Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 15:38
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe
- Size 27KB
- Sample260820-s23d9aec35
- SHA256 df33fba10ee4db83496b0479817e5aa06931c515f4ddce1f5174009279258ee9
- MD5 46d17faafcca67b5d353b79021de9e64
- SHA1 e6d4c0db2394392f90f408fc45e8a13b65e6f03d
- SHA512 bfa978f076c75c14984651387a02c0cabcffdb5c3f07f7f71a67fc17ccf3c5ce20564ecd0fe75f1fd68fb39eb6820c57e579f4024f708e32700a5ea4092df8b4
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/X2kEz1P:bIDOw9UiaCHfjnE0S2kEzN
- TLSH T1C1C21A35BEA96C22E1777B7014F79242A8797D413B38098FECCF77990A71E62F812109
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1032-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019cb8-13.dat CryptoLocker_rule2 behavioral2/memory/2748-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2748-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2748 lossy.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 2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lossy.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1032 wrote to memory of 2748 1032 2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_46d17faafcca67b5d353b79021de9e64_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1032 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2748
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 27KB
- SHA256 891810ef2a9650d448db44f7839975e9a22befba0b5bfa8c7afac8ec021117af
- MD5 051ee7ca7af7e58738cd45e2e74669a6
- SHA1 aeaa1d71031295e0db20f792a74b114e221ebee0
- SHA512 c06100fa64d83a352377f0422e11a6926b8da3eb0c08b606a7d20024c150c5e36e8a35da48fa17d661be938d2e320a76903d1a24dc0e06d52beb5e68e9a99fe6
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/X2kEz1L:bIDOw9UiaCHfjnE0S2kEzJ
- TLSH T1F0C21A35BEA56C22E1777B7014F79286A8797D413B38098FACCF77990A71E62FC12109
- MD5 SHA1 SHA512 SSDEEP TLSH