1a8c9e70b8e7069108e89f96ad0ef619bcf65c06c114bc0db3e702df1e225ba2

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
28/04/2024, 23:28

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General

Target

2024-04-28_ca05e2ce654d444d55a70ffd42b1d125_cryptolocker.exe
Size

30KB
MD5

ca05e2ce654d444d55a70ffd42b1d125
SHA1

a732bd9db3ac808693b55b0b3c8f54745cfc1bb5
SHA256

1a8c9e70b8e7069108e89f96ad0ef619bcf65c06c114bc0db3e702df1e225ba2
SHA512

9970b03fd70938f2759451c7abd0d17cb3c789c8e174e665787f7467d1758ba16da26fb2a9c3fadd8a398e5e3cbd9b82de94645623a32de5144c1490d863e9e8
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3v71:bAvJCYOOvbRPDEgXRcJx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b93-12.dat	CryptoLocker_rule2

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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-04-28_ca05e2ce654d444d55a70ffd42b1d125_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3112	demka.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 1652 wrote to memory of 3112	1652	2024-04-28_ca05e2ce654d444d55a70ffd42b1d125_cryptolocker.exe	84
PID 1652 wrote to memory of 3112	1652	2024-04-28_ca05e2ce654d444d55a70ffd42b1d125_cryptolocker.exe	84
PID 1652 wrote to memory of 3112	1652	2024-04-28_ca05e2ce654d444d55a70ffd42b1d125_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-28_ca05e2ce654d444d55a70ffd42b1d125_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_ca05e2ce654d444d55a70ffd42b1d125_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Executes dropped EXE
  PID:3112

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\demka.exe

Filesize
30KB

MD5
4393d108ff57f489c8fc8edb4f5c2f57

SHA1
8d8f25e73fd0fa05dda34e90e1c6927ea2b51a24

SHA256
21803297b9027bc44b1dc9d8cd7950f675f75e8cd262fca5bcd9664e8e88f425

SHA512
1edc3e8cbe58c70efcd66bdb84c8bacf5c0ef8d7d0a259b0db471c8f51579530e31b6e5f65f9ecd7774f88530fb11797c030ec66b631e33ab1a1fc7b07cf01c7

Download Submit
memory/1652-0-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1652-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1652-8-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/3112-25-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download