Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
28/05/2026, 08:50
Behavioral task
behavioral1
Sample
2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win11-20260513-en
windows11-21h2-x64
13 signatures
150 seconds
General
- Target 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260528-krmbaacy2w
- SHA256 be034017987e2186c86e60fda50bb9603e5780b1473beb3d68cdc6c373201b21
- MD5 ccea32a7a7498e0a865577a7f066223b
- SHA1 76534d92f41b59212228f8de436f8b29ebbc167f
- SHA512 52be2d266cf27d3df9422d2e73489255edb9e7a4af6ee8118ab3bfebc7db1dfd6a8f4f5d211c68f2232afcf82f391953e8e1b3ba3c6b23fc5b3e047a34666c89
- SSDEEP 24576:VjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:VTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T13C658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000c000000024244-2.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000c000000024244-2.dat CryptoLocker_set1 - Custom signatureUPX dump on OEP (original entry point) 10 IoCs
resource yara_rule behavioral1/memory/4140-0-0x00000000007E0000-0x0000000000869000-memory.dmp UPX behavioral1/files/0x000c000000024244-2.dat UPX behavioral1/memory/5076-4-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/4140-18-0x00000000007E0000-0x0000000000869000-memory.dmp UPX behavioral1/memory/5076-20-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/4140-35-0x00000000007E0000-0x0000000000869000-memory.dmp UPX behavioral1/memory/5076-36-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/5076-38-0x0000000000A20000-0x0000000000AA9000-memory.dmp UPX behavioral1/memory/4140-45-0x00000000007E0000-0x0000000000869000-memory.dmp UPX behavioral1/memory/4140-49-0x00000000007E0000-0x0000000000869000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 5076 735aa2fe - 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 2 114.114.114.114 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 4 223.5.5.5 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 66 114.114.114.114 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 67 223.5.5.5 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_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 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 735aa2fe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 735aa2fe File created C:\Windows\SysWOW64\735aa2fe 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe -
resource yara_rule behavioral1/memory/4140-0-0x00000000007E0000-0x0000000000869000-memory.dmp upx behavioral1/files/0x000c000000024244-2.dat upx behavioral1/memory/5076-4-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/4140-18-0x00000000007E0000-0x0000000000869000-memory.dmp upx behavioral1/memory/5076-20-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/4140-35-0x00000000007E0000-0x0000000000869000-memory.dmp upx behavioral1/memory/5076-36-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/5076-38-0x0000000000A20000-0x0000000000AA9000-memory.dmp upx behavioral1/memory/4140-45-0x00000000007E0000-0x0000000000869000-memory.dmp upx behavioral1/memory/4140-49-0x00000000007E0000-0x0000000000869000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\56e728 735aa2fe File opened for modification C:\Windows\46e0d8 2026-05-28_ccea32a7a7498e0a865577a7f066223b_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 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 735aa2fe - 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 735aa2fe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 735aa2fe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 735aa2fe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 735aa2fe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 735aa2fe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 735aa2fe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 735aa2fe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 735aa2fe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 735aa2fe - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5076 735aa2fe 5076 735aa2fe 5076 735aa2fe 5076 735aa2fe 5076 735aa2fe 5076 735aa2fe 5076 735aa2fe 5076 735aa2fe 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4140 2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 5076 735aa2fe Token: SeTcbPrivilege 5076 735aa2fe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-28_ccea32a7a7498e0a865577a7f066223b_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-28_ccea32a7a7498e0a865577a7f066223b_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:4140
-
C:\Windows\Syswow64\735aa2feC:\Windows\Syswow64\735aa2fe1⤵
- 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:5076
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\735aa2fe
- Size 1.4MB
- SHA256 33d5af50e0e841d871f66631d7bc75039d09a2e39b6aeb45355189d1f195a5bf
- MD5 b1b6e297f07bd9c20d6eaa0d6368668d
- SHA1 7d5600379920622267a1aedf9d8924a198f485ab
- SHA512 0628420c5ad0fc7352335abc75014da694658ebb6c0864c6568ff72d780171ac71c62037a00d139e7373b5281e62ba7fba9ca25453e2dfe4dc2b77208120c0dd
- SSDEEP 24576:ijHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:iTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1A5658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH