Analysis
- max time kernel
148s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 00:44
Behavioral task
behavioral1
Sample
2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260809-a3tjmafn31
- SHA256 a6aad292bfb242e77c8ce5efa7446ca9462f1613b67618474678806bc59919a2
- MD5 5f380a8c87f18ff1d3b0f08443a01c76
- SHA1 15f8ea207ae55abf537af4f11c4e015cadc71266
- SHA512 b60c994cbfb5ac96ccb3a39dcf009d2ad9b12288dd67429d15853a6dbe90885a1a6b0e8943a8c426e62598e39446aff44177fd063d4c8ebbe94bfa3ce1d35881
- SSDEEP 24576:ljHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:lTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1A2658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000700000001b83c-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000700000001b83c-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/1088-0-0x0000000000570000-0x00000000005F9000-memory.dmp UPX behavioral2/files/0x000700000001b83c-2.dat UPX behavioral2/memory/5644-4-0x0000000000210000-0x0000000000299000-memory.dmp UPX behavioral2/memory/1088-10-0x0000000000570000-0x00000000005F9000-memory.dmp UPX behavioral2/memory/5644-12-0x0000000000210000-0x0000000000299000-memory.dmp UPX behavioral2/memory/1088-31-0x0000000000570000-0x00000000005F9000-memory.dmp UPX behavioral2/memory/5644-32-0x0000000000210000-0x0000000000299000-memory.dmp UPX behavioral2/memory/5644-34-0x0000000000210000-0x0000000000299000-memory.dmp UPX behavioral2/memory/1088-46-0x0000000000570000-0x00000000005F9000-memory.dmp UPX behavioral2/memory/1088-54-0x0000000000570000-0x00000000005F9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 5644 afc989df - 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 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 12 114.114.114.114 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 13 223.5.5.5 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_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\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 afc989df File created C:\Windows\SysWOW64\afc989df 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content afc989df File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 afc989df -
resource yara_rule behavioral2/memory/1088-0-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/files/0x000700000001b83c-2.dat upx behavioral2/memory/5644-4-0x0000000000210000-0x0000000000299000-memory.dmp upx behavioral2/memory/1088-10-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/memory/5644-12-0x0000000000210000-0x0000000000299000-memory.dmp upx behavioral2/memory/1088-31-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/memory/5644-32-0x0000000000210000-0x0000000000299000-memory.dmp upx behavioral2/memory/5644-34-0x0000000000210000-0x0000000000299000-memory.dmp upx behavioral2/memory/1088-46-0x0000000000570000-0x00000000005F9000-memory.dmp upx behavioral2/memory/1088-54-0x0000000000570000-0x00000000005F9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\60a098 afc989df File opened for modification C:\Windows\12a080 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_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 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language afc989df - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" afc989df Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix afc989df Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" afc989df Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" afc989df Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" afc989df Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing afc989df Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ afc989df Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" afc989df Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" afc989df - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 5644 afc989df 5644 afc989df 5644 afc989df 5644 afc989df 5644 afc989df 5644 afc989df 5644 afc989df 5644 afc989df 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 1088 2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 5644 afc989df Token: SeTcbPrivilege 5644 afc989df
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_5f380a8c87f18ff1d3b0f08443a01c76_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:1088
-
C:\Windows\Syswow64\afc989dfC:\Windows\Syswow64\afc989df1⤵
- 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:5644
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\afc989df
- Size 1.4MB
- SHA256 2dba67830c782af01cd3e644b14c5d0ab1ab7e7690d33e11ec2b1a1a8bec3a17
- MD5 7af3725047a9db990ad4f8efecc0f4f0
- SHA1 d8af9037232ee2ad4666cb629a880bcee45ee0b2
- SHA512 22750d3ca3244074fa8efc2e02209c28b82c87cda7e500478370573d6e7fb17bfadaedfd4796c0538b02e3c42d2ce8ab49cef92d8ba1572adffd2f2fc1fdd4a7
- SSDEEP 24576:7jHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:7TGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1F3658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH