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
11/05/2026, 03:51
Behavioral task
behavioral1
Sample
2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260511-eeykwset3r
- SHA256 5be5bdf4503ed0ea7daab1138672232fa43b9ef47ad186800126771d263acc34
- MD5 b95e50097cd65ab5a9ce09b05edcafc9
- SHA1 222b520a8f975058e81568d60beb1a5f4d7b6b34
- SHA512 271cde854f8d08e31b7c5918cf51ddf43fd83ffa9d8754f49e087ac21ab63b6c25f5b9627db9818cdb6ff612a8de18a669d0fedd64e7431589708afc253b4867
- SSDEEP 24576:+jHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:+TGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T143658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000600000002a7ec-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000600000002a7ec-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 8 IoCs
resource yara_rule behavioral2/memory/3484-0-0x00000000007D0000-0x0000000000859000-memory.dmp UPX behavioral2/files/0x000600000002a7ec-2.dat UPX behavioral2/memory/4280-4-0x00000000005B0000-0x0000000000639000-memory.dmp UPX behavioral2/memory/3484-10-0x00000000007D0000-0x0000000000859000-memory.dmp UPX behavioral2/memory/4280-12-0x00000000005B0000-0x0000000000639000-memory.dmp UPX behavioral2/memory/3484-29-0x00000000007D0000-0x0000000000859000-memory.dmp UPX behavioral2/memory/4280-30-0x00000000005B0000-0x0000000000639000-memory.dmp UPX behavioral2/memory/3484-40-0x00000000007D0000-0x0000000000859000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4280 fc570c17 - 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 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 8 114.114.114.114 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 9 223.5.5.5 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_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 fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 fc570c17 File created C:\Windows\SysWOW64\fc570c17 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 fc570c17 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE fc570c17 -
resource yara_rule behavioral2/memory/3484-0-0x00000000007D0000-0x0000000000859000-memory.dmp upx behavioral2/files/0x000600000002a7ec-2.dat upx behavioral2/memory/4280-4-0x00000000005B0000-0x0000000000639000-memory.dmp upx behavioral2/memory/3484-10-0x00000000007D0000-0x0000000000859000-memory.dmp upx behavioral2/memory/4280-12-0x00000000005B0000-0x0000000000639000-memory.dmp upx behavioral2/memory/3484-29-0x00000000007D0000-0x0000000000859000-memory.dmp upx behavioral2/memory/4280-30-0x00000000005B0000-0x0000000000639000-memory.dmp upx behavioral2/memory/3484-40-0x00000000007D0000-0x0000000000859000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\494670 fc570c17 File opened for modification C:\Windows\3ba5b8 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_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 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fc570c17 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" fc570c17 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing fc570c17 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix fc570c17 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ fc570c17 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" fc570c17 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" fc570c17 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" fc570c17 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" fc570c17 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" fc570c17 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4280 fc570c17 4280 fc570c17 4280 fc570c17 4280 fc570c17 4280 fc570c17 4280 fc570c17 4280 fc570c17 4280 fc570c17 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 3484 2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4280 fc570c17 Token: SeTcbPrivilege 4280 fc570c17
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-11_b95e50097cd65ab5a9ce09b05edcafc9_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:3484
-
C:\Windows\Syswow64\fc570c17C:\Windows\Syswow64\fc570c171⤵
- 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:4280
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\fc570c17
- Size 1.4MB
- SHA256 f4c97fc5e312ff587bf9c478e532540eaf05113a1fd016b3cb90640c40de60cb
- MD5 759d5e5d2949eeaab8eda0004ef220c4
- SHA1 972dcaf40a57b8d6c20484c93f85df61660720bb
- SHA512 9541662e23b709c12c621de7958a01d84f02ed96b8cb27b7c77de8ba3516fce7a0d04d25feb4ff05df40fe8ab59a5a68120e34e0aaa2b78bfad2f1289d769090
- SSDEEP 24576:PjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:PTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1A2658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH