Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
05/05/2026, 00:27
Behavioral task
behavioral1
Sample
2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260505-ar3cdses7t
- SHA256 d3ebdee0b7313191f3079e8981430c8058b3b93cfcfdadfb6378ee8836bbe809
- MD5 37014076a8fe5f871f2443f926cfa7af
- SHA1 d21d05e901fb22beddde0164a63850c821774f13
- SHA512 53d96db1c1526773cf1c5136775996f13f40a1f3226764532143e28d1bbce907c5daf74094ecf1879e7ccb3c710edcec56c4e37f0cdb5d5a418661c4d798c732
- SSDEEP 24576:IjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:ITGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T11A658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000600000002a7e0-3.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000600000002a7e0-3.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 7 IoCs
resource yara_rule behavioral2/memory/4060-0-0x0000000000750000-0x00000000007D9000-memory.dmp UPX behavioral2/files/0x000600000002a7e0-3.dat UPX behavioral2/memory/5044-4-0x0000000000100000-0x0000000000189000-memory.dmp UPX behavioral2/memory/4060-12-0x0000000000750000-0x00000000007D9000-memory.dmp UPX behavioral2/memory/5044-14-0x0000000000100000-0x0000000000189000-memory.dmp UPX behavioral2/memory/4060-38-0x0000000000750000-0x00000000007D9000-memory.dmp UPX behavioral2/memory/5044-40-0x0000000000100000-0x0000000000189000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 5044 e2667838 - 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 10 223.5.5.5 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 1 114.114.114.114 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 9 114.114.114.114 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 19 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache e2667838 File created C:\Windows\SysWOW64\e2667838 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 e2667838 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft e2667838 -
resource yara_rule behavioral2/memory/4060-0-0x0000000000750000-0x00000000007D9000-memory.dmp upx behavioral2/files/0x000600000002a7e0-3.dat upx behavioral2/memory/5044-4-0x0000000000100000-0x0000000000189000-memory.dmp upx behavioral2/memory/4060-12-0x0000000000750000-0x00000000007D9000-memory.dmp upx behavioral2/memory/5044-14-0x0000000000100000-0x0000000000189000-memory.dmp upx behavioral2/memory/4060-38-0x0000000000750000-0x00000000007D9000-memory.dmp upx behavioral2/memory/5044-40-0x0000000000100000-0x0000000000189000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\565ae8 e2667838 File opened for modification C:\Windows\458238 2026-05-05_37014076a8fe5f871f2443f926cfa7af_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 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e2667838 - 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\Content\CachePrefix e2667838 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" e2667838 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" e2667838 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" e2667838 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" e2667838 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" e2667838 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing e2667838 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ e2667838 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" e2667838 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5044 e2667838 5044 e2667838 5044 e2667838 5044 e2667838 5044 e2667838 5044 e2667838 5044 e2667838 5044 e2667838 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4060 2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 5044 e2667838 Token: SeTcbPrivilege 5044 e2667838
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-05_37014076a8fe5f871f2443f926cfa7af_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-05_37014076a8fe5f871f2443f926cfa7af_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:4060
-
C:\Windows\Syswow64\e2667838C:\Windows\Syswow64\e26678381⤵
- 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:5044
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\e2667838
- Size 1.4MB
- SHA256 aa83bee0cd86ea913ac9d5e751e4b23aaae72e74b65b4559b0cd20f525d1042f
- MD5 7ee888b67562f39594ca110c6f39da87
- SHA1 63ffb519564921a1e61f9de66854ff1621af8de4
- SHA512 6f819e3ca4e05ff18d4f20bb4b03cc863cec9a717ff06d8492d90a8d026b3daca649412be63d43d6903cda9aacc9fad18159ca534059baf419e28165917fc174
- SSDEEP 24576:djHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:dTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T135658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH