e4dd97898bfdc2a7694943c177ec039a1c357e0243a4a8d2a65d816c374699cb

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
21/05/2024, 05:31

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General

Target

2024-05-21_e8e1e01565a9c64523fdc4f2ee8d7512_cryptolocker.exe
Size

44KB
MD5

e8e1e01565a9c64523fdc4f2ee8d7512
SHA1

a5e43704a8a92cc8fc2c9856b0958884dfd0ec06
SHA256

e4dd97898bfdc2a7694943c177ec039a1c357e0243a4a8d2a65d816c374699cb
SHA512

2e9033feac627939911e04d8dc30f8401c418505586e4d341ee2e74b32243bf7a36086620a968675735863f6149e9df900460f926ea8a60c89ecc1494f457263
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9H78:X6QFElP6n+gJQMOtEvwDpjBmzDkWDt78

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023308-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023308-12.dat	CryptoLocker_set1

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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-05-21_e8e1e01565a9c64523fdc4f2ee8d7512_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1536	asih.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 2856 wrote to memory of 1536	2856	2024-05-21_e8e1e01565a9c64523fdc4f2ee8d7512_cryptolocker.exe	83
PID 2856 wrote to memory of 1536	2856	2024-05-21_e8e1e01565a9c64523fdc4f2ee8d7512_cryptolocker.exe	83
PID 2856 wrote to memory of 1536	2856	2024-05-21_e8e1e01565a9c64523fdc4f2ee8d7512_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-21_e8e1e01565a9c64523fdc4f2ee8d7512_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_e8e1e01565a9c64523fdc4f2ee8d7512_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1536

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\asih.exe

Filesize
44KB

MD5
47648f38841aca522d7df5826b2fb1b7

SHA1
3742dabb10daa122be7cdb73ffabfd4ed5ef2f95

SHA256
7338f3465316bcf5f538b27b20567a7096fd1b9de21f2a6868f50cbe9734abea

SHA512
20e0e60e7d63166f61999642b78852e42ca711e9e567a299b237cbac5c2c9c93a5cc4ba84dba68e6c0a6809c567b723ecd8611eeb9b4578d2dc200e550ab8e58

Download Submit
memory/1536-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/1536-23-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/2856-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2856-1-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/2856-8-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download