Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
19/05/2026, 12:34
Behavioral task
behavioral1
Sample
2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win11-20260513-en
windows11-21h2-x64
13 signatures
150 seconds
General
- Target 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260519-pr49bab18v
- SHA256 fa70d3a097a496221ab0766256018cadde714a29e1467d5167312e37cd790299
- MD5 bd4c4a1f771fcab4079bce3e87aece3a
- SHA1 7c3e530038721ed8b85cdfec4de186e2b66671f6
- SHA512 9b7ab6182636e4d0c0d609210b00d0ebc5ae41eca67a74121b790af2299bcdbb31a96fb8b265e377ebfc429c441562bf39d808a76336a3d67ec4b48a64062db0
- SSDEEP 24576:OjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:OTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1BC658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a0000000243fc-2.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a0000000243fc-2.dat CryptoLocker_set1 - Custom signatureUPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral1/memory/1012-0-0x00000000004D0000-0x0000000000559000-memory.dmp UPX behavioral1/files/0x000a0000000243fc-2.dat UPX behavioral1/memory/520-4-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/1012-15-0x00000000004D0000-0x0000000000559000-memory.dmp UPX behavioral1/memory/520-17-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/1012-31-0x00000000004D0000-0x0000000000559000-memory.dmp UPX behavioral1/memory/520-32-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/520-37-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/1012-51-0x00000000004D0000-0x0000000000559000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 520 d2dab04c - 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 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 40 114.114.114.114 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 42 223.5.5.5 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 17 IoCs
description ioc Process File created C:\Windows\SysWOW64\d2dab04c 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache d2dab04c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData d2dab04c -
resource yara_rule behavioral1/memory/1012-0-0x00000000004D0000-0x0000000000559000-memory.dmp upx behavioral1/files/0x000a0000000243fc-2.dat upx behavioral1/memory/520-4-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/1012-15-0x00000000004D0000-0x0000000000559000-memory.dmp upx behavioral1/memory/520-17-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/1012-31-0x00000000004D0000-0x0000000000559000-memory.dmp upx behavioral1/memory/520-32-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/520-37-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/1012-51-0x00000000004D0000-0x0000000000559000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\115368 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\8e710 d2dab04c - 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 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d2dab04c - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ d2dab04c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" d2dab04c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" d2dab04c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing d2dab04c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix d2dab04c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" d2dab04c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" d2dab04c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" d2dab04c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" d2dab04c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 520 d2dab04c 520 d2dab04c 520 d2dab04c 520 d2dab04c 520 d2dab04c 520 d2dab04c 520 d2dab04c 520 d2dab04c 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 1012 2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 520 d2dab04c Token: SeTcbPrivilege 520 d2dab04c
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-19_bd4c4a1f771fcab4079bce3e87aece3a_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:1012
-
C:\Windows\Syswow64\d2dab04cC:\Windows\Syswow64\d2dab04c1⤵
- 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:520
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\d2dab04c
- Size 1.4MB
- SHA256 01a192f08170d3735257b6f2cdb79aaec1f9cd3f78c0b55390f53bde01fa683f
- MD5 f53ca3532ff9f8bf3758dcbef472fbe8
- SHA1 e8ffb2093a76ab2c7d99a351ae76753a1110881e
- SHA512 1b1ee7cd19fd4e732d84ea644ae717b739142c13e8a8df32d404143018eab69ef54c5ac746e7a4f279d783d34b1207f3dc719106f5e78938144c7e15b3da876d
- SSDEEP 24576:tjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:tTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1EF658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH