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
20/08/2026, 12:43
Behavioral task
behavioral1
Sample
2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260820-pxwt5azzdv
- SHA256 f6bb8189e3d74a5b8d3b6abb5c33463aa0a356aa8b9c326066dc138ce334e668
- MD5 583b0289882787c2418d40868e82faf7
- SHA1 c36064a2499c7debcddcce74fd20244484b9cf78
- SHA512 1242426313e1bb561d7e25b9158412fe873e0ecd2f9859c64b4067bc7501bf639b174b6b0c179fae27d59a4346b7f96e44ed73df53caf804aaaf24de474f81bc
- SSDEEP 12288:uqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:ujHPOSOkx2LFscU6UQOJdT
- TLSH T138F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024384-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024384-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral1/memory/4032-0-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/files/0x000a000000024384-2.dat UPX behavioral1/memory/4296-4-0x0000000000350000-0x00000000003D9000-memory.dmp UPX behavioral1/memory/4032-18-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/4296-20-0x0000000000350000-0x00000000003D9000-memory.dmp UPX behavioral1/memory/4032-32-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/4296-33-0x0000000000350000-0x00000000003D9000-memory.dmp UPX behavioral1/memory/4032-47-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4296 10aef8dc - 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 3 114.114.114.114 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 26 114.114.114.114 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 27 223.5.5.5 4032 2026-08-20_583b0289882787c2418d40868e82faf7_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 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 10aef8dc File created C:\Windows\SysWOW64\10aef8dc 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 10aef8dc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 10aef8dc -
resource yara_rule behavioral1/memory/4032-0-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/files/0x000a000000024384-2.dat upx behavioral1/memory/4296-4-0x0000000000350000-0x00000000003D9000-memory.dmp upx behavioral1/memory/4032-18-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/4296-20-0x0000000000350000-0x00000000003D9000-memory.dmp upx behavioral1/memory/4032-32-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/4296-33-0x0000000000350000-0x00000000003D9000-memory.dmp upx behavioral1/memory/4032-47-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\498c90 10aef8dc File opened for modification C:\Windows\450780 2026-08-20_583b0289882787c2418d40868e82faf7_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 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 10aef8dc - 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 10aef8dc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 10aef8dc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 10aef8dc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 10aef8dc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 10aef8dc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 10aef8dc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 10aef8dc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 10aef8dc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 10aef8dc - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4296 10aef8dc 4296 10aef8dc 4296 10aef8dc 4296 10aef8dc 4296 10aef8dc 4296 10aef8dc 4296 10aef8dc 4296 10aef8dc 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4032 2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4296 10aef8dc Token: SeTcbPrivilege 4296 10aef8dc
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_583b0289882787c2418d40868e82faf7_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_583b0289882787c2418d40868e82faf7_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:4032
-
C:\Windows\Syswow64\10aef8dcC:\Windows\Syswow64\10aef8dc1⤵
- 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:4296
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\10aef8dc
- Size 768KB
- SHA256 5d220999e5856b2e19ce81012317357e7de86d64e72f6c3044136479fe70dff7
- MD5 c20c9295831948e6191bb70bc39e3e6a
- SHA1 fa16b2947b4907be258d486e7e9b4b10c1e6c723
- SHA512 6dd7438792e77ec688584b9c566ebaa15c5b9de1d2090c50e37527bc90f387d7f7e72103b40938980c71dc030c43efeb16efe49fd80ef9e3ef52e7d141d12f20
- SSDEEP 12288:eqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:ejHPOSOkx2LFscU6UQOJdT
- TLSH T17CF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH