408966a8729b13d8f82ae75f1b862f5bbb0f0f51f3581dfd0687c57aba3b0883

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/03/2024, 10:23

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General

Target

2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe
Size

124KB
MD5

04add947290c78972d315e3b9a988050
SHA1

e32a5955bbf929e6df824bae6e97744c2f6cc12b
SHA256

408966a8729b13d8f82ae75f1b862f5bbb0f0f51f3581dfd0687c57aba3b0883
SHA512

c1cc455ca98bba1d9dc43242c8d03458e9f7a5c62b5a542233f9c252a68e29469138119dd8c3ce8efaad5d727524414604114759de189ceedf80042496bdefd0
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgdlS:u6a++OtEvwDpj6ze

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3392	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 3036 wrote to memory of 3392	3036	2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe	89
PID 3036 wrote to memory of 3392	3036	2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe	89
PID 3036 wrote to memory of 3392	3036	2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3392

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
124KB

MD5
7246698e118f01ac3171034f69259382

SHA1
0d78290fe1fb9573e0978cc431c50a1e5af68d1c

SHA256
a845fd4009874e9236ed249ffbff86c36eb633526b9d221b2feb09bb7f106e44

SHA512
0d1806c05b24c4fb30d72190d32e7c544dde3805c0f879946212205d8639f475b8a212e087b50b41ed75e6ce489ce4e0835944e5c406271ab0a13949e79f005e

Download Submit
memory/3036-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3036-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3036-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3392-17-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/3392-23-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download