Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
22/04/2026, 04:29
Behavioral task
behavioral1
Sample
2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260422-e4b37agz8q
- SHA256 5d759f22b916b88707f557774e637e82da53df26b1682340d4412d40ae684c54
- MD5 af429246da503b2d2d127cf7076f20a9
- SHA1 dc91e1a3572ebfccba14da4ec2b24f87be1c2e25
- SHA512 45201696b74046bd042c2dc4e153a8478ca20fd9d6f579b9cc01c693a4d03b537a6041e820ffe810db5780c28bf34e7e8e2f79ecfb436e3fcd0f9d3bc5ad6636
- SSDEEP 24576:kjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:kTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T151658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000600000000d3f6-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000600000000d3f6-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral2/memory/4204-0-0x0000000000030000-0x00000000000B9000-memory.dmp UPX behavioral2/files/0x000600000000d3f6-2.dat UPX behavioral2/memory/4744-4-0x0000000000D10000-0x0000000000D99000-memory.dmp UPX behavioral2/memory/4204-18-0x0000000000030000-0x00000000000B9000-memory.dmp UPX behavioral2/memory/4744-20-0x0000000000D10000-0x0000000000D99000-memory.dmp UPX behavioral2/memory/4744-26-0x0000000000D10000-0x0000000000D99000-memory.dmp UPX behavioral2/memory/4204-32-0x0000000000030000-0x00000000000B9000-memory.dmp UPX behavioral2/memory/4744-34-0x0000000000D10000-0x0000000000D99000-memory.dmp UPX behavioral2/memory/4744-48-0x0000000000D10000-0x0000000000D99000-memory.dmp UPX behavioral2/memory/4204-60-0x0000000000030000-0x00000000000B9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4744 616c06a4 - 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 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 16 114.114.114.114 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 17 223.5.5.5 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_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\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 616c06a4 File created C:\Windows\SysWOW64\616c06a4 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 616c06a4 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 616c06a4 -
resource yara_rule behavioral2/memory/4204-0-0x0000000000030000-0x00000000000B9000-memory.dmp upx behavioral2/files/0x000600000000d3f6-2.dat upx behavioral2/memory/4744-4-0x0000000000D10000-0x0000000000D99000-memory.dmp upx behavioral2/memory/4204-18-0x0000000000030000-0x00000000000B9000-memory.dmp upx behavioral2/memory/4744-20-0x0000000000D10000-0x0000000000D99000-memory.dmp upx behavioral2/memory/4744-26-0x0000000000D10000-0x0000000000D99000-memory.dmp upx behavioral2/memory/4204-32-0x0000000000030000-0x00000000000B9000-memory.dmp upx behavioral2/memory/4744-34-0x0000000000D10000-0x0000000000D99000-memory.dmp upx behavioral2/memory/4744-48-0x0000000000D10000-0x0000000000D99000-memory.dmp upx behavioral2/memory/4204-60-0x0000000000030000-0x00000000000B9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\513810 616c06a4 File opened for modification C:\Windows\47f958 2026-04-22_af429246da503b2d2d127cf7076f20a9_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 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 616c06a4 - 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\Cookies\CachePrefix = "Cookie:" 616c06a4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 616c06a4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 616c06a4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 616c06a4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 616c06a4 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 616c06a4 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 616c06a4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 616c06a4 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 616c06a4 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4744 616c06a4 4744 616c06a4 4744 616c06a4 4744 616c06a4 4744 616c06a4 4744 616c06a4 4744 616c06a4 4744 616c06a4 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4204 2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 4744 616c06a4 Token: SeTcbPrivilege 4744 616c06a4
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-22_af429246da503b2d2d127cf7076f20a9_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-22_af429246da503b2d2d127cf7076f20a9_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:4204
-
C:\Windows\Syswow64\616c06a4C:\Windows\Syswow64\616c06a41⤵
- 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:4744
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\616c06a4
- Size 1.4MB
- SHA256 472b8cab1b0734843b6b3c6c80821e95be65f5c23f863c7060438a626f01c9b6
- MD5 8daceec74bab3886f3ba7a0e2f1dc3f2
- SHA1 b09f9804e037065091b22dc7eb3bae034fe5ce75
- SHA512 d10a480195321d37c79d27d74c03b34cd9317133e1087c592ea10dbddff14bdfe5f16cb6b9a7e4aa59122592cdb80af0d8f7570152f1133779f8747fb4191b2d
- SSDEEP 24576:WjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:WTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1E4658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH