ac3ffc2da0bb5d6d2bef069b144211856f587a07a2ecc5a657c624be48ba6736

Analysis

max time kernel
148s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/08/2026, 09:14

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General

Target
2026-08-17_67fd4f9979dd990ab409856b52d40f6f_cryptolocker_elex.exe
Size 51KB
Sample260817-k7amesgp81
SHA256 ac3ffc2da0bb5d6d2bef069b144211856f587a07a2ecc5a657c624be48ba6736
MD5 67fd4f9979dd990ab409856b52d40f6f
SHA1 366155ba1a8d2e281913d4e4084aaf189c6d2bdf
SHA512 d57225c10c37c8e0d4b7a630c7ee916a2f0f782a3f9436dff2c414f8a63d26487b51006f03acf953aa5799bc0dbcfe01eefe6c56f27676314e9f62ba0dfcb86e
SSDEEP 768:Z6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzOQjGLg:Z6QFElP6n+gMQMOtEvwDpjyaYaFAeGLg
TLSH
T161333F386FD51A72E377CAB685F782C3B922B8237822990D50CE17414D33B56EDA1D1E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery spyware trojan

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000011377-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000011377-12.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
4168	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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-17_67fd4f9979dd990ab409856b52d40f6f_cryptolocker_elex.exe

Modifies system certificate store 2 TTPs 2 IoCs

defense_evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\BDB1B93CD5978D45C6261455F8DB95C75AD153AF	asih.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\BDB1B93CD5978D45C6261455F8DB95C75AD153AF\Blob = 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	asih.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 4168	1396	2026-08-17_67fd4f9979dd990ab409856b52d40f6f_cryptolocker_elex.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-17_67fd4f9979dd990ab409856b52d40f6f_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-17_67fd4f9979dd990ab409856b52d40f6f_cryptolocker_elex.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1396
- 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
  - Modifies system certificate store
  PID:4168

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

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

asih.exe

Path C:\Users\Admin\AppData\Local\Temp\asih.exe
Size 51KB
SHA256 1cbb82182b053d889e6b8164e6c7c471a1f1a13f4f206216c71462cb00505ca7
MD5 e9d36a1d5179dbdc19c3ca3ed63188bf
SHA1 d9f32c8b0555b2ff71067480f387c878f1e9c92f
SHA512 c323db70a937c5f8d86f020299524852a0319aef9e1510322d375e1a89362185be3929579d60d07ea22b14c4207c4bff275d6641fb0050c1e9b4503d56d37762
SSDEEP 768:Z6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzOQjGLV:Z6QFElP6n+gMQMOtEvwDpjyaYaFAeGLV
TLSH
T1A2333F386FD51A72E377CAB685F782C3B926B8237822990D50CE17414C33B56EDA1D1E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1396-0-0x0000000000810000-0x0000000000816000-memory.dmp

Download

memory/1396-1-0x0000000000810000-0x0000000000816000-memory.dmp

Download

memory/1396-2-0x0000000000830000-0x0000000000836000-memory.dmp

Download

memory/4168-18-0x0000000002110000-0x0000000002116000-memory.dmp

Download

memory/4168-24-0x00000000006E0000-0x00000000006E6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads