697_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-22_f3162826920fa201c5eb58c3cca47697_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_f3162826920fa201c5eb58c3cca47697_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:968

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
44KB

MD5
bdf8195a4d597523a122f375e34b7bec

SHA1
6253967b643f87792e25f86792ac7da57aacb852

SHA256
8c6a510530cb85e2a2d781b5cb12b3666af0cfa0c57127732ba5ebba0a7c8d3c

SHA512
6c662755c110fbdcdfd57709f5dba1eb372ece3b9b5d12a5805e3eef8af979829849817ec8185cff9f39375f566e2f9aee1ec8bc9901ca15184ef08ab75aed9b

Download Submit
memory/968-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/968-20-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1588-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1588-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1588-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1588-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/1588-16-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download