15d799f4d08ad4ea32db3a9342d6cd2479dc7102ce6eebe2213906af2e4246fc

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
09-06-2024 03:19

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General

Target

2024-06-09_f04a84c03a201bb5e3c5c6a039e4f3c5_cryptolocker.exe
Size

50KB
MD5

f04a84c03a201bb5e3c5c6a039e4f3c5
SHA1

bf786d5826775bc966e98933b313ce9c99b0ce0d
SHA256

15d799f4d08ad4ea32db3a9342d6cd2479dc7102ce6eebe2213906af2e4246fc
SHA512

e4bd22e7d505e2db9969264972ed8b7fe1d21589a126314d58bee9e88770edfe2e45bf84ffa63f56bea53573a0d201f20b1669c21bc22aa5a29644c4508e0486
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfj:X6QFElP6n+gJBMOtEvwDpjBtEdXfj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023288-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023288-12.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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	2024-06-09_f04a84c03a201bb5e3c5c6a039e4f3c5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4212	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 4556 wrote to memory of 4212	4556	2024-06-09_f04a84c03a201bb5e3c5c6a039e4f3c5_cryptolocker.exe	81
PID 4556 wrote to memory of 4212	4556	2024-06-09_f04a84c03a201bb5e3c5c6a039e4f3c5_cryptolocker.exe	81
PID 4556 wrote to memory of 4212	4556	2024-06-09_f04a84c03a201bb5e3c5c6a039e4f3c5_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-09_f04a84c03a201bb5e3c5c6a039e4f3c5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_f04a84c03a201bb5e3c5c6a039e4f3c5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4212

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

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Downloads

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

Filesize
50KB

MD5
f503e13b4569dfda3994f09e5b5e10ea

SHA1
eace9a163deb30251b589112624d53c6cfda36d8

SHA256
749c0590f97d26286508e52c377c1923ea7f694961886e02ade3c7e2d4e69d84

SHA512
531351ca97c553a6b415a6b59110daefa37265a3a0932d7e09909a8eda21fa51c1e43659a917445ef39b14255cad243a112302a866fe81963d3391ca45069d8a

Download Submit
memory/4212-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4212-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4556-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4556-1-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4556-8-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download