Analysis
- max time kernel
149s - max time network
137s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
24/04/2026, 15:47
Behavioral task
behavioral1
Sample
2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260424-s8fttsdx31
- SHA256 f4c729e6a9294db5d8f33acc547038edc676718954270c4ea802c19f0c2b75b3
- MD5 9415fb4eee120c99ede2e6741c18daff
- SHA1 fdf66c4986a1253a61c42ab49b2a555abbd28790
- SHA512 b2ca14f0036dc732bb54f11a4cc539f938c7b46225e848792c46348e81ed1826f78e04e4f97789d9a40fc9182bd54b11f25bfc0de61b68c847b41bfda59a0c87
- SSDEEP 12288:WqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:WjHPOSOkx2LFscU6UQOJdT
- TLSH T166F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x001f00000002b172-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x001f00000002b172-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 7 IoCs
resource yara_rule behavioral2/memory/3352-0-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral2/files/0x001f00000002b172-2.dat UPX behavioral2/memory/2108-3-0x0000000000190000-0x0000000000219000-memory.dmp UPX behavioral2/memory/3352-18-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral2/memory/2108-20-0x0000000000190000-0x0000000000219000-memory.dmp UPX behavioral2/memory/3352-32-0x0000000000650000-0x00000000006D9000-memory.dmp UPX behavioral2/memory/2108-33-0x0000000000190000-0x0000000000219000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 2108 95b600a5 - 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 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 10 114.114.114.114 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 11 223.5.5.5 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\95b600a5 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 95b600a5 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 95b600a5 -
resource yara_rule behavioral2/memory/3352-0-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral2/files/0x001f00000002b172-2.dat upx behavioral2/memory/2108-3-0x0000000000190000-0x0000000000219000-memory.dmp upx behavioral2/memory/3352-18-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral2/memory/2108-20-0x0000000000190000-0x0000000000219000-memory.dmp upx behavioral2/memory/3352-32-0x0000000000650000-0x00000000006D9000-memory.dmp upx behavioral2/memory/2108-33-0x0000000000190000-0x0000000000219000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2416f8 95b600a5 File opened for modification C:\Windows\396330 2026-04-24_9415fb4eee120c99ede2e6741c18daff_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 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 95b600a5 - 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:" 95b600a5 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 95b600a5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 95b600a5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 95b600a5 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 95b600a5 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 95b600a5 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 95b600a5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 95b600a5 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 95b600a5 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2108 95b600a5 2108 95b600a5 2108 95b600a5 2108 95b600a5 2108 95b600a5 2108 95b600a5 2108 95b600a5 2108 95b600a5 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 3352 2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 2108 95b600a5 Token: SeTcbPrivilege 2108 95b600a5
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-24_9415fb4eee120c99ede2e6741c18daff_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-24_9415fb4eee120c99ede2e6741c18daff_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:3352
-
C:\Windows\Syswow64\95b600a5C:\Windows\Syswow64\95b600a51⤵
- 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:2108
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\95b600a5
- Size 768KB
- SHA256 1f8545e4f36a5acddead3e87c6dbf35991b9ab33fd70bc2ed88d963c845bf3a1
- MD5 d9c9ca4a51de81297d50484064646eb2
- SHA1 ef2f95c7272c7d509317a3a0dec8a7efaa03e094
- SHA512 7e570b1e1949f6e177bc1119604a45c92320b08249f1b6e47f61dc96067a2aca3bf60868cb37988a5681447abf680b5ded0334fb1f00133be2f2695e02397da5
- SSDEEP 12288:tqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:tjHPOSOkx2LFscU6UQOJdT
- TLSH T1D3F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH