Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
03/05/2026, 23:07
Behavioral task
behavioral1
Sample
2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260503-24dcksdv2m
- SHA256 0523f2fbcce1aa15650f5ee5bee0c1ed3e15b457203356e914f6b49cde6ed0b8
- MD5 7a83f04a8e9710306b1041de4762f7f1
- SHA1 d9e18be495d5508c5d3936e764e156b9696cbfa8
- SHA512 91a8ff4168f5bb1b72efb8255bd2fb58c464a0ae22c35a9608ef1c67b24bdb7362a24e1477fcd6060c44878475314fe3e9d1e97c7765f7bfcf8b197f2c046b9a
- SSDEEP 24576:HjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:HTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T18C658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000900000000d3db-4.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000900000000d3db-4.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral2/memory/3980-0-0x0000000000890000-0x0000000000919000-memory.dmp UPX behavioral2/files/0x000900000000d3db-4.dat UPX behavioral2/memory/4456-3-0x00000000006C0000-0x0000000000749000-memory.dmp UPX behavioral2/memory/3980-15-0x0000000000890000-0x0000000000919000-memory.dmp UPX behavioral2/memory/4456-17-0x00000000006C0000-0x0000000000749000-memory.dmp UPX behavioral2/memory/4456-22-0x00000000006C0000-0x0000000000749000-memory.dmp UPX behavioral2/memory/3980-31-0x0000000000890000-0x0000000000919000-memory.dmp UPX behavioral2/memory/4456-32-0x00000000006C0000-0x0000000000749000-memory.dmp UPX behavioral2/memory/4456-36-0x00000000006C0000-0x0000000000749000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4456 cdda5525 - Unexpected DNS network traffic destination 6 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 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 12 114.114.114.114 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 13 223.5.5.5 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 60 114.114.114.114 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 61 223.5.5.5 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 17 IoCs
description ioc Process File created C:\Windows\SysWOW64\cdda5525 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 cdda5525 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 cdda5525 -
resource yara_rule behavioral2/memory/3980-0-0x0000000000890000-0x0000000000919000-memory.dmp upx behavioral2/files/0x000900000000d3db-4.dat upx behavioral2/memory/4456-3-0x00000000006C0000-0x0000000000749000-memory.dmp upx behavioral2/memory/3980-15-0x0000000000890000-0x0000000000919000-memory.dmp upx behavioral2/memory/4456-17-0x00000000006C0000-0x0000000000749000-memory.dmp upx behavioral2/memory/4456-22-0x00000000006C0000-0x0000000000749000-memory.dmp upx behavioral2/memory/3980-31-0x0000000000890000-0x0000000000919000-memory.dmp upx behavioral2/memory/4456-32-0x00000000006C0000-0x0000000000749000-memory.dmp upx behavioral2/memory/4456-36-0x00000000006C0000-0x0000000000749000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4c49d0 cdda5525 File opened for modification C:\Windows\442398 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_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 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cdda5525 - 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\History\CachePrefix = "Visited:" cdda5525 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" cdda5525 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" cdda5525 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" cdda5525 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" cdda5525 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing cdda5525 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix cdda5525 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ cdda5525 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" cdda5525 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4456 cdda5525 4456 cdda5525 4456 cdda5525 4456 cdda5525 4456 cdda5525 4456 cdda5525 4456 cdda5525 4456 cdda5525 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 3980 2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4456 cdda5525 Token: SeTcbPrivilege 4456 cdda5525
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-03_7a83f04a8e9710306b1041de4762f7f1_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-03_7a83f04a8e9710306b1041de4762f7f1_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:3980
-
C:\Windows\Syswow64\cdda5525C:\Windows\Syswow64\cdda55251⤵
- 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:4456
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\cdda5525
- Size 1.4MB
- SHA256 f722ad98198b2d88a16b68c5ffc5568872ee07c256bab27397ac295af906254a
- MD5 036aa39ed98385b93a28601281c20a04
- SHA1 a054abc02c07648c1a0ddffa0cbf555d97f539de
- SHA512 b8935433eaedbec59dfd5e73ebfa4592aef59e6083b8f8e779537fed42f8d705e8c7ff12626c3ec30830038b84418538faecc10b612aa56b315d4ae468f878d7
- SSDEEP 24576:VjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:VTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T115658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH