Analysis
- max time kernel
148s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 12:39
Behavioral task
behavioral1
Sample
2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
General
- Target 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
- Size 1.4MB
- Sample260804-pvmtfawzb1
- SHA256 81fa9f2a44bca35d2d023dd41cfe5f4d5e68b09c1a6ee5b5e343a41dc81f85f7
- MD5 2b8d8be7132eb665dc1ea68fb277a149
- SHA1 d42c80019bcc8aad2406f82ede88f02622018843
- SHA512 59e6ecb552d1ba8e2646d9b738bbacbdd35be0a69528558ffd32da0f504322a2e89525ba39ae7f8f68d3ccc9425e9e02c829afb18e8de96df9ed50075de4a5ea
- SSDEEP 24576:8jHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:8TGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T159658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x00170000000115e1-2.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x00170000000115e1-2.dat CryptoLocker_set1 - UPX dump on OEP (original entry point) 11 IoCs
resource yara_rule behavioral2/memory/4568-0-0x0000000000050000-0x00000000000D9000-memory.dmp UPX behavioral2/files/0x00170000000115e1-2.dat UPX behavioral2/memory/3324-3-0x0000000000AA0000-0x0000000000B29000-memory.dmp UPX behavioral2/memory/4568-18-0x0000000000050000-0x00000000000D9000-memory.dmp UPX behavioral2/memory/3324-20-0x0000000000AA0000-0x0000000000B29000-memory.dmp UPX behavioral2/memory/3324-24-0x0000000000AA0000-0x0000000000B29000-memory.dmp UPX behavioral2/memory/4568-39-0x0000000000050000-0x00000000000D9000-memory.dmp UPX behavioral2/memory/3324-40-0x0000000000AA0000-0x0000000000B29000-memory.dmp UPX behavioral2/memory/3324-42-0x0000000000AA0000-0x0000000000B29000-memory.dmp UPX behavioral2/memory/4568-43-0x0000000000050000-0x00000000000D9000-memory.dmp UPX behavioral2/memory/4568-51-0x0000000000050000-0x00000000000D9000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 3324 a52e727f - 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 13 114.114.114.114 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 14 223.5.5.5 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 53 114.114.114.114 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 54 223.5.5.5 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 1 114.114.114.114 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Destination IP 2 223.5.5.5 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_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\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a52e727f File created C:\Windows\SysWOW64\a52e727f 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a52e727f File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a52e727f -
resource yara_rule behavioral2/memory/4568-0-0x0000000000050000-0x00000000000D9000-memory.dmp upx behavioral2/files/0x00170000000115e1-2.dat upx behavioral2/memory/3324-3-0x0000000000AA0000-0x0000000000B29000-memory.dmp upx behavioral2/memory/4568-18-0x0000000000050000-0x00000000000D9000-memory.dmp upx behavioral2/memory/3324-20-0x0000000000AA0000-0x0000000000B29000-memory.dmp upx behavioral2/memory/3324-24-0x0000000000AA0000-0x0000000000B29000-memory.dmp upx behavioral2/memory/4568-39-0x0000000000050000-0x00000000000D9000-memory.dmp upx behavioral2/memory/3324-40-0x0000000000AA0000-0x0000000000B29000-memory.dmp upx behavioral2/memory/3324-42-0x0000000000AA0000-0x0000000000B29000-memory.dmp upx behavioral2/memory/4568-43-0x0000000000050000-0x00000000000D9000-memory.dmp upx behavioral2/memory/4568-51-0x0000000000050000-0x00000000000D9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\38e878 a52e727f File opened for modification C:\Windows\4e34b0 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_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 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a52e727f - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a52e727f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a52e727f Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a52e727f Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a52e727f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a52e727f Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a52e727f Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" a52e727f Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a52e727f Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a52e727f - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3324 a52e727f 3324 a52e727f 3324 a52e727f 3324 a52e727f 3324 a52e727f 3324 a52e727f 3324 a52e727f 3324 a52e727f 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeTcbPrivilege 4568 2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe Token: SeDebugPrivilege 3324 a52e727f Token: SeTcbPrivilege 3324 a52e727f
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-03_2b8d8be7132eb665dc1ea68fb277a149_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:4568
-
C:\Windows\Syswow64\a52e727fC:\Windows\Syswow64\a52e727f1⤵
- 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:3324
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a52e727f
- Size 1.4MB
- SHA256 45bf81f65fa08843dc5620c576034efa8b1ee4ef66b48972c48dde9162754804
- MD5 bd7e5551c7b6a88a8a70006c60953f1e
- SHA1 24f133e0b4eb9f0b7b4d16f6e5eb17b99d160039
- SHA512 41fcb18c6270a281fe9d45471cdfda046f84a4d272bade40e7cf46f74fb462c4fdfe57cbe54b4481f1c2a3cb5a94d45803ef50e77f4003e3bd5767b339d02928
- SSDEEP 24576:kjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:kTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T12B658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH