Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
09/05/2026, 01:04
Behavioral task
behavioral1
Sample
2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260509-be4kcsgz2x
- SHA256 2809e6a490547290c6c75ff71c3973cf3e9b51039abd7d55ec49976d1d528aac
- MD5 9daa863d463890a455185bd5f5d86429
- SHA1 23398f9bf1ac883add12625040525236932c2249
- SHA512 1900bca3e0a964e4012e7525224cb06e48671037736a4435475200b2fbdbfced813eda6eff96df5f6087a3b8c18ed0dc5d34c6678d37e69e407d4a9985e9a6be
- SSDEEP 24576:MjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:MTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T103658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x001900000002a117-2.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x001900000002a117-2.dat CryptoLocker_set1 - Custom signatureUPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/4524-0-0x0000000000E70000-0x0000000000EF9000-memory.dmp UPX behavioral2/files/0x001900000002a117-2.dat UPX behavioral2/memory/3624-3-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral2/memory/4524-18-0x0000000000E70000-0x0000000000EF9000-memory.dmp UPX behavioral2/memory/3624-20-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral2/memory/3624-23-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral2/memory/4524-38-0x0000000000E70000-0x0000000000EF9000-memory.dmp UPX behavioral2/memory/3624-40-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral2/memory/4524-42-0x0000000000E70000-0x0000000000EF9000-memory.dmp UPX behavioral2/memory/4524-62-0x0000000000E70000-0x0000000000EF9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 3624 8cb13639 - 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 12 223.5.5.5 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 1 114.114.114.114 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 11 114.114.114.114 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_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\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8cb13639 File created C:\Windows\SysWOW64\8cb13639 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8cb13639 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 8cb13639 -
resource yara_rule behavioral2/memory/4524-0-0x0000000000E70000-0x0000000000EF9000-memory.dmp upx behavioral2/files/0x001900000002a117-2.dat upx behavioral2/memory/3624-3-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral2/memory/4524-18-0x0000000000E70000-0x0000000000EF9000-memory.dmp upx behavioral2/memory/3624-20-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral2/memory/3624-23-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral2/memory/4524-38-0x0000000000E70000-0x0000000000EF9000-memory.dmp upx behavioral2/memory/3624-40-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral2/memory/4524-42-0x0000000000E70000-0x0000000000EF9000-memory.dmp upx behavioral2/memory/4524-62-0x0000000000E70000-0x0000000000EF9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3e0b50 8cb13639 File opened for modification C:\Windows\4d73d8 2026-05-09_9daa863d463890a455185bd5f5d86429_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 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8cb13639 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 8cb13639 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 8cb13639 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 8cb13639 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 8cb13639 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 8cb13639 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 8cb13639 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 8cb13639 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 8cb13639 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 8cb13639 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3624 8cb13639 3624 8cb13639 3624 8cb13639 3624 8cb13639 3624 8cb13639 3624 8cb13639 3624 8cb13639 3624 8cb13639 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4524 2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 3624 8cb13639 Token: SeTcbPrivilege 3624 8cb13639
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-09_9daa863d463890a455185bd5f5d86429_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-09_9daa863d463890a455185bd5f5d86429_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:4524
-
C:\Windows\Syswow64\8cb13639C:\Windows\Syswow64\8cb136391⤵
- 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:3624
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\8cb13639
- Size 1.4MB
- SHA256 0caed73eab78ec8a1d3ad905c7519d4db546abd5c4e2192dd15fbe02934aebf8
- MD5 64b3ba85de0a4e67522ec04f52d86666
- SHA1 5510892cf773e93aa5b165d6f78650c108037430
- SHA512 9bfb6f0b9d68a3c40d016c84acc932403fff87da7966cff0d3ff1bc92627308b7b0ec837fa4adb78bb7e1e54aba703ae0e3e947a63ad27a5aa361db410774d52
- SSDEEP 24576:XjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:XTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T168658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH