Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
23/05/2026, 14:56
Behavioral task
behavioral1
Sample
2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
13 signatures
150 seconds
General
- Target 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260523-sa296sbs7p
- SHA256 3165b4fbec604fc788405eabccd6cd40f7317092dd14088de391166c2a60d6ff
- MD5 314eaea29c17e53df46703b440e7c10f
- SHA1 f75a850a2a4cb38f38c99bd83eac9d6da842b627
- SHA512 23f6e44d549d31b742cce3ce3ef7ac04e4f5113b830732479e611973724bb1002546ff304f448b68a7a2e67d898bb9b3af4362f4c8b062039feabf95c40a378c
- SSDEEP 24576:ejHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:eTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1EE658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x002600000002b345-2.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x002600000002b345-2.dat CryptoLocker_set1 - Custom signatureUPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral2/memory/1696-0-0x0000000000800000-0x0000000000889000-memory.dmp UPX behavioral2/files/0x002600000002b345-2.dat UPX behavioral2/memory/752-4-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/memory/1696-10-0x0000000000800000-0x0000000000889000-memory.dmp UPX behavioral2/memory/752-12-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/memory/1696-32-0x0000000000800000-0x0000000000889000-memory.dmp UPX behavioral2/memory/752-33-0x0000000000640000-0x00000000006C9000-memory.dmp UPX behavioral2/memory/1696-37-0x0000000000800000-0x0000000000889000-memory.dmp UPX behavioral2/memory/1696-45-0x0000000000800000-0x0000000000889000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 752 228584a0 - 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 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 9 114.114.114.114 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 10 223.5.5.5 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_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\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 228584a0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 228584a0 File created C:\Windows\SysWOW64\228584a0 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe -
resource yara_rule behavioral2/memory/1696-0-0x0000000000800000-0x0000000000889000-memory.dmp upx behavioral2/files/0x002600000002b345-2.dat upx behavioral2/memory/752-4-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/memory/1696-10-0x0000000000800000-0x0000000000889000-memory.dmp upx behavioral2/memory/752-12-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/memory/1696-32-0x0000000000800000-0x0000000000889000-memory.dmp upx behavioral2/memory/752-33-0x0000000000640000-0x00000000006C9000-memory.dmp upx behavioral2/memory/1696-37-0x0000000000800000-0x0000000000889000-memory.dmp upx behavioral2/memory/1696-45-0x0000000000800000-0x0000000000889000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\cdfe0 228584a0 File opened for modification C:\Windows\1d0940 2026-05-23_314eaea29c17e53df46703b440e7c10f_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 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 228584a0 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 228584a0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 228584a0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 228584a0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 228584a0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 228584a0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 228584a0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 228584a0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 228584a0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 228584a0 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 752 228584a0 752 228584a0 752 228584a0 752 228584a0 752 228584a0 752 228584a0 752 228584a0 752 228584a0 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 1696 2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 752 228584a0 Token: SeTcbPrivilege 752 228584a0
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-23_314eaea29c17e53df46703b440e7c10f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-23_314eaea29c17e53df46703b440e7c10f_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:1696
-
C:\Windows\Syswow64\228584a0C:\Windows\Syswow64\228584a01⤵
- 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:752
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\228584a0
- Size 1.4MB
- SHA256 aafa64ad12649865696f755b82ee12f53140d9fb651cbb5ac09384f34d7c799c
- MD5 5682735f8f2c1cfa796650e285b52912
- SHA1 80597a591cb077f34d658e09ac8bef761c388f7a
- SHA512 26ade9c6e2e2bc6276cf9a154dc4e0f11f7a10d9eeca1142e08f42ead1ad55923bbd25dc3c7e7f5f0e5657944cc3973a4bbbf8a19ea6d880efbd82d9e5fc68b4
- SSDEEP 24576:EjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:ETGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1A4658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH