Analysis
- max time kernel
149s - max time network
155s - 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, 12:15
Behavioral task
behavioral1
Sample
2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260503-pewfmsb14n
- SHA256 ce582d9ab365fc5e4cfcea78bdc910ca9275cdb4daa26c68f55c20318a07c179
- MD5 cabdc779e7f6ce86df005d26113d8513
- SHA1 d705fb1ce342d416251e3f7e2141c6d896c4a6c7
- SHA512 064c59d7ca9ac98c54d1c8075a9ae2093db623b977889ed13c2574dc95e978a42ce90f4f4572b5ed653e29e66c957ad7ce337912069a9d9feeac6ad23cb028f3
- SSDEEP 24576:kjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:kTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T11B658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000b00000002ab4c-2.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000b00000002ab4c-2.dat CryptoLocker_set1 - Custom signatureUPX dump on OEP (original entry point) 9 IoCs
resource yara_rule behavioral2/memory/4648-0-0x0000000000310000-0x0000000000399000-memory.dmp UPX behavioral2/files/0x000b00000002ab4c-2.dat UPX behavioral2/memory/4212-4-0x00000000007C0000-0x0000000000849000-memory.dmp UPX behavioral2/memory/4648-15-0x0000000000310000-0x0000000000399000-memory.dmp UPX behavioral2/memory/4212-20-0x00000000007C0000-0x0000000000849000-memory.dmp UPX behavioral2/memory/4648-38-0x0000000000310000-0x0000000000399000-memory.dmp UPX behavioral2/memory/4212-40-0x00000000007C0000-0x0000000000849000-memory.dmp UPX behavioral2/memory/4648-48-0x0000000000310000-0x0000000000399000-memory.dmp UPX behavioral2/memory/4648-74-0x0000000000310000-0x0000000000399000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4212 ad600d24 - 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 2 223.5.5.5 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 11 114.114.114.114 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 12 223.5.5.5 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 1 114.114.114.114 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C ad600d24 File created C:\Windows\SysWOW64\ad600d24 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ad600d24 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ad600d24 -
resource yara_rule behavioral2/memory/4648-0-0x0000000000310000-0x0000000000399000-memory.dmp upx behavioral2/files/0x000b00000002ab4c-2.dat upx behavioral2/memory/4212-4-0x00000000007C0000-0x0000000000849000-memory.dmp upx behavioral2/memory/4648-15-0x0000000000310000-0x0000000000399000-memory.dmp upx behavioral2/memory/4212-20-0x00000000007C0000-0x0000000000849000-memory.dmp upx behavioral2/memory/4648-38-0x0000000000310000-0x0000000000399000-memory.dmp upx behavioral2/memory/4212-40-0x00000000007C0000-0x0000000000849000-memory.dmp upx behavioral2/memory/4648-48-0x0000000000310000-0x0000000000399000-memory.dmp upx behavioral2/memory/4648-74-0x0000000000310000-0x0000000000399000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\481c68 ad600d24 File opened for modification C:\Windows\4f9350 2026-05-03_cabdc779e7f6ce86df005d26113d8513_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_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ad600d24 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" ad600d24 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" ad600d24 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" ad600d24 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" ad600d24 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" ad600d24 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing ad600d24 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix ad600d24 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" ad600d24 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ ad600d24 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4212 ad600d24 4212 ad600d24 4212 ad600d24 4212 ad600d24 4212 ad600d24 4212 ad600d24 4212 ad600d24 4212 ad600d24 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4648 2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4212 ad600d24 Token: SeTcbPrivilege 4212 ad600d24
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-03_cabdc779e7f6ce86df005d26113d8513_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-03_cabdc779e7f6ce86df005d26113d8513_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:4648
-
C:\Windows\Syswow64\ad600d24C:\Windows\Syswow64\ad600d241⤵
- 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:4212
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\ad600d24
- Size 1.4MB
- SHA256 7aaf3ed43f47ab758ea7161a7b55d43bbfc5c87c3d83c2c005e856227c13252d
- MD5 5607b68fa0149d25ce7496536a44dbdb
- SHA1 167b452f4922a5a80446dcac9f45e14250b379a6
- SHA512 76fd2bc1162a44f260913955031df8f3409aa9099a3cf0f671f4ef58f90c59d54f4ce4f614ef92588b1f4df8f2422efa93bda639c3916f6dac2e07a4276bca84
- SSDEEP 24576:rjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:rTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1EF658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH