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
20/04/2026, 11:10
Behavioral task
behavioral1
Sample
2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win11-20260130-en
windows11-21h2-x64
13 signatures
150 seconds
General
- Target 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260420-m9pkgagv5k
- SHA256 7b6b63339dd9744cf5e3c0c024e3133863ab08ee87438d3f579bf56622079905
- MD5 7c54ded681c799c95a19d35210ec7f3f
- SHA1 ee2396ded299b8b8612aa3328a2159ad0e14b366
- SHA512 c5cceede2d18fa09ba26dc34c854086c78c8890a6ee0ae4dc96138b003dcb608bbd8af00390ad52c125bb9f72acbd3a5af26d13b04afed9ff103eb7b5c6b463b
- SSDEEP 24576:IjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:ITGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1BB658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000c000000023759-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000c000000023759-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral1/memory/4428-0-0x0000000000A70000-0x0000000000AF9000-memory.dmp UPX behavioral1/files/0x000c000000023759-2.dat UPX behavioral1/memory/4544-3-0x0000000000F10000-0x0000000000F99000-memory.dmp UPX behavioral1/memory/4428-10-0x0000000000A70000-0x0000000000AF9000-memory.dmp UPX behavioral1/memory/4544-12-0x0000000000F10000-0x0000000000F99000-memory.dmp UPX behavioral1/memory/4544-26-0x0000000000F10000-0x0000000000F99000-memory.dmp UPX behavioral1/memory/4428-24-0x0000000000A70000-0x0000000000AF9000-memory.dmp UPX behavioral1/memory/4544-36-0x0000000000F10000-0x0000000000F99000-memory.dmp UPX behavioral1/memory/4428-44-0x0000000000A70000-0x0000000000AF9000-memory.dmp UPX behavioral1/memory/4428-58-0x0000000000A70000-0x0000000000AF9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4544 20bbc4de - 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 3 114.114.114.114 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 23 114.114.114.114 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 24 223.5.5.5 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_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\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 20bbc4de File created C:\Windows\SysWOW64\20bbc4de 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 20bbc4de File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 20bbc4de -
resource yara_rule behavioral1/memory/4428-0-0x0000000000A70000-0x0000000000AF9000-memory.dmp upx behavioral1/files/0x000c000000023759-2.dat upx behavioral1/memory/4544-3-0x0000000000F10000-0x0000000000F99000-memory.dmp upx behavioral1/memory/4428-10-0x0000000000A70000-0x0000000000AF9000-memory.dmp upx behavioral1/memory/4544-12-0x0000000000F10000-0x0000000000F99000-memory.dmp upx behavioral1/memory/4544-26-0x0000000000F10000-0x0000000000F99000-memory.dmp upx behavioral1/memory/4428-24-0x0000000000A70000-0x0000000000AF9000-memory.dmp upx behavioral1/memory/4544-36-0x0000000000F10000-0x0000000000F99000-memory.dmp upx behavioral1/memory/4428-44-0x0000000000A70000-0x0000000000AF9000-memory.dmp upx behavioral1/memory/4428-58-0x0000000000A70000-0x0000000000AF9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4dcb80 20bbc4de File opened for modification C:\Windows\4bcf18 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_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 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 20bbc4de - 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 20bbc4de Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 20bbc4de Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 20bbc4de Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 20bbc4de Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 20bbc4de Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 20bbc4de Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 20bbc4de Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 20bbc4de Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 20bbc4de - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4544 20bbc4de 4544 20bbc4de 4544 20bbc4de 4544 20bbc4de 4544 20bbc4de 4544 20bbc4de 4544 20bbc4de 4544 20bbc4de 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4428 2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4544 20bbc4de Token: SeTcbPrivilege 4544 20bbc4de
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-20_7c54ded681c799c95a19d35210ec7f3f_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-20_7c54ded681c799c95a19d35210ec7f3f_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:4428
-
C:\Windows\Syswow64\20bbc4deC:\Windows\Syswow64\20bbc4de1⤵
- 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:4544
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\20bbc4de
- Size 1.4MB
- SHA256 ef1937cb0a931514f0b87afdc7d0c0cb8e1ed368fdbc8b7a75c3ab1ec4d1fb62
- MD5 d6a7ea357f8941f6784a6251e0c47426
- SHA1 69e07240891a68a5859b672567c553b2b6947cd4
- SHA512 a8d0f10c19dedd14e5cbcc63ebe6f35f5a874f08adc510392bb7b48ca0c7dcfd6f93db6c68fd4c94b186d150db22e55afa9715af94323e574467e71a3273d263
- SSDEEP 24576:wjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:wTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T139658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH