Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
11/08/2026, 22:20
Behavioral task
behavioral1
Sample
2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260811-19acfaha56
- SHA256 e81852d5274dec97c2f3a21f17e457d46b51a384148f32cf292c43495b5350c3
- MD5 b91507f657e2968735180944c725fe7b
- SHA1 b8cf20d7e7c986416467748a1166cae7cddddfbf
- SHA512 12903489f43edbc9f492e2658938c62cbd7c1e962c0c5fa6ac1b546505bbfa237837f3c4c711872f393ae578f402ab8ff0676d06723190736dbad9c0257d3531
- SSDEEP 12288:YqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:YjHPOSOkx2LFscU6UQOJdT
- TLSH T110F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000800000001b85f-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000800000001b85f-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/800-0-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral2/memory/2680-3-0x0000000001000000-0x0000000001089000-memory.dmp UPX behavioral2/files/0x000800000001b85f-2.dat UPX behavioral2/memory/800-18-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral2/memory/2680-20-0x0000000001000000-0x0000000001089000-memory.dmp UPX behavioral2/memory/800-23-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral2/memory/800-33-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral2/memory/2680-34-0x0000000001000000-0x0000000001089000-memory.dmp UPX behavioral2/memory/2680-36-0x0000000001000000-0x0000000001089000-memory.dmp UPX behavioral2/memory/800-43-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 2680 d444ab6 - 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 16 114.114.114.114 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 17 223.5.5.5 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 3 114.114.114.114 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 800 2026-08-11_b91507f657e2968735180944c725fe7b_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 d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 d444ab6 File created C:\Windows\SysWOW64\d444ab6 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d444ab6 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d444ab6 -
resource yara_rule behavioral2/memory/800-0-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral2/memory/2680-3-0x0000000001000000-0x0000000001089000-memory.dmp upx behavioral2/files/0x000800000001b85f-2.dat upx behavioral2/memory/800-18-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral2/memory/2680-20-0x0000000001000000-0x0000000001089000-memory.dmp upx behavioral2/memory/800-23-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral2/memory/800-33-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral2/memory/2680-34-0x0000000001000000-0x0000000001089000-memory.dmp upx behavioral2/memory/2680-36-0x0000000001000000-0x0000000001089000-memory.dmp upx behavioral2/memory/800-43-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2de1f0 d444ab6 File opened for modification C:\Windows\db240 2026-08-11_b91507f657e2968735180944c725fe7b_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 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d444ab6 - 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" d444ab6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" d444ab6 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing d444ab6 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ d444ab6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" d444ab6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix d444ab6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" d444ab6 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" d444ab6 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" d444ab6 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2680 d444ab6 2680 d444ab6 2680 d444ab6 2680 d444ab6 2680 d444ab6 2680 d444ab6 2680 d444ab6 2680 d444ab6 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 800 2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 2680 d444ab6 Token: SeTcbPrivilege 2680 d444ab6
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-11_b91507f657e2968735180944c725fe7b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-11_b91507f657e2968735180944c725fe7b_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:800
-
C:\Windows\Syswow64\d444ab6C:\Windows\Syswow64\d444ab61⤵
- 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:2680
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\d444ab6
- Size 768KB
- SHA256 79c862064480fb76b6f3fde2ee31183acd5788dbee99949003bb42413c32c9d3
- MD5 34becccf74503b703774785f4ff383a2
- SHA1 faae94cedcd95f7022b2ce38baed22c6eac9ecdf
- SHA512 60f593ae571a2974b530bcc5c5568e97f8274e64217d67d0ab89b47f33bf6013c4a4fcb7c619f52e18586206138e66f4f9e4a0d12d29a20f56256e67f07e6e49
- SSDEEP 12288:xqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:xjHPOSOkx2LFscU6UQOJdT
- TLSH T136F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH