1025e9ddfcfa481a74ef693223304f1dd374776405a5f862b889318a1853129a

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
25/04/2024, 13:59

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General

Target

2024-04-25_b1d135a466c3f04a5439404c3aa7d752_cryptolocker.exe
Size

36KB
MD5

b1d135a466c3f04a5439404c3aa7d752
SHA1

10da7b22a3e1274992cb7d1a3ec7ab684bdc95bc
SHA256

1025e9ddfcfa481a74ef693223304f1dd374776405a5f862b889318a1853129a
SHA512

beda03e10724580a2982a2f68e68cdcd0113e032bb049721557450beff412409e58c2a71287108feae3cc8143f4ffcabd767b67d20f30a04b546b1844523d0ba
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6c3l8Sz960SPluhg:bAvJCYOOvbRPDEgXRc3SSz3SPx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97a-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-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	2024-04-25_b1d135a466c3f04a5439404c3aa7d752_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3472	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 3656 wrote to memory of 3472	3656	2024-04-25_b1d135a466c3f04a5439404c3aa7d752_cryptolocker.exe	85
PID 3656 wrote to memory of 3472	3656	2024-04-25_b1d135a466c3f04a5439404c3aa7d752_cryptolocker.exe	85
PID 3656 wrote to memory of 3472	3656	2024-04-25_b1d135a466c3f04a5439404c3aa7d752_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-25_b1d135a466c3f04a5439404c3aa7d752_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_b1d135a466c3f04a5439404c3aa7d752_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Executes dropped EXE
  PID:3472

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
37KB

MD5
6a24b80069012ddc5e99efab55a351d6

SHA1
af3554a35847f0425722d7cfd2eb29224b7a3bb2

SHA256
737ec40ccfbecdf6151f7a10d1fa57368e66aebc2143e00ff718e31608cb240a

SHA512
8ab6c9a8b2e512efb19d87e2a870357e7ccbf9598786fdd615a74fd0ed528437b935e8497d28c26fb1f2f8c7f876abfd5238b123f5996bf2a28536cf516639c4

Download Submit
memory/3472-20-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/3656-0-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download
memory/3656-1-0x00000000021F0000-0x00000000021F6000-memory.dmp

Filesize
24KB

Download
memory/3656-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download