Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 12:55
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-03_19a3320f26d57d409888ccce5fc9ba9a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-03_19a3320f26d57d409888ccce5fc9ba9a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260710-en
5 signatures
150 seconds
General
- Target 2026-08-03_19a3320f26d57d409888ccce5fc9ba9a_cryptolocker_elex.exe
- Size 1.0MB
- Sample260804-p5tpqsxsfx
- SHA256 3f346cc27ac253cf5a3f0d4d2d4d3ccd7b87b41633db1cfd75675df52ada1a60
- MD5 19a3320f26d57d409888ccce5fc9ba9a
- SHA1 f3454ae04bea898f8e2ab5098df672c4c4b95a0c
- SHA512 751240299c60a446bad08034af3ca4ca509c0a2af05c09e3b61aecbb36cbfa187c6b722ef15f1dc0d0cda0408caa8dcb597ec035245c55cbb24b23e9d5e3092c
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq8:bGbvflT/ZFIjBzhxwOgXKarY1iBl
- TLSH T1582509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5112-8-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001b301-13.dat CryptoLocker_rule2 behavioral2/memory/2828-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2828-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2828 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 2026-08-03_19a3320f26d57d409888ccce5fc9ba9a_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 5112 wrote to memory of 2828 5112 2026-08-03_19a3320f26d57d409888ccce5fc9ba9a_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-03_19a3320f26d57d409888ccce5fc9ba9a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-03_19a3320f26d57d409888ccce5fc9ba9a_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5112 -
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:2828
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 1.0MB
- SHA256 48a5d620a271882ed03d7bda7dc9667292c127c26c4f3191b4f824c1828a201f
- MD5 3deec5d2816602ccefd81dc868efaab4
- SHA1 4361b668a1f2ba3a1ab71a21e85f2e69dc098eab
- SHA512 b2426a83a6176b32bf82be9e3fae102e79d390768da86084a3deff0a8aeb781e88d81c9bcba4f054a22d5e50beed27eea51cc8e17e7a274b7b8ccd47ccd39d78
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqf:bGbvflT/ZFIjBzhxwOgXKarY1iBa
- TLSH T18D2509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH