c390bb3c9fad5f062e389efb949df071f4665c78c99bead68e1091dd085cc699

General

Target
2026-11-03_71b959c16e32b3f6ded1cb287f494831_cryptolocker_elex.exe
Size 75KB
Sample261104-vn3tzaea64
SHA256 c390bb3c9fad5f062e389efb949df071f4665c78c99bead68e1091dd085cc699
MD5 71b959c16e32b3f6ded1cb287f494831
SHA1 ac979d2d456556c3e51d61fd013f9625ecb546b1
SHA512 b689c4faf38de9c335a8e68b27b2583cc17a63cd123f892e720c05ce8877f59ffc593765995d0e9a611ecc595a97bc00426e7d3b7fbf15eb79041ccc5c4d35d6
SSDEEP 1536:r6QFElP6n+gMQMOtEvwDpj1YTjipvF2bx1PQAei:r6a+pOtEvwDpj1YvQd2Pz
TLSH
T15C7381397AD515B2E2B78A7585F681D2B936BC227D61490F348A330D4C33F52EDA1E0E
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/0x0024000000018899-11.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0024000000018899-11.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
5472	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	2026-11-03_71b959c16e32b3f6ded1cb287f494831_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 6064 wrote to memory of 5472	6064	2026-11-03_71b959c16e32b3f6ded1cb287f494831_cryptolocker_elex.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-11-03_71b959c16e32b3f6ded1cb287f494831_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-03_71b959c16e32b3f6ded1cb287f494831_cryptolocker_elex.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6064
- 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:5472

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 75KB
SHA256 6c4882dc291d09580d04cfeb5d414c194ea28fb88d84125b7be756599b4c4048
MD5 5fe8dd1c21b5b08dbd50d3a53f38c651
SHA1 ef7a9c2801f8f1f312ed120e920028f672f3b2a3
SHA512 ffec3c4e8a628658d3d660b7a9ed089b85410bfcd647b8e70f5869e5b89e0fecd53342d42a2c9cd05492fbb42deb4a70b2984ed1d11e503af8ddda63cbe8ad5b
SSDEEP 1536:r6QFElP6n+gMQMOtEvwDpj1YTjipvF2bx1PQAeo:r6a+pOtEvwDpj1YvQd2P1
TLSH
T13F7381397AD515B2E2B78A7585F681D2B936BC227D61490F348A330D4C33F52EDA1E0E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/5472-18-0x0000000002270000-0x0000000002276000-memory.dmp

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memory/5472-24-0x0000000002250000-0x0000000002256000-memory.dmp

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memory/6064-0-0x0000000002240000-0x0000000002246000-memory.dmp

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memory/6064-1-0x0000000002240000-0x0000000002246000-memory.dmp

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memory/6064-2-0x0000000002260000-0x0000000002266000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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