Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
03/05/2026, 23:07
Behavioral task
behavioral1
Sample
2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260503-24dcksdv2m
- SHA256 0523f2fbcce1aa15650f5ee5bee0c1ed3e15b457203356e914f6b49cde6ed0b8
- MD5 7a83f04a8e9710306b1041de4762f7f1
- SHA1 d9e18be495d5508c5d3936e764e156b9696cbfa8
- SHA512 91a8ff4168f5bb1b72efb8255bd2fb58c464a0ae22c35a9608ef1c67b24bdb7362a24e1477fcd6060c44878475314fe3e9d1e97c7765f7bfcf8b197f2c046b9a
- SSDEEP 24576:HjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:HTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T18C658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000700000001e6c2-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000700000001e6c2-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral1/memory/3800-0-0x0000000000820000-0x00000000008A9000-memory.dmp UPX behavioral1/files/0x000700000001e6c2-2.dat UPX behavioral1/memory/708-4-0x0000000000DD0000-0x0000000000E59000-memory.dmp UPX behavioral1/memory/3800-16-0x0000000000820000-0x00000000008A9000-memory.dmp UPX behavioral1/memory/708-18-0x0000000000DD0000-0x0000000000E59000-memory.dmp UPX behavioral1/memory/3800-27-0x0000000000820000-0x00000000008A9000-memory.dmp UPX behavioral1/memory/708-28-0x0000000000DD0000-0x0000000000E59000-memory.dmp UPX behavioral1/memory/708-30-0x0000000000DD0000-0x0000000000E59000-memory.dmp UPX behavioral1/memory/3800-37-0x0000000000820000-0x00000000008A9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 708 656a4926 - 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 37 114.114.114.114 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 38 223.5.5.5 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 3 114.114.114.114 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_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\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 656a4926 File created C:\Windows\SysWOW64\656a4926 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 656a4926 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 656a4926 -
resource yara_rule behavioral1/memory/3800-0-0x0000000000820000-0x00000000008A9000-memory.dmp upx behavioral1/files/0x000700000001e6c2-2.dat upx behavioral1/memory/708-4-0x0000000000DD0000-0x0000000000E59000-memory.dmp upx behavioral1/memory/3800-16-0x0000000000820000-0x00000000008A9000-memory.dmp upx behavioral1/memory/708-18-0x0000000000DD0000-0x0000000000E59000-memory.dmp upx behavioral1/memory/3800-27-0x0000000000820000-0x00000000008A9000-memory.dmp upx behavioral1/memory/708-28-0x0000000000DD0000-0x0000000000E59000-memory.dmp upx behavioral1/memory/708-30-0x0000000000DD0000-0x0000000000E59000-memory.dmp upx behavioral1/memory/3800-37-0x0000000000820000-0x00000000008A9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\c1f08 656a4926 File opened for modification C:\Windows\410eb0 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_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 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 656a4926 - 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" 656a4926 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 656a4926 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 656a4926 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 656a4926 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 656a4926 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 656a4926 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 656a4926 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 656a4926 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 656a4926 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 708 656a4926 708 656a4926 708 656a4926 708 656a4926 708 656a4926 708 656a4926 708 656a4926 708 656a4926 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 3800 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 708 656a4926 Token: SeTcbPrivilege 708 656a4926
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-03_7a83f04a8e9710306b1041de4762f7f1_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:3800
-
C:\Windows\Syswow64\656a4926C:\Windows\Syswow64\656a49261⤵
- 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:708
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\656a4926
- Size 1.4MB
- SHA256 f7aab3c3e56245ea8c41cb6dc2392c8c45bbc154c5102155c368768a78c915a3
- MD5 549f2c20ed4f3035e717b4e49557cf23
- SHA1 915c082bbbe061da580ef629bd770edac47fbacd
- SHA512 5415c2c41d938ac75358b753d7fac49602256cbef4416ea1c392c311f5dc27ccc7beaff69c5fd47a01070c847e2dabe38d82831a40e957f1b6daf216e4c31829
- SSDEEP 24576:gjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:gTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T153658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH