Analysis
- max time kernel
149s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
01/08/2026, 03:50
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-01_0674104836ed3b27b5213a23acb743cd_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_0674104836ed3b27b5213a23acb743cd_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-01_0674104836ed3b27b5213a23acb743cd_cryptolocker_elex.exe
- Size 42KB
- Sample260801-eeb2wsdc55
- SHA256 7d61b0051affe4c3c4ad8819dcd5efaefcf089b9564b814a8f60943424a240f1
- MD5 0674104836ed3b27b5213a23acb743cd
- SHA1 f3beed18aaacbf5f35018642a0b79249d262c60c
- SHA512 2e940fb8fc814ef9c8f0777bde3f6205c68baf8580da506f29bb6ad423f23b0f305137ceda08501596330b9e1b799cc801b31856598d97aae60ac883b4ad407e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCw:bgGYcA/53GAGgIvFN
- TLSH T19C1374387BE62972E37BDFB586F691C27975B8223D16880D44CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/4076-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x00240000000242e9-13.dat CryptoLocker_rule2 behavioral1/memory/4976-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4976-25-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\Control Panel\International\Geo\Nation 2026-08-01_0674104836ed3b27b5213a23acb743cd_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4976 hasfj.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-01_0674104836ed3b27b5213a23acb743cd_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4076 wrote to memory of 4976 4076 2026-08-01_0674104836ed3b27b5213a23acb743cd_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_0674104836ed3b27b5213a23acb743cd_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_0674104836ed3b27b5213a23acb743cd_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4076 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4976
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 491e03cfca28931e1d4655de0f65744397820b289e55f6d33ef16f24750df5ec
- MD5 fb0740c6b9b299494ddfdc0e76364398
- SHA1 28633e6fba4cd47776e0a9af24c2ab926cd3358f
- SHA512 30286ba9888e3aa2720e11b20f3a5065dabc12055105fb9a7bd4bb6320521fd94b8a24ea154b4f6f68ce6a88f8a830692f0382bd2095a6e67a7fee7e56ce35d6
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCD:bgGYcA/53GAGgIvFC
- TLSH T1361374387BE62972E37BDFB586F691C27975B8223D16980D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH