Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
02/08/2026, 00:30
Behavioral task
behavioral1
Sample
2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260802-atqrdaba23
- SHA256 ddacd91b81a6628504ca4af7b2a82d0e6bd41ff144c6a9a1740f17f40654c4eb
- MD5 7008c1b7730fa6bfb3f93fe717f9622a
- SHA1 7fe117dcdc54f703a7a5e8f947861e5d26c36931
- SHA512 0c3510e1e8f014c51a51ff336f505faedf1dfa0aae668c0381c8a64a52e58479ca96ee750297d468d3c71af23c1dd46bdbe3821641e338cae8e453b7a2552bb8
- SSDEEP 12288:MqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:MjHPOSOkx2LFscU6UQOJdT
- TLSH T121F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x00120000000243ce-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x00120000000243ce-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral1/memory/2396-0-0x0000000000BA0000-0x0000000000C29000-memory.dmp UPX behavioral1/files/0x00120000000243ce-2.dat UPX behavioral1/memory/4460-3-0x0000000000CB0000-0x0000000000D39000-memory.dmp UPX behavioral1/memory/2396-12-0x0000000000BA0000-0x0000000000C29000-memory.dmp UPX behavioral1/memory/4460-14-0x0000000000CB0000-0x0000000000D39000-memory.dmp UPX behavioral1/memory/2396-31-0x0000000000BA0000-0x0000000000C29000-memory.dmp UPX behavioral1/memory/4460-32-0x0000000000CB0000-0x0000000000D39000-memory.dmp UPX behavioral1/memory/2396-48-0x0000000000BA0000-0x0000000000C29000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4460 a19e3bfa - Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 2 114.114.114.114 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 5 223.5.5.5 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 55 114.114.114.114 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 57 223.5.5.5 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 a19e3bfa File created C:\Windows\SysWOW64\a19e3bfa 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a19e3bfa File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a19e3bfa -
resource yara_rule behavioral1/memory/2396-0-0x0000000000BA0000-0x0000000000C29000-memory.dmp upx behavioral1/files/0x00120000000243ce-2.dat upx behavioral1/memory/4460-3-0x0000000000CB0000-0x0000000000D39000-memory.dmp upx behavioral1/memory/2396-12-0x0000000000BA0000-0x0000000000C29000-memory.dmp upx behavioral1/memory/4460-14-0x0000000000CB0000-0x0000000000D39000-memory.dmp upx behavioral1/memory/2396-31-0x0000000000BA0000-0x0000000000C29000-memory.dmp upx behavioral1/memory/4460-32-0x0000000000CB0000-0x0000000000D39000-memory.dmp upx behavioral1/memory/2396-48-0x0000000000BA0000-0x0000000000C29000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4c5b58 a19e3bfa File opened for modification C:\Windows\290538 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_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 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a19e3bfa - 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\Cookies\CachePrefix = "Cookie:" a19e3bfa Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a19e3bfa Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a19e3bfa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a19e3bfa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a19e3bfa Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a19e3bfa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a19e3bfa Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a19e3bfa Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a19e3bfa - Modifies system certificate store 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA a19e3bfa Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 a19e3bfa - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 4460 a19e3bfa 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 2396 2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4460 a19e3bfa Token: SeTcbPrivilege 4460 a19e3bfa
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_7008c1b7730fa6bfb3f93fe717f9622a_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:2396
-
C:\Windows\Syswow64\a19e3bfaC:\Windows\Syswow64\a19e3bfa1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4460
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a19e3bfa
- Size 768KB
- SHA256 1a58618678c9e2fb731855ec186a5dc0ce0fe79283fd420b20e9a722c369f320
- MD5 3d596052e932eae1f8342aec2dfba781
- SHA1 c7487d97e49a41b3c3998047bcdf706c38fe331f
- SHA512 6d3b96cf88870f139c6fe65f78786d661a5a2e4b8d4d8ba62c0be31b31c88424e4b1b36d5895125c5ae7078a3dd5e4a5729334c4c83bcac73c8e975689a7bef9
- SSDEEP 12288:OqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:OjHPOSOkx2LFscU6UQOJdT
- TLSH T1CFF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH