05304a7acc34770faa682bb6b5187387f5f2614ffa491708f6d5ec53d07f0fc3

Analysis

max time kernel
82s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2024, 10:33

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General

Target

2024-02-18_6b01dd6314d239de6580319d5164bc61_cryptolocker.exe
Size

39KB
MD5

6b01dd6314d239de6580319d5164bc61
SHA1

8b6f10c65485ac628693fc9b6cd56b391ffff957
SHA256

05304a7acc34770faa682bb6b5187387f5f2614ffa491708f6d5ec53d07f0fc3
SHA512

2ce4dde291cceaa7376f83bf51b20e0dbe4cab324265733b7e7cc2b3bf7b6e6f435d52d6e7c1d16694693d04d8d2e0c002f80c445ae6b26ca3a918b9e522292c
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3Nby6Usu:bAvJCYOOvbRPDEgXrNekd7l94i3py/ya

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023154-12.dat	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-18_6b01dd6314d239de6580319d5164bc61_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
632	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 2440 wrote to memory of 632	2440	2024-02-18_6b01dd6314d239de6580319d5164bc61_cryptolocker.exe	84
PID 2440 wrote to memory of 632	2440	2024-02-18_6b01dd6314d239de6580319d5164bc61_cryptolocker.exe	84
PID 2440 wrote to memory of 632	2440	2024-02-18_6b01dd6314d239de6580319d5164bc61_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_6b01dd6314d239de6580319d5164bc61_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_6b01dd6314d239de6580319d5164bc61_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2440
- 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:632

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
39KB

MD5
0936aed9b6df879e7f8abc04c8f774af

SHA1
0d8bed49033035a7b72d7ddb7ac915f6f06d7e90

SHA256
5d471905d0b39c07c723a65496f7ad10e8e5b4be4ae536b2c468d0c23fe04228

SHA512
a7d8ab22e8da6614c1d023f1b1c9e9475effcf6edfab6c71c7021f2ef13424653a9a005f55cf0d94539c52771f3c2e28a36369225d8d45ba147e42ecd201d0e0

Download Submit
memory/632-20-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2440-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2440-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2440-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download