Analysis
- max time kernel
148s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
24/08/2026, 16:55
Behavioral task
behavioral1
Sample
2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
General
- Target 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260824-vfas8a1clc
- SHA256 72f10f4eb3c832761e59b1224b52bf66041119d59fa7062fab82cc0027c8c74e
- MD5 135e32f719c1b301a84c13a10a4ec945
- SHA1 4b150b3284fc777784385832f76fbd0719ce9500
- SHA512 874294694853ffabc95febde581c4c37ab5ec92dd851112c3c0d11c4574b6c5c408f8cb34ac8394a3002bbbe8037faf7a8729dbc356ba8532125ab0700ca64c0
- SSDEEP 24576:tjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:tTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1AC658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000b000000016ce7-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000b000000016ce7-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 11 IoCs
resource yara_rule behavioral2/memory/4384-0-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/files/0x000b000000016ce7-2.dat UPX behavioral2/memory/2800-3-0x00000000009B0000-0x0000000000A39000-memory.dmp UPX behavioral2/memory/4384-10-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/memory/2800-12-0x00000000009B0000-0x0000000000A39000-memory.dmp UPX behavioral2/memory/2800-22-0x00000000009B0000-0x0000000000A39000-memory.dmp UPX behavioral2/memory/4384-37-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/memory/2800-38-0x00000000009B0000-0x0000000000A39000-memory.dmp UPX behavioral2/memory/2800-40-0x00000000009B0000-0x0000000000A39000-memory.dmp UPX behavioral2/memory/4384-46-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/memory/4384-51-0x0000000000640000-0x00000000006C9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 2800 a5d33468 - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 3 114.114.114.114 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 5 223.5.5.5 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 17 114.114.114.114 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 18 223.5.5.5 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 53 114.114.114.114 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 54 223.5.5.5 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a5d33468 File created C:\Windows\SysWOW64\a5d33468 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a5d33468 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a5d33468 -
resource yara_rule behavioral2/memory/4384-0-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/files/0x000b000000016ce7-2.dat upx behavioral2/memory/2800-3-0x00000000009B0000-0x0000000000A39000-memory.dmp upx behavioral2/memory/4384-10-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/memory/2800-12-0x00000000009B0000-0x0000000000A39000-memory.dmp upx behavioral2/memory/2800-22-0x00000000009B0000-0x0000000000A39000-memory.dmp upx behavioral2/memory/4384-37-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/memory/2800-38-0x00000000009B0000-0x0000000000A39000-memory.dmp upx behavioral2/memory/2800-40-0x00000000009B0000-0x0000000000A39000-memory.dmp upx behavioral2/memory/4384-46-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/memory/4384-51-0x0000000000640000-0x00000000006C9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2fefe0 a5d33468 File opened for modification C:\Windows\4b0e40 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - 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 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a5d33468 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a5d33468 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a5d33468 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a5d33468 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" a5d33468 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a5d33468 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a5d33468 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a5d33468 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a5d33468 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a5d33468 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2800 a5d33468 2800 a5d33468 2800 a5d33468 2800 a5d33468 2800 a5d33468 2800 a5d33468 2800 a5d33468 2800 a5d33468 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4384 2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 2800 a5d33468 Token: SeTcbPrivilege 2800 a5d33468
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4384
-
C:\Windows\Syswow64\a5d33468C:\Windows\Syswow64\a5d334681⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2800
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a5d33468
- Size 1.4MB
- SHA256 32a72a82c5ee69f3d71bbdd1c44e4344dea5f30395c28aba16d247240f5bc339
- MD5 68c8be1537e9bfa31ae368fb7ff54d93
- SHA1 c0e8a7c3a8c30828b7b8b9be5d70d8406aaeb199
- SHA512 f6460ea9f0659e70f812d63006672b3564065076fb22116567627e8d43e7eafe5fb81584e1717e7c345c12ea85c8eb28eed71ee04225947c2c31fd9f5f048391
- SSDEEP 24576:RjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:RTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T152658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH