Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
16/04/2026, 15:04
Behavioral task
behavioral1
Sample
2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260416-sftvzse16w
- SHA256 adcd43859d7ee6bc4252e8c35e6c987d229398f4b930f49a4575de1ec12c6af5
- MD5 306ffa902a932254cdaf62ee3d418d3b
- SHA1 a122b9ca01d185b92c6cd7a038859565808e7d9a
- SHA512 ff11a29c77b6987602b4c52009f31ab18ccdc8022c6096e4bb864b296c776dc6db04fb9c941fd10e66e52581acb6ff38a2f6dc81d63f6f37108934c411eaf8de
- SSDEEP 24576:6jHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:6TGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T10F658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024195-2.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024195-2.dat CryptoLocker_set1 - Custom signatureUPX dump on OEP (original entry point) 11 IoCs
resource yara_rule behavioral1/memory/2432-0-0x0000000000D80000-0x0000000000E09000-memory.dmp UPX behavioral1/files/0x000a000000024195-2.dat UPX behavioral1/memory/4252-4-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral1/memory/2432-10-0x0000000000D80000-0x0000000000E09000-memory.dmp UPX behavioral1/memory/4252-12-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral1/memory/2432-27-0x0000000000D80000-0x0000000000E09000-memory.dmp UPX behavioral1/memory/4252-28-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral1/memory/4252-32-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral1/memory/4252-33-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral1/memory/2432-42-0x0000000000D80000-0x0000000000E09000-memory.dmp UPX behavioral1/memory/2432-44-0x0000000000D80000-0x0000000000E09000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4252 5b7fb37a - 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 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 6 223.5.5.5 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 24 114.114.114.114 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 25 223.5.5.5 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_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 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 5b7fb37a File created C:\Windows\SysWOW64\5b7fb37a 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 5b7fb37a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 5b7fb37a -
resource yara_rule behavioral1/memory/2432-0-0x0000000000D80000-0x0000000000E09000-memory.dmp upx behavioral1/files/0x000a000000024195-2.dat upx behavioral1/memory/4252-4-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral1/memory/2432-10-0x0000000000D80000-0x0000000000E09000-memory.dmp upx behavioral1/memory/4252-12-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral1/memory/2432-27-0x0000000000D80000-0x0000000000E09000-memory.dmp upx behavioral1/memory/4252-28-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral1/memory/4252-32-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral1/memory/4252-33-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral1/memory/2432-42-0x0000000000D80000-0x0000000000E09000-memory.dmp upx behavioral1/memory/2432-44-0x0000000000D80000-0x0000000000E09000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\48cbb8 5b7fb37a File opened for modification C:\Windows\29a300 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_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 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5b7fb37a - 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 5b7fb37a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 5b7fb37a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 5b7fb37a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 5b7fb37a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 5b7fb37a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 5b7fb37a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 5b7fb37a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 5b7fb37a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 5b7fb37a - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4252 5b7fb37a 4252 5b7fb37a 4252 5b7fb37a 4252 5b7fb37a 4252 5b7fb37a 4252 5b7fb37a 4252 5b7fb37a 4252 5b7fb37a 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 2432 2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4252 5b7fb37a Token: SeTcbPrivilege 4252 5b7fb37a
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-16_306ffa902a932254cdaf62ee3d418d3b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-16_306ffa902a932254cdaf62ee3d418d3b_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:2432
-
C:\Windows\Syswow64\5b7fb37aC:\Windows\Syswow64\5b7fb37a1⤵
- 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:4252
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\5b7fb37a
- Size 1.4MB
- SHA256 3d0b61354c92e6cbd05e2dd949ba3c45af8ca907f4e181aa0e28cfacb74124b7
- MD5 a0ae7b2500540eedf224179c167bf526
- SHA1 c79b11cd34c6cc6dd6f4c702e7f340fba3c1d9d4
- SHA512 1b05c041b3738becb92edce89c4d053a1b3cf81e255ae54c83fde19c316603585eca0c8af1eff9d67b9b2c8f16252dfcb37fb423e677fcf3560d3ee4d504b470
- SSDEEP 24576:cjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:cTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T13E658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH