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
18/04/2026, 02:54
Behavioral task
behavioral1
Sample
2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260418-dec4hsfv2v
- SHA256 e777d01248453c09855066fca114265632b91f8f066c8986f47b2f022cacd812
- MD5 656cac69c60dcca605d526f6c26412a1
- SHA1 f7cf21aba02b59454b4da8c73a23a521abbd3359
- SHA512 c7f7598161f57cfd69c6de9efd1044232aca72aa0c62544e31b6ef45915e70c36ad4b66646fe38234b4487cb178b1c5085dc0f2b5d843d991bf5c4c4899de456
- SSDEEP 24576:ZjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:ZTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T135658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x00090000000004e8-3.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x00090000000004e8-3.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral1/memory/3772-0-0x0000000000C20000-0x0000000000CA9000-memory.dmp UPX behavioral1/memory/2852-4-0x0000000000F10000-0x0000000000F99000-memory.dmp UPX behavioral1/files/0x00090000000004e8-3.dat UPX behavioral1/memory/3772-16-0x0000000000C20000-0x0000000000CA9000-memory.dmp UPX behavioral1/memory/2852-19-0x0000000000F10000-0x0000000000F99000-memory.dmp UPX behavioral1/memory/2852-27-0x0000000000F10000-0x0000000000F99000-memory.dmp UPX behavioral1/memory/3772-39-0x0000000000C20000-0x0000000000CA9000-memory.dmp UPX behavioral1/memory/2852-41-0x0000000000F10000-0x0000000000F99000-memory.dmp UPX behavioral1/memory/3772-43-0x0000000000C20000-0x0000000000CA9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 2852 74e8a3d - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 2 114.114.114.114 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 36 114.114.114.114 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 37 223.5.5.5 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 103 114.114.114.114 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 104 223.5.5.5 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_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\Local\Microsoft\Windows\INetCache\Content.IE5 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 74e8a3d File created C:\Windows\SysWOW64\74e8a3d 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 74e8a3d File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 74e8a3d -
resource yara_rule behavioral1/memory/3772-0-0x0000000000C20000-0x0000000000CA9000-memory.dmp upx behavioral1/memory/2852-4-0x0000000000F10000-0x0000000000F99000-memory.dmp upx behavioral1/files/0x00090000000004e8-3.dat upx behavioral1/memory/3772-16-0x0000000000C20000-0x0000000000CA9000-memory.dmp upx behavioral1/memory/2852-19-0x0000000000F10000-0x0000000000F99000-memory.dmp upx behavioral1/memory/2852-27-0x0000000000F10000-0x0000000000F99000-memory.dmp upx behavioral1/memory/3772-39-0x0000000000C20000-0x0000000000CA9000-memory.dmp upx behavioral1/memory/2852-41-0x0000000000F10000-0x0000000000F99000-memory.dmp upx behavioral1/memory/3772-43-0x0000000000C20000-0x0000000000CA9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\30d3c8 74e8a3d File opened for modification C:\Windows\4093f8 2026-04-18_656cac69c60dcca605d526f6c26412a1_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 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 74e8a3d - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 74e8a3d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 74e8a3d Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 74e8a3d Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 74e8a3d Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 74e8a3d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 74e8a3d Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 74e8a3d Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 74e8a3d Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 74e8a3d - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2852 74e8a3d 2852 74e8a3d 2852 74e8a3d 2852 74e8a3d 2852 74e8a3d 2852 74e8a3d 2852 74e8a3d 2852 74e8a3d 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 3772 2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 2852 74e8a3d Token: SeTcbPrivilege 2852 74e8a3d
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-18_656cac69c60dcca605d526f6c26412a1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-18_656cac69c60dcca605d526f6c26412a1_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:3772
-
C:\Windows\Syswow64\74e8a3dC:\Windows\Syswow64\74e8a3d1⤵
- 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:2852
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\74e8a3d
- Size 1.4MB
- SHA256 b6d083c7d6b3c05752d2b8db881a6f6c6add4595c8c326f6bf40bad57aaa68f6
- MD5 bd852ea397776a4e87309ba98f40a00f
- SHA1 643bb94f3fbeb033729a1fd93b0fd0df94e10704
- SHA512 4d4f309a8115993a617c0a2e538595979bd049b2bd36e14ef9d20abd1cc01acb22eaf5197c6914d1d0797ddc723df5c1e941e7f45b05b55519512e1f70a52a61
- SSDEEP 24576:+jHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:+TGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T116658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH