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
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 behavioral1/files/0x000800000001e423-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000800000001e423-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral1/memory/3080-0-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral1/files/0x000800000001e423-2.dat UPX behavioral1/memory/4904-4-0x0000000000270000-0x00000000002F9000-memory.dmp UPX behavioral1/memory/3080-13-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral1/memory/4904-15-0x0000000000270000-0x00000000002F9000-memory.dmp UPX behavioral1/memory/3080-35-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX behavioral1/memory/4904-36-0x0000000000270000-0x00000000002F9000-memory.dmp UPX behavioral1/memory/4904-38-0x0000000000270000-0x00000000002F9000-memory.dmp UPX behavioral1/memory/4904-40-0x0000000000270000-0x00000000002F9000-memory.dmp UPX behavioral1/memory/3080-49-0x0000000000F40000-0x0000000000FC9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4904 f9718648 - Unexpected DNS network traffic destination 8 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 76 223.5.5.5 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 118 114.114.114.114 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 119 223.5.5.5 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 3 114.114.114.114 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 11 223.5.5.5 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 44 114.114.114.114 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 45 223.5.5.5 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 75 114.114.114.114 3080 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\Local\Microsoft\Windows\INetCache\Content.IE5 f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f9718648 File created C:\Windows\SysWOW64\f9718648 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft f9718648 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f9718648 -
resource yara_rule behavioral1/memory/3080-0-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral1/files/0x000800000001e423-2.dat upx behavioral1/memory/4904-4-0x0000000000270000-0x00000000002F9000-memory.dmp upx behavioral1/memory/3080-13-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral1/memory/4904-15-0x0000000000270000-0x00000000002F9000-memory.dmp upx behavioral1/memory/3080-35-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx behavioral1/memory/4904-36-0x0000000000270000-0x00000000002F9000-memory.dmp upx behavioral1/memory/4904-38-0x0000000000270000-0x00000000002F9000-memory.dmp upx behavioral1/memory/4904-40-0x0000000000270000-0x00000000002F9000-memory.dmp upx behavioral1/memory/3080-49-0x0000000000F40000-0x0000000000FC9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\53f550 f9718648 File opened for modification C:\Windows\34bb10 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 f9718648 - 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:" f9718648 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" f9718648 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ f9718648 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" f9718648 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" f9718648 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" f9718648 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" f9718648 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing f9718648 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix f9718648 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4904 f9718648 4904 f9718648 4904 f9718648 4904 f9718648 4904 f9718648 4904 f9718648 4904 f9718648 4904 f9718648 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 3080 2026-05-10_8077ff1caf4aa13db4a40fdfe729f0f5_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4904 f9718648 Token: SeTcbPrivilege 4904 f9718648
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:3080
-
C:\Windows\Syswow64\f9718648C:\Windows\Syswow64\f97186481⤵
- 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:4904
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\f9718648
- Size 768KB
- SHA256 99c85788d24e513f01d7b2d3c47cb1965b01831af9aa440eabee23ed0422a348
- MD5 4e6ce1c44d27f71970cccc8e51b9bb5d
- SHA1 9a2cf45d8c79c182b2a13b27566a5f0151fcafc6
- SHA512 e13184e7221ee6b24b17633c893a58561736eededd1441946d1367db3ab6da5eb9d0016e217b14f8a07b3c801b306c93bf671a345a22a82e7f9ff63b863e69d1
- SSDEEP 12288:UqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:UjHPOSOkx2LFscU6UQOJdT
- TLSH T16FF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH