Analysis
- max time kernel
149s - max time network
133s - platform
windows11-21h2_x64 - resource
win11-20250610-en - resource tags
arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system - submitted
08/05/2026, 21:55
Behavioral task
behavioral1
Sample
b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe
Resource
win10v2004-20260130-en
9 signatures
150 seconds
General
- Target b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe
- Size 761KB
- Sample260508-1synpsav5k
- SHA256 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e
- MD5 cefdc28c3b51e10022a735eb7ecac8dc
- SHA1 1765b56f4747fd7292ad5386d188739c33c4f421
- SHA512 afe64c192c7082c3414cdce4e852aeb35cde3490d01649f6a61e4ed2516c2a2ab44b8e014e5421edbb218c7b08b449c1a1bcf9d86f4ab688f7068f06865af9be
- SSDEEP 12288:lSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:EvO2xJKRw2kOkxSkW298B
- TLSH T12EF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3296 899537c3 - 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 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe Destination IP 3 223.5.5.5 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe Destination IP 5 114.114.114.114 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe Destination IP 6 223.5.5.5 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe - Drops file in System32 directory 5 IoCs
description ioc Process File created C:\Windows\SysWOW64\899537c3 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 899537c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 899537c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 899537c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 899537c3 -
resource yara_rule behavioral2/memory/4680-0-0x0000000000FF0000-0x000000000107C000-memory.dmp upx behavioral2/files/0x001800000002ad04-2.dat upx behavioral2/memory/3296-3-0x0000000000AE0000-0x0000000000B6C000-memory.dmp upx behavioral2/memory/4680-10-0x0000000000FF0000-0x000000000107C000-memory.dmp upx behavioral2/memory/3296-11-0x0000000000AE0000-0x0000000000B6C000-memory.dmp upx behavioral2/memory/3296-16-0x0000000000AE0000-0x0000000000B6C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\501f90 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe File opened for modification C:\Windows\386dc0 899537c3 - 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 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 899537c3 - Modifies data under HKEY_USERS 8 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 899537c3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 899537c3 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 899537c3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 899537c3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 899537c3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 899537c3 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 899537c3 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 899537c3 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3296 899537c3 3296 899537c3 3296 899537c3 3296 899537c3 3296 899537c3 3296 899537c3 3296 899537c3 3296 899537c3 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe Token: SeTcbPrivilege 4680 b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe Token: SeDebugPrivilege 3296 899537c3 Token: SeTcbPrivilege 3296 899537c3
Processes
-
C:\Users\Admin\AppData\Local\Temp\b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.exe"C:\Users\Admin\AppData\Local\Temp\b97541fddc42059c8869b8c08727718a52271ed4c20628f4a45af30c7f9fdf0e.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:4680
-
C:\Windows\Syswow64\899537c3C:\Windows\Syswow64\899537c31⤵
- 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:3296
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\899537c3
- Size 761KB
- SHA256 6fe2b647862ff8026131411b4a414c606d066b21ff4309a1635e78c0f81c0d32
- MD5 dfd43af476794fc943ef11cda89235ff
- SHA1 db8565e45bd0b81550b4edfbeb63fd56d8ea4a61
- SHA512 321d417a77c5bc93903ddce08167891b7a553ba8accffe41833000d75f412ebd9a6f36d23b92cfa0040088a9d078160a210f23f5c0bc4b35fbccea4875bf2dfe
- SSDEEP 12288:GSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:lvO2xJKRw2kOkxSkW298B
- TLSH T1E7F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH