2a634060f2dc1cd9e27d2e9c4ca57f18e1a85cae5282e6389fe9b92b6e1b61dc

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-10-2024 00:29

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General

Target

2024-10-13_b7efdeb098667f517b97288ef1a3f1df_cryptolocker.exe
Size

35KB
MD5

b7efdeb098667f517b97288ef1a3f1df
SHA1

e890c8545d913de075b5e50ff98a6164a3a85d42
SHA256

2a634060f2dc1cd9e27d2e9c4ca57f18e1a85cae5282e6389fe9b92b6e1b61dc
SHA512

d24eb5a6174f5a50fc54d88b65177a83d4e4a965b48d68beaf47d00dd187af8ddfd02e6e7873a76c2480731662a4d723ed3fc0e2d47e35b07509d8e169c499d9
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEYv:YGzl5wjRQBBOsP1QMOtEvwDpjgarrA

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2024-10-13_b7efdeb098667f517b97288ef1a3f1df_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2052	asih.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	2024-10-13_b7efdeb098667f517b97288ef1a3f1df_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 2052	4536	2024-10-13_b7efdeb098667f517b97288ef1a3f1df_cryptolocker.exe	86
PID 4536 wrote to memory of 2052	4536	2024-10-13_b7efdeb098667f517b97288ef1a3f1df_cryptolocker.exe	86
PID 4536 wrote to memory of 2052	4536	2024-10-13_b7efdeb098667f517b97288ef1a3f1df_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-13_b7efdeb098667f517b97288ef1a3f1df_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_b7efdeb098667f517b97288ef1a3f1df_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2052

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
35KB

MD5
3eb865b064568f51322ac64f8fca72e5

SHA1
22ffe8d42b4d4771d61b6ee62262075cf98296f4

SHA256
9df66a4e0a534eeb688dc069e0280c35346d1806b80644e8f14a33902169a130

SHA512
cd220ac575a2a764b7e437936b14e07178af5166bc88c8dd4b2091cc58ad40131e5e1f6da4dca38932f78b2530d5f2de175dba0c0bd16ea5597817650573bdf2

Download Submit
memory/2052-20-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2052-19-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/2052-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4536-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4536-1-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/4536-2-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download
memory/4536-3-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4536-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download