Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
19/04/2026, 06:39
Behavioral task
behavioral1
Sample
2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260419-hettgsay2w
- SHA256 9401704e25844764593fe76dd7b1156fae2245068af847a6c845345b5a8c2401
- MD5 63515299fc02607472ae94a686e94b69
- SHA1 b7e7e81cf0bebfdb7ec83d2da9f456c53ace2b1f
- SHA512 4e4e8523f899e6aa2cd253d4ddbeb33c6a7bf868f16edb0f9e0c26fb73dbef7bda7ee5b26bfa2d40ab510a00217bf08e6012b1992317b229d3f5f9a16e12228e
- SSDEEP 12288:dqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:djHPOSOkx2LFscU6UQOJdT
- TLSH T1E5F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x009800000001b598-3.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x009800000001b598-3.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral1/memory/3892-0-0x0000000000F00000-0x0000000000F89000-memory.dmp UPX behavioral1/files/0x009800000001b598-3.dat UPX behavioral1/memory/4376-4-0x0000000000CA0000-0x0000000000D29000-memory.dmp UPX behavioral1/memory/3892-10-0x0000000000F00000-0x0000000000F89000-memory.dmp UPX behavioral1/memory/4376-12-0x0000000000CA0000-0x0000000000D29000-memory.dmp UPX behavioral1/memory/3892-27-0x0000000000F00000-0x0000000000F89000-memory.dmp UPX behavioral1/memory/4376-28-0x0000000000CA0000-0x0000000000D29000-memory.dmp UPX behavioral1/memory/3892-48-0x0000000000F00000-0x0000000000F89000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4376 3fbfa75c - 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 28 223.5.5.5 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 3 114.114.114.114 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 26 114.114.114.114 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3fbfa75c File created C:\Windows\SysWOW64\3fbfa75c 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 3fbfa75c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3fbfa75c -
resource yara_rule behavioral1/memory/3892-0-0x0000000000F00000-0x0000000000F89000-memory.dmp upx behavioral1/files/0x009800000001b598-3.dat upx behavioral1/memory/4376-4-0x0000000000CA0000-0x0000000000D29000-memory.dmp upx behavioral1/memory/3892-10-0x0000000000F00000-0x0000000000F89000-memory.dmp upx behavioral1/memory/4376-12-0x0000000000CA0000-0x0000000000D29000-memory.dmp upx behavioral1/memory/3892-27-0x0000000000F00000-0x0000000000F89000-memory.dmp upx behavioral1/memory/4376-28-0x0000000000CA0000-0x0000000000D29000-memory.dmp upx behavioral1/memory/3892-48-0x0000000000F00000-0x0000000000F89000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4aeb30 3fbfa75c File opened for modification C:\Windows\42a1e8 2026-04-19_63515299fc02607472ae94a686e94b69_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 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3fbfa75c - 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 3fbfa75c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3fbfa75c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3fbfa75c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 3fbfa75c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3fbfa75c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3fbfa75c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3fbfa75c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3fbfa75c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3fbfa75c - Modifies system certificate store 2 TTPs 4 IoCs
description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA 3fbfa75c Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA\Blob = 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 3fbfa75c Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F24C630CDA418EF2069FFAD4FDD5F463A1B69AA 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4376 3fbfa75c 4376 3fbfa75c 4376 3fbfa75c 4376 3fbfa75c 4376 3fbfa75c 4376 3fbfa75c 4376 3fbfa75c 4376 3fbfa75c 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 3892 2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4376 3fbfa75c Token: SeTcbPrivilege 4376 3fbfa75c
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-19_63515299fc02607472ae94a686e94b69_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-19_63515299fc02607472ae94a686e94b69_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
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3892
-
C:\Windows\Syswow64\3fbfa75cC:\Windows\Syswow64\3fbfa75c1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4376
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3fbfa75c
- Size 768KB
- SHA256 99086c695fcb7c2609e68f1634725e625b52f876ee4688b73ff1e7980e7afdce
- MD5 cf9000e1356341815d41db8c30dd7d98
- SHA1 8ddab76c8548079b5c470159c5d3b95a6a27945b
- SHA512 761a6c7ee0f8087ac1f4f4748b0605ee0b532f98d3a7359338530405654d3df909863a9852df77e792574566c2a07a3c732953bf2c42342dbba7c504471dc0cc
- SSDEEP 12288:oqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:ojHPOSOkx2LFscU6UQOJdT
- TLSH T139F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH