5bd17c0a904ef28ca944da34dec15f60319823cd800f27aa105187cded2dfd51

Analysis

max time kernel
148s
max time network
141s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
18/07/2026, 10:39

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General

Target
2026-07-18_a881fba424acbe237c1ff4122618e31f_cryptolocker_elex.exe
Size 54KB
Sample260718-mp5e7abz41
SHA256 5bd17c0a904ef28ca944da34dec15f60319823cd800f27aa105187cded2dfd51
MD5 a881fba424acbe237c1ff4122618e31f
SHA1 1a5a4bfe29ec5e84f122d9da9732a61811bb90a0
SHA512 65ec660b3dd037e7b5cad70a263f399b8056ae46edb9b0e4f3d645cb37d618e9ed5eb405eaa585acb6afb8f457a80a0fa5449785dc6a7397546b9892844f6844
SSDEEP 1536:Z6QFElP6n+gMQMOtEvwDpjyaYaFAeG/Y87:Z6a+pOtEvwDpjv94
TLSH
T190430F386FD51A72E377CAB585F682C3B936B8227C22990D50CE17414C33B56EDA1E1E
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/0x0007000000016b3a-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000016b3a-12.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
4136	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	2026-07-18_a881fba424acbe237c1ff4122618e31f_cryptolocker_elex.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.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 5484 wrote to memory of 4136	5484	2026-07-18_a881fba424acbe237c1ff4122618e31f_cryptolocker_elex.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-07-18_a881fba424acbe237c1ff4122618e31f_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-18_a881fba424acbe237c1ff4122618e31f_cryptolocker_elex.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5484
- 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:4136

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 54KB
SHA256 3c6cb834de3c1d622367dcb2520eb74d2e384ffda56eccf3da380453e2f68f96
MD5 9bae547f9ea05a80ea2c9d9721e1e5d1
SHA1 46f3d086d1bc0986d5ba188c0d21052c43686e32
SHA512 299f9021772e3327224349143d7f3d514311e390049b6910a3701a846d853d3f0ae1a5efed247ebe935fe617367ab15b1fe155d0f4555539c8b83994a81a9675
SSDEEP 1536:Z6QFElP6n+gMQMOtEvwDpjyaYaFAeG/Y8W:Z6a+pOtEvwDpjv9h
TLSH
T17D431F386FD51A72E377CAB585F682C3B936B8227C22990D50CE17450C33B56EDA1E1E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4136-19-0x00000000021D0000-0x00000000021D6000-memory.dmp

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memory/4136-18-0x0000000000810000-0x0000000000816000-memory.dmp

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memory/5484-0-0x0000000002240000-0x0000000002246000-memory.dmp

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memory/5484-2-0x0000000002260000-0x0000000002266000-memory.dmp

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memory/5484-1-0x0000000002240000-0x0000000002246000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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