6586c54421f9f74091fd1d6a860599206ff93c53ad15fdbef8156c80f4df0302

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2024 15:14

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General

Target

2024-01-03_38224bf3d84c25096a0af801b2e80865_cryptolocker.exe
Size

44KB
MD5

38224bf3d84c25096a0af801b2e80865
SHA1

b4186a7efc90ac729a935e6489c944594690837d
SHA256

6586c54421f9f74091fd1d6a860599206ff93c53ad15fdbef8156c80f4df0302
SHA512

cfde2293050a177a32454c23e11b4b6f12e756e45b2ce864c6e68c0f0007b7e30f5c5f9cf3f646b00470fec4968c6e172bd9599e87ec5aa1a6659d2c6487f000
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUv:vj+jsMQMOtEvwDpj5Hczer5i8

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	2024-01-03_38224bf3d84c25096a0af801b2e80865_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4696	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 4708 wrote to memory of 4696	4708	2024-01-03_38224bf3d84c25096a0af801b2e80865_cryptolocker.exe	93
PID 4708 wrote to memory of 4696	4708	2024-01-03_38224bf3d84c25096a0af801b2e80865_cryptolocker.exe	93
PID 4708 wrote to memory of 4696	4708	2024-01-03_38224bf3d84c25096a0af801b2e80865_cryptolocker.exe	93

C:\Users\Admin\AppData\Local\Temp\2024-01-03_38224bf3d84c25096a0af801b2e80865_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-03_38224bf3d84c25096a0af801b2e80865_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4708
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4696

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
05b3ff3434dfbcbe1c93d0e4d443453f

SHA1
e02df32f6b8bd2071f5321bdd8d5fa6eddc909b1

SHA256
54c56667c0b686590acb6ffb1acadf801988f113b56f8b029735e880a171ac17

SHA512
d83d4b2d6ee51b29d1154b79fe2b98fbd934f42db7af4128439c39527d3b6eb5c3829a7e5053f6dfad4359d3ece62181cff9db0aba8331d71c29eb733ca0ff6c

Download Submit
C:\Users\Admin\AppData\Local\Temp\misids.exe

Filesize
315B

MD5
a34ac19f4afae63adc5d2f7bc970c07f

SHA1
a82190fc530c265aa40a045c21770d967f4767b8

SHA256
d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

SHA512
42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

Download Submit
memory/4696-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4696-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4708-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/4708-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4708-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download