d022e235f703eb8ff55230b1672027f6511a1f9696d25d543a58a26c2e1d7def

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 17:56

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General

Target

2024-02-12_f1a1be1188c768ce231a16dc4bd6a636_cryptolocker.exe
Size

38KB
MD5

f1a1be1188c768ce231a16dc4bd6a636
SHA1

313327b6756a84011aa97c8deef000d5cf3027dc
SHA256

d022e235f703eb8ff55230b1672027f6511a1f9696d25d543a58a26c2e1d7def
SHA512

e2fcdd40cc98064e1ea9e8eb39a9fe1370705283decf5dbefd5be09d36cddc2710dea1a928fa05c0c2fa4fde43b495a3c3a37d5248b9d0ff78639261506c1c45
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3Nby6U6t:bAvJCYOOvbRPDEgXrNekd7l94i3py/da

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\demka.exe	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-02-12_f1a1be1188c768ce231a16dc4bd6a636_cryptolocker.exedemka.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	2024-02-12_f1a1be1188c768ce231a16dc4bd6a636_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

Processes:

demka.exe

pid process

4832 demka.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4832	demka.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-02-12_f1a1be1188c768ce231a16dc4bd6a636_cryptolocker.exe

description	pid	process	target process
PID 3364 wrote to memory of 4832	3364	2024-02-12_f1a1be1188c768ce231a16dc4bd6a636_cryptolocker.exe	demka.exe
PID 3364 wrote to memory of 4832	3364	2024-02-12_f1a1be1188c768ce231a16dc4bd6a636_cryptolocker.exe	demka.exe
PID 3364 wrote to memory of 4832	3364	2024-02-12_f1a1be1188c768ce231a16dc4bd6a636_cryptolocker.exe	demka.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_f1a1be1188c768ce231a16dc4bd6a636_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_f1a1be1188c768ce231a16dc4bd6a636_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3364

C:\Users\Admin\AppData\Local\Temp\demka.exe
"C:\Users\Admin\AppData\Local\Temp\demka.exe"
2⤵
- Checks computer location settings
- Executes dropped EXE
PID:4832

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
38KB

MD5
f39d5a86357cc11f87f5955fa0822f59

SHA1
022f7cfdc63a739494d0aeb2b74ca9982edba859

SHA256
efa6abd2dc2806cf6c4092fb5dcad985d6274b6489ffca829d0e44bda0e73f9c

SHA512
86b89fb1e5da316acda8cb522713b8ddb0cce6d3ca97aa48a5850f97247d77fa2b063f0b3683465056c0c7ccf8e0defdd44f5d4eccc15145f3ad281aadfd910d

Download Submit
memory/3364-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3364-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/3364-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4832-19-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download