198f14d9e246dae36942f76326a97cc26c01b2d99d90b27ab16b8256335ba1c6

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 02:53

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General

Target

2024-05-22_ebd10ce029ce7aeacfbcf1e59a6cf011_cryptolocker.exe
Size

41KB
MD5

ebd10ce029ce7aeacfbcf1e59a6cf011
SHA1

98ebeb7480514725348bff8f5a40d5d5524eb7f4
SHA256

198f14d9e246dae36942f76326a97cc26c01b2d99d90b27ab16b8256335ba1c6
SHA512

eacb48a46fd813312a54b33c14cd1be5a7148bde245650042283cca38e1633a2d9685b3c1898204671974654c715f53262ed1894f47054fb3f6df2547bae4c21
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCjfy:X6QFElP6n+gJQMOtEvwDpjBsYK/f4fy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\asih.exe	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

Processes:

2024-05-22_ebd10ce029ce7aeacfbcf1e59a6cf011_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-05-22_ebd10ce029ce7aeacfbcf1e59a6cf011_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

3528 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3528	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_ebd10ce029ce7aeacfbcf1e59a6cf011_cryptolocker.exe

description	pid	process	target process
PID 1952 wrote to memory of 3528	1952	2024-05-22_ebd10ce029ce7aeacfbcf1e59a6cf011_cryptolocker.exe	asih.exe
PID 1952 wrote to memory of 3528	1952	2024-05-22_ebd10ce029ce7aeacfbcf1e59a6cf011_cryptolocker.exe	asih.exe
PID 1952 wrote to memory of 3528	1952	2024-05-22_ebd10ce029ce7aeacfbcf1e59a6cf011_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_ebd10ce029ce7aeacfbcf1e59a6cf011_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_ebd10ce029ce7aeacfbcf1e59a6cf011_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1952

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:3528

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
42KB

MD5
4c37430fa9d6e884d93e279adb8790e5

SHA1
e4b4e68e70c1e6ebe54b43423ae3c06aedbd01db

SHA256
477e4a6cb9515a282cabe42c9b2266a5c63dd2fed45be3b779b5f9629a0607a1

SHA512
ae9f1a7334670439fb823f9a5601abd65a30d57cc3191e05f216f6ac3a44d4bcc0922936c3a0ba21a00cf6b93e95411d368f8a01a02d3bd910ac1aaf449211e9

Download Submit
memory/1952-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1952-1-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/1952-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3528-17-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/3528-23-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download