b53c1a8f92f0c329863d89d2859b8e539e3136ea93e7c6e8b9800b89744a65fb

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
09/08/2024, 15:26

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General

Target

2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe
Size

46KB
MD5

89529267b20432eb7fbab6155601aa76
SHA1

dcfb2c3ce012e6e1d6b903e4dfcc02a7acc43bc5
SHA256

b53c1a8f92f0c329863d89d2859b8e539e3136ea93e7c6e8b9800b89744a65fb
SHA512

900d963967ea6d6e0ca042f6b260cc234b0678c546c77c72e67f32d535fb146f5318cd1c44769f679435c5a8b7c3c5764c89ed8f8def04a2814668ec5cc63535
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zi:bF/y2lFizbR9Xwzi

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2076	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2320	2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2320	2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe
2076	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2076	2320	2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe	29
PID 2320 wrote to memory of 2076	2320	2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe	29
PID 2320 wrote to memory of 2076	2320	2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe	29
PID 2320 wrote to memory of 2076	2320	2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-09_89529267b20432eb7fbab6155601aa76_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
46KB

MD5
913aedf6150e89f896f3b4653a813f2b

SHA1
079ea01d08b87f10da99904e9b65781f22f30091

SHA256
efdb8869d7b8b801cb249a5ea44708648b83e5e862084850cf41becfe2ab137b

SHA512
ce58cd1227005d5f8d83d5f4c8a5fe5f35bd8d1bc37df4977605718bd3c7466014bfef83955a25e668ba499799f0b0b1c363c94c22fb163dafe704a57221f38e

Download Submit
memory/2076-23-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2320-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2320-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2320-8-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download