Analysis
- max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/08/2026, 09:49
Behavioral task
behavioral1
Sample
2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260804-ltcejaxblh
- SHA256 52d0a1f21d37dd6c1431aa439ad8cd56949f040e7f840c518e4efc0a45a04cf2
- MD5 c6a1a5121fd91b1c33f5a71cfa86b0b0
- SHA1 479154e99673e20896b980a9707e16f936e65c68
- SHA512 b4184d81dd4a5ded602a6b35bb25dc5c1804e918438de5b855032f05676a8304ce4003d564b406388cad35888ffcec7ddf044ea60e380870b837ab20503612db
- SSDEEP 24576:ijHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:iTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1BD658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024366-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a000000024366-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral1/memory/3996-0-0x0000000000D40000-0x0000000000DC9000-memory.dmp UPX behavioral1/files/0x000a000000024366-2.dat UPX behavioral1/memory/4744-4-0x00000000009D0000-0x0000000000A59000-memory.dmp UPX behavioral1/memory/3996-10-0x0000000000D40000-0x0000000000DC9000-memory.dmp UPX behavioral1/memory/4744-13-0x00000000009D0000-0x0000000000A59000-memory.dmp UPX behavioral1/memory/3996-24-0x0000000000D40000-0x0000000000DC9000-memory.dmp UPX behavioral1/memory/4744-25-0x00000000009D0000-0x0000000000A59000-memory.dmp UPX behavioral1/memory/3996-37-0x0000000000D40000-0x0000000000DC9000-memory.dmp UPX behavioral1/memory/3996-41-0x0000000000D40000-0x0000000000DC9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4744 c9f38650 - 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 6 223.5.5.5 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 30 114.114.114.114 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 32 223.5.5.5 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 114.114.114.114 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_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\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c9f38650 File created C:\Windows\SysWOW64\c9f38650 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content c9f38650 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 c9f38650 -
resource yara_rule behavioral1/memory/3996-0-0x0000000000D40000-0x0000000000DC9000-memory.dmp upx behavioral1/files/0x000a000000024366-2.dat upx behavioral1/memory/4744-4-0x00000000009D0000-0x0000000000A59000-memory.dmp upx behavioral1/memory/3996-10-0x0000000000D40000-0x0000000000DC9000-memory.dmp upx behavioral1/memory/4744-13-0x00000000009D0000-0x0000000000A59000-memory.dmp upx behavioral1/memory/3996-24-0x0000000000D40000-0x0000000000DC9000-memory.dmp upx behavioral1/memory/4744-25-0x00000000009D0000-0x0000000000A59000-memory.dmp upx behavioral1/memory/3996-37-0x0000000000D40000-0x0000000000DC9000-memory.dmp upx behavioral1/memory/3996-41-0x0000000000D40000-0x0000000000DC9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\513810 c9f38650 File opened for modification C:\Windows\4469b8 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_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 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c9f38650 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing c9f38650 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" c9f38650 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" c9f38650 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" c9f38650 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" c9f38650 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix c9f38650 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" c9f38650 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" c9f38650 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ c9f38650 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4744 c9f38650 4744 c9f38650 4744 c9f38650 4744 c9f38650 4744 c9f38650 4744 c9f38650 4744 c9f38650 4744 c9f38650 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 3996 2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4744 c9f38650 Token: SeTcbPrivilege 4744 c9f38650
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-03_c6a1a5121fd91b1c33f5a71cfa86b0b0_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:3996
-
C:\Windows\Syswow64\c9f38650C:\Windows\Syswow64\c9f386501⤵
- 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:4744
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\c9f38650
- Size 1.4MB
- SHA256 d55806c6c099cfb2d05c51172c173864c4760f532d4801611e51d21fc19f60e5
- MD5 8cea4ae6fa41742a4b7f8e66ef7660e7
- SHA1 0c3ac0adca6a87dfcdc52106cc76e33fead260e1
- SHA512 8069c4366d0f3300b68dec135784e5085e28e13f7341fd0df776e25dbfcc694b96ccad4675c9d5f7d392d7cdb849e8a0b8b037bf00b62b1ed06f1fdbd26f1323
- SSDEEP 24576:WjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:WTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1DE658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH