Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
27/07/2026, 20:02
Behavioral task
behavioral1
Sample
2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260727-ysc1wsda42
- SHA256 b7bed6ff5e0a3a5ee11bb9cb3dc5aecdc48e4bd9a3122183ca9d9c06366f8db2
- MD5 7e21a2000fed50808d96551c17ad0541
- SHA1 a8b634c8149158f87b1a85f56fa2edbd7eea9d3a
- SHA512 22af08314b3cadf4d217bc57e05e65871c468c206813e275e5f6d12b9a6d0c18fbf069c0bafe90e0155ff4d591fbc59e5b82f398d67ce8dc1fac6f89040a4fbf
- SSDEEP 24576:BjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:BTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1B8658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024248-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024248-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral1/memory/1352-0-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral1/files/0x000a000000024248-2.dat UPX behavioral1/memory/4928-3-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral1/memory/1352-12-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral1/memory/4928-15-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral1/memory/1352-29-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral1/memory/4928-30-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX behavioral1/memory/4928-36-0x0000000000CC0000-0x0000000000D49000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4928 559926f6 - 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 6 223.5.5.5 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 48 114.114.114.114 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 49 223.5.5.5 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 5 114.114.114.114 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 17 IoCs
description ioc Process File created C:\Windows\SysWOW64\559926f6 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 559926f6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 559926f6 -
resource yara_rule behavioral1/memory/1352-0-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral1/files/0x000a000000024248-2.dat upx behavioral1/memory/4928-3-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral1/memory/1352-12-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral1/memory/4928-15-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral1/memory/1352-29-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral1/memory/4928-30-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx behavioral1/memory/4928-36-0x0000000000CC0000-0x0000000000D49000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\545e80 559926f6 File opened for modification C:\Windows\172590 2026-07-27_7e21a2000fed50808d96551c17ad0541_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 559926f6 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - 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:" 559926f6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 559926f6 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 559926f6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 559926f6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 559926f6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 559926f6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 559926f6 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 559926f6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 559926f6 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4928 559926f6 4928 559926f6 4928 559926f6 4928 559926f6 4928 559926f6 4928 559926f6 4928 559926f6 4928 559926f6 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 1352 2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4928 559926f6 Token: SeTcbPrivilege 4928 559926f6
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-27_7e21a2000fed50808d96551c17ad0541_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:1352
-
C:\Windows\Syswow64\559926f6C:\Windows\Syswow64\559926f61⤵
- 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:4928
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\559926f6
- Size 1.4MB
- SHA256 839d42b10609577648f5e51d246587bd2ce505398fc4aff247dc7dd02a2fea76
- MD5 3e442790be84423d353a9fa0b852c33a
- SHA1 b3df84462183f5a35b4fb68ec9b357ad788b9f90
- SHA512 c8d8520cf1153dbd6961ae678dc655b49001c0423a6e6081144f0539c9ba8b6141b358a73b6c3719730c45da27b6566607ab683c95b802e8f59b00adb5f50345
- SSDEEP 24576:SjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:STGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T190658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH