18aaed27cd118f900e4c1e5b24fbe75551a1730ce9447a13477f595a2e03a129

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/09/2024, 06:18

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General

Target

2024-09-15_cc40cdd329d4e1ce31b7d4bd212832c1_cryptolocker.exe
Size

53KB
MD5

cc40cdd329d4e1ce31b7d4bd212832c1
SHA1

fbcd5c8d3adb2a334d0b00d6f78f91aa5f0defab
SHA256

18aaed27cd118f900e4c1e5b24fbe75551a1730ce9447a13477f595a2e03a129
SHA512

3560c56be37d1f007926a7426b41f7f591d21a1e8421fd2bd0e2625630ca9865455246878853f90d150a4ed4f1ae8708ad12a3b4ebea472ceb0d3103ba971f64
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOm8:z6QFElP6n+gKmddpMOtEvwDpj31im8

Score

7^/10

discovery upx

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-15_cc40cdd329d4e1ce31b7d4bd212832c1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3916-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023458-13.dat	upx
behavioral2/memory/3916-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/2776-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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	2024-09-15_cc40cdd329d4e1ce31b7d4bd212832c1_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 3916 wrote to memory of 2776	3916	2024-09-15_cc40cdd329d4e1ce31b7d4bd212832c1_cryptolocker.exe	86
PID 3916 wrote to memory of 2776	3916	2024-09-15_cc40cdd329d4e1ce31b7d4bd212832c1_cryptolocker.exe	86
PID 3916 wrote to memory of 2776	3916	2024-09-15_cc40cdd329d4e1ce31b7d4bd212832c1_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-09-15_cc40cdd329d4e1ce31b7d4bd212832c1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_cc40cdd329d4e1ce31b7d4bd212832c1_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3916
- 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:2776

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

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Downloads

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

Filesize
54KB

MD5
c5523ef0ff34b2e4086491e6f8de2b6f

SHA1
03110f536ab9decbefab7bd63941fa73cae24555

SHA256
44445c020d442b0e937565abe2c177616fa38c0e365e7c4ca6dcbb9ecd05e786

SHA512
74ca36420cc84155cd2027dc633fa0f869663af84e9a1f10952d827caf502a6eaea1ff0c0a0a21c416cfe3620ccd3b19350680728f4b32ee2255613d1c5aad09

Download Submit
memory/2776-19-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/2776-25-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/2776-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3916-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3916-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3916-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3916-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/3916-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download