a78f155603b69d728fa193a82d1e04a908486ab113f59bc62799d140f4a9be18

General

Target
2026-07-24_a05e9b859f296f35afae53b78e062ffd_coinminer_cryptolocker_elex.exe
Size 49KB
Sample260724-l6afpscj31
SHA256 a78f155603b69d728fa193a82d1e04a908486ab113f59bc62799d140f4a9be18
MD5 a05e9b859f296f35afae53b78e062ffd
SHA1 e781ef82c9ea0a3cd850025787f336506ec12466
SHA512 88ff3958e43dd14347dc3ada20c527ac9c69c10d950c35bd46527a0e44bce4f3a43ce360a94898bbc2129bc4f3c51fba39820816ca103d1caf415ebdea467073
SSDEEP 768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5aFr7YOzzOQjG/1iTfo1:qUmnpomddpMOtEvwDpjjaYaFAeG/Y81
TLSH
T1763310386FD51AB2E377DAB6C5F685C2B936B8237C129D0C50CA17450C23F52ACA1E1E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery spyware trojan upx

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/2552-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000d00000001c5b0-13.dat	CryptoLocker_rule2
behavioral2/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2484-31-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/2552-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000d00000001c5b0-13.dat	CryptoLocker_set1
behavioral2/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2484-31-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/2552-0-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
behavioral2/files/0x000d00000001c5b0-13.dat	UPX
behavioral2/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	UPX
behavioral2/memory/2484-31-0x0000000000500000-0x000000000050F000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2484	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2552-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x000d00000001c5b0-13.dat	upx
behavioral2/memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/2484-31-0x0000000000500000-0x000000000050F000-memory.dmp	upx

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	2026-07-24_a05e9b859f296f35afae53b78e062ffd_coinminer_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 2552 wrote to memory of 2484	2552	2026-07-24_a05e9b859f296f35afae53b78e062ffd_coinminer_cryptolocker_elex.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-07-24_a05e9b859f296f35afae53b78e062ffd_coinminer_cryptolocker_elex.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-24_a05e9b859f296f35afae53b78e062ffd_coinminer_cryptolocker_elex.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- 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:2484

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:4252

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

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 49KB
SHA256 4c3c33fb059b0168b33ac9ffa047282f009d7ef73bdf0f735a9c31eaad2d14a5
MD5 d73c5c3de19f00cb0f8f3b355a27f666
SHA1 42ba741ff56fd1e532c02831a92003522a05243d
SHA512 1c4f83ac0c6ad59c40717a0a8af8977a0b1aaa4bc313db5d2c8698a62fe8d26c79c301500ca2b6e2f965fdbfd7b838f80c63a99d22e38aa4b28be7c8dc95b9ed
SSDEEP 768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5aFr7YOzzOQjG/1iTfol:qUmnpomddpMOtEvwDpjjaYaFAeG/Y8l
TLSH
T1143310386FD51AB2E377DAB6C6F685C2B935B8227C129D0C50CA17450C23F52EDA1E1E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2484-31-0x0000000000500000-0x000000000050F000-memory.dmp

Download

memory/2552-0-0x0000000000500000-0x000000000050F000-memory.dmp

Download

memory/2552-1-0x0000000002250000-0x0000000002256000-memory.dmp

Download

memory/2552-2-0x0000000002250000-0x0000000002256000-memory.dmp

Download

memory/2552-3-0x0000000002270000-0x0000000002276000-memory.dmp

Download

memory/2552-17-0x0000000000500000-0x000000000050F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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