Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
14/08/2026, 01:22
Behavioral task
behavioral1
Sample
2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
13 signatures
150 seconds
General
- Target 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260814-brhhnaap2w
- SHA256 e87fd3ccc8495c51f7eed74eb180bd8244f414a0ffa1c8974a9431f7596fb491
- MD5 ed031b7a02d6faddb3d3724ccd69450d
- SHA1 151ffa8b10f1ad9a0280b01b8f5242930b8df691
- SHA512 e94037f7fe111af50fc87bc7bdac78955c04dbc008aefd9fa9789c3c9c443b395b35263a1403c02ee1d55c99c8fbf6b81a109fa23d77782da0d6917f4f4744fd
- SSDEEP 12288:0qXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:0jHPOSOkx2LFscU6UQOJdT
- TLSH T15AF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000800000002461d-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000800000002461d-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral1/memory/4348-0-0x0000000000ED0000-0x0000000000F59000-memory.dmp UPX behavioral1/files/0x000800000002461d-2.dat UPX behavioral1/memory/3656-3-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral1/memory/4348-20-0x0000000000ED0000-0x0000000000F59000-memory.dmp UPX behavioral1/memory/3656-22-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral1/memory/3656-26-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral1/memory/4348-34-0x0000000000ED0000-0x0000000000F59000-memory.dmp UPX behavioral1/memory/3656-35-0x0000000000930000-0x00000000009B9000-memory.dmp UPX behavioral1/memory/4348-41-0x0000000000ED0000-0x0000000000F59000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 3656 90a3148 - 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 42 223.5.5.5 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 3 114.114.114.114 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 41 114.114.114.114 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_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\Local\Microsoft\Windows\INetCookies 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 90a3148 File created C:\Windows\SysWOW64\90a3148 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 90a3148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 90a3148 -
resource yara_rule behavioral1/memory/4348-0-0x0000000000ED0000-0x0000000000F59000-memory.dmp upx behavioral1/files/0x000800000002461d-2.dat upx behavioral1/memory/3656-3-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral1/memory/4348-20-0x0000000000ED0000-0x0000000000F59000-memory.dmp upx behavioral1/memory/3656-22-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral1/memory/3656-26-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral1/memory/4348-34-0x0000000000ED0000-0x0000000000F59000-memory.dmp upx behavioral1/memory/3656-35-0x0000000000930000-0x00000000009B9000-memory.dmp upx behavioral1/memory/4348-41-0x0000000000ED0000-0x0000000000F59000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3e9790 90a3148 File opened for modification C:\Windows\4a7078 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_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 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 90a3148 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 90a3148 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 90a3148 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 90a3148 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 90a3148 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 90a3148 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 90a3148 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 90a3148 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 90a3148 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 90a3148 - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 3656 90a3148 3656 90a3148 3656 90a3148 3656 90a3148 3656 90a3148 3656 90a3148 3656 90a3148 3656 90a3148 3656 90a3148 3656 90a3148 3656 90a3148 3656 90a3148 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4348 2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 3656 90a3148 Token: SeTcbPrivilege 3656 90a3148
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-14_ed031b7a02d6faddb3d3724ccd69450d_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:4348
-
C:\Windows\Syswow64\90a3148C:\Windows\Syswow64\90a31481⤵
- 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:3656
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\90a3148
- Size 768KB
- SHA256 76bf79d9b5ab989ac0342c4c87503e8fde18d9930e1d528fe53bcd39581d2c3b
- MD5 9c9afb3d2ee0a600201e524cb72d086f
- SHA1 534b6331dc6173ae7951d9270d24a0fa6d7ac482
- SHA512 5aaa7e0d0d7e60c41e906bc9b317055c4530723d6021d41ab7f503c142158cb15d1458e3fc667f37c779062144859c22188cb3c84133053b434eb35a1808fa76
- SSDEEP 12288:XqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:XjHPOSOkx2LFscU6UQOJdT
- TLSH T1E4F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH