Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
18/04/2026, 22:45
Behavioral task
behavioral1
Sample
4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe
- Size 618KB
- Sample260418-2pr77ahs7m
- SHA256 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad
- MD5 d089032b38d457b5f76afabb7e50b052
- SHA1 64297b47cbfaca48d43d1fdab7e72da61d405233
- SHA512 9c5e520053affd4e00953248a091ad980e8ca0358183f0c9c477cc527620192e27ed629d63dabd3016f3bf526dd3a9d38c252802008fcafaa2a5454c2e9e3290
- SSDEEP 12288:sqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEW:sjHPOSOkx2LFscUQPxW
- TLSH T150D47C31E201C03AD0A74576C6FE0BAFA5687D25431662C7A3D479362FF72D2AA3171E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1960 a9f08eaf - 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 10 223.5.5.5 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe Destination IP 1 114.114.114.114 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe Destination IP 2 223.5.5.5 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe Destination IP 9 114.114.114.114 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a9f08eaf File created C:\Windows\SysWOW64\a9f08eaf 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a9f08eaf File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a9f08eaf -
resource yara_rule behavioral2/memory/3984-0-0x0000000000050000-0x00000000000D9000-memory.dmp upx behavioral2/files/0x002300000002b086-2.dat upx behavioral2/memory/1960-4-0x00000000001C0000-0x0000000000249000-memory.dmp upx behavioral2/memory/3984-10-0x0000000000050000-0x00000000000D9000-memory.dmp upx behavioral2/memory/1960-12-0x00000000001C0000-0x0000000000249000-memory.dmp upx behavioral2/memory/3984-32-0x0000000000050000-0x00000000000D9000-memory.dmp upx behavioral2/memory/1960-33-0x00000000001C0000-0x0000000000249000-memory.dmp upx behavioral2/memory/3984-42-0x0000000000050000-0x00000000000D9000-memory.dmp upx behavioral2/memory/3984-52-0x0000000000050000-0x00000000000D9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\218e50 a9f08eaf File opened for modification C:\Windows\443520 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.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 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a9f08eaf - 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" a9f08eaf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a9f08eaf Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a9f08eaf Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" a9f08eaf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a9f08eaf Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a9f08eaf Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a9f08eaf Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a9f08eaf Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a9f08eaf - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1960 a9f08eaf 1960 a9f08eaf 1960 a9f08eaf 1960 a9f08eaf 1960 a9f08eaf 1960 a9f08eaf 1960 a9f08eaf 1960 a9f08eaf 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe Token: SeTcbPrivilege 3984 4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe Token: SeDebugPrivilege 1960 a9f08eaf Token: SeTcbPrivilege 1960 a9f08eaf
Processes
-
C:\Users\Admin\AppData\Local\Temp\4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.exe"C:\Users\Admin\AppData\Local\Temp\4a4d316a075748ab84ad582ac852aadebd9e822f0bfd93aad0b74150d56e16ad.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:3984
-
C:\Windows\Syswow64\a9f08eafC:\Windows\Syswow64\a9f08eaf1⤵
- 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:1960
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a9f08eaf
- Size 618KB
- SHA256 5343d5842eafe5395e17a9abb25b569138c1f943a8131a7378d6d145bb4fcdcc
- MD5 f54b897112d59e8f692aa57816c7a2cd
- SHA1 dd7cb5c6bfac7393b58822cf993a23a0c0c28c0f
- SHA512 6cceaefbc8bfcca199d242ad8a945631f232e3590b4979c596df5cf6bc4b268aff232e5977b6305eafec54c0ad68a095926127bada88c98ca5dfe12ceeb98cfe
- SSDEEP 12288:fqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEW:fjHPOSOkx2LFscUQPxW
- TLSH T14FD47C31E201C03AD0A74576C6FE0BAFA5687D25431662C7A3D479362FF72D2AA3171E
- MD5 SHA1 SHA512 SSDEEP TLSH