1a26b3c1d99bb56c2dde6a0cd348243963a257d819d8c177120456ddb6a9cbb4

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 00:28

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General

Target

2024-02-19_413ab5cb267bbe843f27aa3c04375ec1_cryptolocker.exe
Size

32KB
MD5

413ab5cb267bbe843f27aa3c04375ec1
SHA1

dcab62176925e9add93cf5e132e0a4a1e89009cd
SHA256

1a26b3c1d99bb56c2dde6a0cd348243963a257d819d8c177120456ddb6a9cbb4
SHA512

5bf9099663da7efca9657c6c12d3bdd439e672cf98cc4c7bacf5613682acd0b740effc62b9d59cb6cf7fc6de53bd0735227f3910f7efaa899b6b63c701ece9b9
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B+OOs:b7o/2n1TCraU6GD1a4Xt9hn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231fc-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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-02-19_413ab5cb267bbe843f27aa3c04375ec1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
804	rewok.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 2696 wrote to memory of 804	2696	2024-02-19_413ab5cb267bbe843f27aa3c04375ec1_cryptolocker.exe	85
PID 2696 wrote to memory of 804	2696	2024-02-19_413ab5cb267bbe843f27aa3c04375ec1_cryptolocker.exe	85
PID 2696 wrote to memory of 804	2696	2024-02-19_413ab5cb267bbe843f27aa3c04375ec1_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-19_413ab5cb267bbe843f27aa3c04375ec1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_413ab5cb267bbe843f27aa3c04375ec1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:804

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\rewok.exe

Filesize
32KB

MD5
836e6c1263f76a828de9d80ab9f657a6

SHA1
90ca75c0dd5bffd7d436ceba1034f3c9cc31e4b2

SHA256
8ce709a17c42cee35cf3490d3d5b8ce451f36cec2a18402e0bee64a9d4988ace

SHA512
b7d9207a4dd099bf7b81f46baec351d8f354c43e02883d277d816e61910cafc16f24a7550b87f10664841b91185bf6ac2be80a57ca2031afe069bbd289dac293

Download Submit
memory/804-20-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2696-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2696-1-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2696-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download