Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
10/05/2026, 00:42
Behavioral task
behavioral1
Sample
2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 768KB
- Sample260510-a2pt2sat2m
- SHA256 e8c97e835c07b8a831dd84c6f9ef8d3ac4639d1162435bbfc982cca11df4b663
- MD5 8077ff1caf4aa13db4a40fdfe729f0f5
- SHA1 e95d8a05427ded1dabd25b08b65079155c8c9a8d
- SHA512 a41e0ce3a6761d76b44966e330bdeb1ab8828f49c220125b80fcdbde155fd42f60165717013811b924ae6bac6111f373d0123c6289f7e8395f93bcf3eeba6647
- SSDEEP 12288:WqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:WjHPOSOkx2LFscU6UQOJdT
- TLSH T18BF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000b00000002ab4c-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000b00000002ab4c-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral2/memory/4648-0-0x0000000000EB0000-0x0000000000F39000-memory.dmp UPX behavioral2/files/0x000b00000002ab4c-2.dat UPX behavioral2/memory/4304-4-0x0000000000430000-0x00000000004B9000-memory.dmp UPX behavioral2/memory/4648-18-0x0000000000EB0000-0x0000000000F39000-memory.dmp UPX behavioral2/memory/4304-21-0x0000000000430000-0x00000000004B9000-memory.dmp UPX behavioral2/memory/4304-29-0x0000000000430000-0x00000000004B9000-memory.dmp UPX behavioral2/memory/4648-41-0x0000000000EB0000-0x0000000000F39000-memory.dmp UPX behavioral2/memory/4304-43-0x0000000000430000-0x00000000004B9000-memory.dmp UPX behavioral2/memory/4648-49-0x0000000000EB0000-0x0000000000F39000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4304 acea0460 - 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 21 223.5.5.5 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 1 114.114.114.114 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 20 114.114.114.114 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_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\LocalLow\Microsoft\CryptnetUrlCache\MetaData acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 acea0460 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 acea0460 File created C:\Windows\SysWOW64\acea0460 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache acea0460 -
resource yara_rule behavioral2/memory/4648-0-0x0000000000EB0000-0x0000000000F39000-memory.dmp upx behavioral2/files/0x000b00000002ab4c-2.dat upx behavioral2/memory/4304-4-0x0000000000430000-0x00000000004B9000-memory.dmp upx behavioral2/memory/4648-18-0x0000000000EB0000-0x0000000000F39000-memory.dmp upx behavioral2/memory/4304-21-0x0000000000430000-0x00000000004B9000-memory.dmp upx behavioral2/memory/4304-29-0x0000000000430000-0x00000000004B9000-memory.dmp upx behavioral2/memory/4648-41-0x0000000000EB0000-0x0000000000F39000-memory.dmp upx behavioral2/memory/4304-43-0x0000000000430000-0x00000000004B9000-memory.dmp upx behavioral2/memory/4648-49-0x0000000000EB0000-0x0000000000F39000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\49afa0 acea0460 File opened for modification C:\Windows\4f9350 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_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 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language acea0460 - 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\Cookies\CachePrefix = "Cookie:" acea0460 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" acea0460 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ acea0460 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" acea0460 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix acea0460 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" acea0460 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" acea0460 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" acea0460 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing acea0460 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4304 acea0460 4304 acea0460 4304 acea0460 4304 acea0460 4304 acea0460 4304 acea0460 4304 acea0460 4304 acea0460 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4304 acea0460 Token: SeTcbPrivilege 4304 acea0460
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_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:4648
-
C:\Windows\Syswow64\acea0460C:\Windows\Syswow64\acea04601⤵
- 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:4304
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\acea0460
- Size 768KB
- SHA256 9b6e5c4304659e6032a86c95feee5b6973611c151a6b0bd90c62496eb77d4e05
- MD5 c8d9196b2d50bbaf7623e5f610d74f89
- SHA1 ddc42c12f5c7fa859880237ce555d93dcc60955b
- SHA512 a737e5c3ae7f760dfaa528495caff82550e7d4c984f94f7f04768b326ac541dbd0b9ddf076b490702278a04399b4de895122c0f6c3c3dda2a4e92cf744e4a687
- SSDEEP 12288:MqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:MjHPOSOkx2LFscU6UQOJdT
- TLSH T18DF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH