1d67c4ee003cd57a5b2f295943d30ab733e6896fd7345b3c40ea16b85d852fe8

General

Target
2026-09-29_315cec2053743fe15e728371684ae65d_cryptolocker_elex.exe
Size 44KB
Sample260930-d16b7atdkh
SHA256 1d67c4ee003cd57a5b2f295943d30ab733e6896fd7345b3c40ea16b85d852fe8
MD5 315cec2053743fe15e728371684ae65d
SHA1 1ca702cd31e80152f2e2fb0e45aa4eb5f2413b13
SHA512 7b2934e70b45a28899c6f3684323b9460f05d5c5d163772787ec12613bd4a3c37a6b3bec1858bd60af73917e18b0e177ac1fcc5a5e7f8d31fc57fb86bd805010
SSDEEP 768:Z6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzOM+OQg:Z6QFElP6n+gMQMOtEvwDpjyaYaFAv9g
TLSH
T1D42341396FD51A72D7B7CAB685F786C3B926B8237921890D50CE27014D33B02EDA1D1E
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/0x001000000001b1bc-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x001000000001b1bc-12.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
4496	asih.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	asih.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	asih.exe

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	2026-09-29_315cec2053743fe15e728371684ae65d_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 5848 wrote to memory of 4496	5848	2026-09-29_315cec2053743fe15e728371684ae65d_cryptolocker_elex.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-09-29_315cec2053743fe15e728371684ae65d_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-29_315cec2053743fe15e728371684ae65d_cryptolocker_elex.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5848
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Modifies system certificate store
  PID:4496

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

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 44KB
SHA256 e00fad3863a7bce3ea4d58e148b156b6c018b3c4c322599c664dc1ecf546be47
MD5 ec2951d1a3c88e3b643269360d6c96c1
SHA1 038777b268e62c8031e8a9849019cab0eeae6e53
SHA512 a90691c18b620cca64d4b67538d2a16590df93bbff885e9a2c7180765cfa02ae3580043f2b50075ee8ec2dc918dc6d17053336fd6ad2bdcd44814c379f8a849e
SSDEEP 768:Z6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzOM+OQF:Z6QFElP6n+gMQMOtEvwDpjyaYaFAv9F
TLSH
T11F2341396FD51A72D7B7CAB685F786C3B926B8237921890D50CE27014D33B02EDA1D1E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4496-18-0x0000000002130000-0x0000000002136000-memory.dmp

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memory/4496-24-0x00000000007E0000-0x00000000007E6000-memory.dmp

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memory/5848-0-0x00000000021B0000-0x00000000021B6000-memory.dmp

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memory/5848-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

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memory/5848-8-0x00000000021B0000-0x00000000021B6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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