cce89171bc98e1c56d42d46131712a863cc4f5dd4b9becc3e5a1ddaa67d26530

Analysis

max time kernel
146s
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
19/03/2024, 16:01

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General

Target

2024-03-19_89cb6a22c4396bae9d257c4445b66da7_cryptolocker.exe
Size

75KB
MD5

89cb6a22c4396bae9d257c4445b66da7
SHA1

34ea15d1f734eb12d6bf5466440f9f3ebd54c3a4
SHA256

cce89171bc98e1c56d42d46131712a863cc4f5dd4b9becc3e5a1ddaa67d26530
SHA512

bde0dd029d54286aab3a34e60feb81d8f6ca8b7685f8383a54ecb3f20a2bdc500bb201c76b727970a5f9f0a7679899c13dc9c2f7a277b3a4472e339e0c2cc992
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1six:X6a+SOtEvwDpjBZYvQd27

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022708-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000022708-12.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-19_89cb6a22c4396bae9d257c4445b66da7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3280	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 1952 wrote to memory of 3280	1952	2024-03-19_89cb6a22c4396bae9d257c4445b66da7_cryptolocker.exe	91
PID 1952 wrote to memory of 3280	1952	2024-03-19_89cb6a22c4396bae9d257c4445b66da7_cryptolocker.exe	91
PID 1952 wrote to memory of 3280	1952	2024-03-19_89cb6a22c4396bae9d257c4445b66da7_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-19_89cb6a22c4396bae9d257c4445b66da7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_89cb6a22c4396bae9d257c4445b66da7_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:3280

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
75KB

MD5
446d96a2f283145cc814539f9ee2f764

SHA1
e7aafba1f907538caa7abe93b1dd9c3232f2e33e

SHA256
2c56d2ea23a4b5da24bdf2cce12ae393c55d7482b1929bee9aae98c9ac94073e

SHA512
f8c3f92ce4562101e92213274bf880aa065b377cd8e55a1cfdb8de7fe513a5b9fbcd48e3efda6b2066d0794edf83468644160268a057189e78ef1ffef77a6365

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

Filesize
24KB

Download
memory/1952-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1952-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download