2c1a63ec6b3ad0abf03ff84b8784567d555a16a8a136519046eab34a84f52f3a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04/06/2024, 05:46

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General

Target

2024-06-04_a369f792f508cdb7736bd2411adfa9a9_cryptolocker.exe
Size

47KB
MD5

a369f792f508cdb7736bd2411adfa9a9
SHA1

dc266fcfb7d4653356bcdb8da172568041566169
SHA256

2c1a63ec6b3ad0abf03ff84b8784567d555a16a8a136519046eab34a84f52f3a
SHA512

7e21f39c57e63f11ae8184799f58523f36f22396863acebe575772c3a1af7a991dc56a152794236269a13c7bffc241ee1d2d96c37fe621e298b2db3e15c6d5c1
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsJ8i:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3ri

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-04_a369f792f508cdb7736bd2411adfa9a9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2840	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 2296 wrote to memory of 2840	2296	2024-06-04_a369f792f508cdb7736bd2411adfa9a9_cryptolocker.exe	83
PID 2296 wrote to memory of 2840	2296	2024-06-04_a369f792f508cdb7736bd2411adfa9a9_cryptolocker.exe	83
PID 2296 wrote to memory of 2840	2296	2024-06-04_a369f792f508cdb7736bd2411adfa9a9_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-04_a369f792f508cdb7736bd2411adfa9a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-04_a369f792f508cdb7736bd2411adfa9a9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2840

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
47KB

MD5
21b3eea851f2a3f0a71d8de46f7d4f93

SHA1
54230d5c5e0928afec402c44e97e6097866ffc32

SHA256
8a1d94ebfd043b36a57a543a307cbb81623e84aa7d6ecf04dd387383c8d13d6d

SHA512
a1501daa2990f1d0ed736c98ee6acdc8ac029db5685286a7d4090cb5a14fcd954be494abd3ddb0bd443820eb2c9fefe02fb0d0029d54cfc4e826d82764742430

Download Submit
memory/2296-0-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/2296-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2296-8-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/2840-17-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/2840-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download