Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
17/04/2026, 04:11
Behavioral task
behavioral1
Sample
2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260417-esae8ae13m
- SHA256 c6cf82a9c0a483faeaec248556ad3613fd5263ad77b6592fc26f21254d0881bf
- MD5 dda52b3775c7d5a9d314bc0621378d0a
- SHA1 81b9e0aca1fbe0cc1946e57e6726534d54cd36c5
- SHA512 addcb00415327caaa4105d716d714ab0426b8a9734e85ab7678f54227b389a1e735e3c84bde881840ccbfb290bfee0d233f89ac66e39d3cc12184c636ea8c06d
- SSDEEP 12288:MqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:MjHPOSOkx2LFscU6UQOJdT
- TLSH T104F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x001300000002429a-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x001300000002429a-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral1/memory/3148-0-0x0000000000FD0000-0x0000000001059000-memory.dmp UPX behavioral1/files/0x001300000002429a-2.dat UPX behavioral1/memory/1680-4-0x0000000000100000-0x0000000000189000-memory.dmp UPX behavioral1/memory/3148-10-0x0000000000FD0000-0x0000000001059000-memory.dmp UPX behavioral1/memory/1680-12-0x0000000000100000-0x0000000000189000-memory.dmp UPX behavioral1/memory/3148-29-0x0000000000FD0000-0x0000000001059000-memory.dmp UPX behavioral1/memory/1680-30-0x0000000000100000-0x0000000000189000-memory.dmp UPX behavioral1/memory/3148-52-0x0000000000FD0000-0x0000000001059000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 1680 ade88b53 - 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 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 6 223.5.5.5 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 31 114.114.114.114 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 32 223.5.5.5 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content ade88b53 File created C:\Windows\SysWOW64\ade88b53 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C ade88b53 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ade88b53 -
resource yara_rule behavioral1/memory/3148-0-0x0000000000FD0000-0x0000000001059000-memory.dmp upx behavioral1/files/0x001300000002429a-2.dat upx behavioral1/memory/1680-4-0x0000000000100000-0x0000000000189000-memory.dmp upx behavioral1/memory/3148-10-0x0000000000FD0000-0x0000000001059000-memory.dmp upx behavioral1/memory/1680-12-0x0000000000100000-0x0000000000189000-memory.dmp upx behavioral1/memory/3148-29-0x0000000000FD0000-0x0000000001059000-memory.dmp upx behavioral1/memory/1680-30-0x0000000000100000-0x0000000000189000-memory.dmp upx behavioral1/memory/3148-52-0x0000000000FD0000-0x0000000001059000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\1cc320 ade88b53 File opened for modification C:\Windows\35e518 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_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 ade88b53 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_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\History\CachePrefix = "Visited:" ade88b53 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" ade88b53 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" ade88b53 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" ade88b53 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ ade88b53 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" ade88b53 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" ade88b53 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing ade88b53 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix ade88b53 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1680 ade88b53 1680 ade88b53 1680 ade88b53 1680 ade88b53 1680 ade88b53 1680 ade88b53 1680 ade88b53 1680 ade88b53 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 3148 2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 1680 ade88b53 Token: SeTcbPrivilege 1680 ade88b53
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-17_dda52b3775c7d5a9d314bc0621378d0a_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:3148
-
C:\Windows\Syswow64\ade88b53C:\Windows\Syswow64\ade88b531⤵
- 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:1680
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\ade88b53
- Size 768KB
- SHA256 a03ff4f7fe581c6383e24eac154a19cef1e1b608a2ad16c635d9c07dd1328c84
- MD5 a56fec29835e1bbf1c39fba1043cca15
- SHA1 1ffb52fc03de6c3b60cb4f4bd953b985d8e2441a
- SHA512 67a4e711b804bcff04c8df4dc9063e03dea6342d49785921d5a661a4cc0fd9d33c90dc749371562964ee83cc0159f17887bfc0b95df4ca53908b9e6412e3e7dc
- SSDEEP 12288:CqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:CjHPOSOkx2LFscU6UQOJdT
- TLSH T1CBF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH