Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
14/07/2026, 03:52
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-14_5d8ad53a7fdd6fd3712f8ed581c2a347_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-14_5d8ad53a7fdd6fd3712f8ed581c2a347_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-14_5d8ad53a7fdd6fd3712f8ed581c2a347_cryptolocker_elex.exe
- Size 1.0MB
- Sample260714-efk17af13v
- SHA256 330cd6eab41465e2da32e018d0847072776c002fcf764013aae0f7c745afc755
- MD5 5d8ad53a7fdd6fd3712f8ed581c2a347
- SHA1 034bdc65a48593ebd5f86e9bd9c714e02adfca93
- SHA512 40f4d5e6f3c9ec8978ae4521da4b577a218895de32011bd24d313aec97381c69338545a4027644b34247ef0334ee948b155b05ffffb2765a0e80470c2c9123dd
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq2:bGbvflT/ZFIjBzhxwOgXKarY1iBj
- TLSH T1A32519BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1464-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c00000001af5c-13.dat CryptoLocker_rule2 behavioral2/memory/4596-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4596-20-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4596 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 2026-07-14_5d8ad53a7fdd6fd3712f8ed581c2a347_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 1464 wrote to memory of 4596 1464 2026-07-14_5d8ad53a7fdd6fd3712f8ed581c2a347_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-14_5d8ad53a7fdd6fd3712f8ed581c2a347_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-14_5d8ad53a7fdd6fd3712f8ed581c2a347_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1464 -
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:4596
-
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 46734f2973dcfbef07e9625cf8d91ca3b3a0014fc18fce53555e335e8b81872e
- MD5 d677d3bc90ee85af21a5408de82c065f
- SHA1 30dd317f8b23edd22aba4c531c73055252bf94b3
- SHA512 b627688a34134cb29dbd20cbd7ea35b36690e959c393a2e689bcb2247c98f7da9e7091e94974a7cbbb3e079c63ec7c94bb81944c89149d171b8639fd0a6afb01
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqm:bGbvflT/ZFIjBzhxwOgXKarY1iBr
- TLSH T1572509BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH