Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
05/05/2026, 04:14
Behavioral task
behavioral1
Sample
2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260505-etzfqsgs8v
- SHA256 c89c44544b43f621a3199a3f65db9993524cd6322e5f67c9aa912edc18c58878
- MD5 c4a59963ee1e929ca1daedb0afa874f9
- SHA1 1a2221cae8da60d087f0adb01390923550551571
- SHA512 d1c3d757e211d2ff6925b0f025e96a33decf92ec38c67df55fd39f0215f810f5925e76b3735929695097c279978a0632bceda7bacf654f7e40ea947b4910de15
- SSDEEP 12288:cqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:cjHPOSOkx2LFscU6UQOJdT
- TLSH T103F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000d00000001047e-2.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000d00000001047e-2.dat CryptoLocker_set1 - Custom signatureUPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral2/memory/4700-0-0x0000000000810000-0x0000000000899000-memory.dmp UPX behavioral2/files/0x000d00000001047e-2.dat UPX behavioral2/memory/648-3-0x0000000000240000-0x00000000002C9000-memory.dmp UPX behavioral2/memory/4700-18-0x0000000000810000-0x0000000000899000-memory.dmp UPX behavioral2/memory/648-20-0x0000000000240000-0x00000000002C9000-memory.dmp UPX behavioral2/memory/648-24-0x0000000000240000-0x00000000002C9000-memory.dmp UPX behavioral2/memory/4700-29-0x0000000000810000-0x0000000000899000-memory.dmp UPX behavioral2/memory/648-30-0x0000000000240000-0x00000000002C9000-memory.dmp UPX behavioral2/memory/4700-47-0x0000000000810000-0x0000000000899000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 648 4daf4915 - 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 1 114.114.114.114 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 14 114.114.114.114 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 15 223.5.5.5 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_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\Local\Microsoft\Windows\INetCache\IE 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4daf4915 File created C:\Windows\SysWOW64\4daf4915 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4daf4915 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4daf4915 -
resource yara_rule behavioral2/memory/4700-0-0x0000000000810000-0x0000000000899000-memory.dmp upx behavioral2/files/0x000d00000001047e-2.dat upx behavioral2/memory/648-3-0x0000000000240000-0x00000000002C9000-memory.dmp upx behavioral2/memory/4700-18-0x0000000000810000-0x0000000000899000-memory.dmp upx behavioral2/memory/648-20-0x0000000000240000-0x00000000002C9000-memory.dmp upx behavioral2/memory/648-24-0x0000000000240000-0x00000000002C9000-memory.dmp upx behavioral2/memory/4700-29-0x0000000000810000-0x0000000000899000-memory.dmp upx behavioral2/memory/648-30-0x0000000000240000-0x00000000002C9000-memory.dmp upx behavioral2/memory/4700-47-0x0000000000810000-0x0000000000899000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\b1810 4daf4915 File opened for modification C:\Windows\507738 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_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 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4daf4915 - 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\Content\CachePrefix 4daf4915 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4daf4915 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4daf4915 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 4daf4915 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 4daf4915 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 4daf4915 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4daf4915 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4daf4915 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4daf4915 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 648 4daf4915 648 4daf4915 648 4daf4915 648 4daf4915 648 4daf4915 648 4daf4915 648 4daf4915 648 4daf4915 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4700 2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 648 4daf4915 Token: SeTcbPrivilege 648 4daf4915
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-05_c4a59963ee1e929ca1daedb0afa874f9_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:4700
-
C:\Windows\Syswow64\4daf4915C:\Windows\Syswow64\4daf49151⤵
- 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:648
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\4daf4915
- Size 768KB
- SHA256 29e5588b0b77b8bd7daf36cfe3a57bac90e351817b43ad6e54e58ac82ebf9141
- MD5 32d4e9a76433ff9c33598d2422e4751f
- SHA1 546ea1be539ec9032295ffe4db78becce5054e58
- SHA512 bebbdc5a0ebb8da06dda971cb917d42ba8ae70003d30b1b641b37210c1567af3c7b251fef84f354bfa2fd1eea152fa45f1f98c9195d18c46d3e39e9dd63bfe0c
- SSDEEP 12288:OqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:OjHPOSOkx2LFscU6UQOJdT
- TLSH T135F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH