Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
29/05/2026, 04:28
Behavioral task
behavioral1
Sample
11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe
- Size 638KB
- Sample260529-e3tlvac12z
- SHA256 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a
- MD5 91cee7c2d770c17d1b0bd950763ecaf6
- SHA1 0b7d0d48e3fd3eae775824ad841c9f2089d297c9
- SHA512 d17deade73090f16faf6eed62e917ecf5f8672bdca02f2419d4e8e3529f2af670ba06cabe4f114b80628c71e9c209a53b4d2b05c681d68927d57dd9e7b4e1eaa
- SSDEEP 6144:RcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:RSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T16CD46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4764 87a367c0 - 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 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe Destination IP 2 223.5.5.5 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe Destination IP 13 114.114.114.114 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe Destination IP 14 223.5.5.5 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 87a367c0 File created C:\Windows\SysWOW64\87a367c0 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 87a367c0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 87a367c0 -
resource yara_rule behavioral2/memory/5596-0-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx behavioral2/files/0x000400000002a8f9-2.dat upx behavioral2/memory/4764-3-0x0000000000CC0000-0x0000000000D4C000-memory.dmp upx behavioral2/memory/5596-18-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx behavioral2/memory/4764-19-0x0000000000CC0000-0x0000000000D4C000-memory.dmp upx behavioral2/memory/4764-32-0x0000000000CC0000-0x0000000000D4C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\518fb8 87a367c0 File opened for modification C:\Windows\5fce38 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.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 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 87a367c0 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 87a367c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 87a367c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 87a367c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 87a367c0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 87a367c0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 87a367c0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 87a367c0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 87a367c0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 87a367c0 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4764 87a367c0 4764 87a367c0 4764 87a367c0 4764 87a367c0 4764 87a367c0 4764 87a367c0 4764 87a367c0 4764 87a367c0 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe Token: SeTcbPrivilege 5596 11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe Token: SeDebugPrivilege 4764 87a367c0 Token: SeTcbPrivilege 4764 87a367c0
Processes
-
C:\Users\Admin\AppData\Local\Temp\11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.exe"C:\Users\Admin\AppData\Local\Temp\11d879a5ccfd43aacbf9735da5389edc261f96ff26aa3c10842d52853826809a.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:5596
-
C:\Windows\Syswow64\87a367c0C:\Windows\Syswow64\87a367c01⤵
- 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:4764
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\87a367c0
- Size 638KB
- SHA256 4df92c264088115598ab52de0eee14122c1fe9b85c229898facd38469589120e
- MD5 56729c888e3aea0918809559edb4a0ea
- SHA1 79918488ae4743c3a7abecb655c81a5c8529bb0b
- SHA512 946afa1fe0156bcf424f54a15abe745df363c82138bb0fed1516faef01eb5201b5929ea56e46c955d6ca32bf0d547fdc710b9099d43342921e61024d10d8900d
- SSDEEP 6144:scTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:sSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T19DD46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH