a0c3afd07c027c34f706b791f4197bd4a6ca57e1c1e34ecd32aac24038fefff4

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 01:21

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General

Target

2024-09-07_c4f3bef838c025f7b48cba4d8681f595_cryptolocker.exe
Size

76KB
MD5

c4f3bef838c025f7b48cba4d8681f595
SHA1

27aba9563561a8d29ec1bc8547fbda06ea6bb9fa
SHA256

a0c3afd07c027c34f706b791f4197bd4a6ca57e1c1e34ecd32aac24038fefff4
SHA512

a0d9cae0af2b4749177ad6d87b350db9aff5e9245c08ce94e8cc1e30c4a933520d73d843aa117be4b00a235a8d97fd4e2a6a54ecec02eaf36338b380371c3dd4
SSDEEP

768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMsMXL:u6QFElP6n+gWMOtEvwDpjJGYQb+L

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-07_c4f3bef838c025f7b48cba4d8681f595_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4688	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	2024-09-07_c4f3bef838c025f7b48cba4d8681f595_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 2568 wrote to memory of 4688	2568	2024-09-07_c4f3bef838c025f7b48cba4d8681f595_cryptolocker.exe	85
PID 2568 wrote to memory of 4688	2568	2024-09-07_c4f3bef838c025f7b48cba4d8681f595_cryptolocker.exe	85
PID 2568 wrote to memory of 4688	2568	2024-09-07_c4f3bef838c025f7b48cba4d8681f595_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-07_c4f3bef838c025f7b48cba4d8681f595_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_c4f3bef838c025f7b48cba4d8681f595_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- 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:4688

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
76KB

MD5
2d36f318794628faec99e69d846dd4a5

SHA1
a29160ec3719de512873d2b403eef879c7af8a45

SHA256
f18b8acaa2ca942cfd0b804c3ad99a6f529c777dc20767443971f40beec5bc61

SHA512
44888e8cfabb488a5cfc2be4ec84b6752c7d0f4b8b7ac8f35a6839687cacf005873f36d9417f1efe5cd6360613c1be24b125f7bea3b61bf63b12fda6e73d3804

Download Submit
memory/2568-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2568-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2568-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4688-17-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/4688-23-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download