2e9f99cae9c23f42e194a0c33a1471f74250eef70cb6edde88a8410ee35efee5

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 03:49

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General

Target

2024-04-16_741235b385975d62a951185c1358f8d1_cryptolocker.exe
Size

49KB
MD5

741235b385975d62a951185c1358f8d1
SHA1

24e3f05218554b4e65013b96521c6b4d93bdfab0
SHA256

2e9f99cae9c23f42e194a0c33a1471f74250eef70cb6edde88a8410ee35efee5
SHA512

5a92a98e649c229e1b5685a0404e141a63a613aa7d6903a92b7ef69b7e605286ce2450a35e93ea32ba9acd7e1eaa577741763d401a130dc3cbd44c034dc60df6
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZj:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-16_741235b385975d62a951185c1358f8d1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2332	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 460 wrote to memory of 2332	460	2024-04-16_741235b385975d62a951185c1358f8d1_cryptolocker.exe	84
PID 460 wrote to memory of 2332	460	2024-04-16_741235b385975d62a951185c1358f8d1_cryptolocker.exe	84
PID 460 wrote to memory of 2332	460	2024-04-16_741235b385975d62a951185c1358f8d1_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-16_741235b385975d62a951185c1358f8d1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_741235b385975d62a951185c1358f8d1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:460
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2332

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
49KB

MD5
98e355cbdf58e035460b2b524ef75e0a

SHA1
b6fcc772afd156853e75cb10ef3957f975be2966

SHA256
099a56844123d9a99f4305281698e15b07d9c7679809e30967fd38a7bddfb2b1

SHA512
77873189c86e357326c07637a6b2fca6f62a874f0da310d0c89bafe497006265a53e3e38238217a4398c4d29714704e4fb2fae47da2118fa76d04803f77f9cf1

Download Submit
memory/460-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/460-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/460-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/2332-17-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/2332-18-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download