Analysis
- max time kernel
149s - max time network
156s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
21/04/2026, 00:16
Behavioral task
behavioral1
Sample
17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe
Resource
win10v2004-20260130-en
10 signatures
150 seconds
General
- Target 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe
- Size 761KB
- Sample260421-akjayaf16n
- SHA256 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c
- MD5 55cf2300a033e9336b2411f02efdea45
- SHA1 61ea81c2967f699444df03dcc12971c0c8c513f7
- SHA512 d7959d0eac48ec7d2e3fe5177a6ccdb5232a05f48a93d227a6bea5cc9bd3e3d339b60bc9b25a698c9ac32111f37db08217ec12efd08ede71a1429ee46b97e669
- SSDEEP 12288:QSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:LvO2xJKRw2kOkxSkW298B
- TLSH T1FBF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4304 af4baf9c - 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 51 223.5.5.5 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe Destination IP 1 114.114.114.114 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe Destination IP 2 223.5.5.5 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe Destination IP 7 114.114.114.114 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe Destination IP 8 223.5.5.5 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe Destination IP 50 114.114.114.114 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe - Drops file in System32 directory 5 IoCs
description ioc Process File created C:\Windows\SysWOW64\af4baf9c 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 af4baf9c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE af4baf9c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies af4baf9c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 af4baf9c -
resource yara_rule behavioral2/memory/4648-0-0x0000000000650000-0x00000000006DC000-memory.dmp upx behavioral2/files/0x000b00000002ab4c-2.dat upx behavioral2/memory/4304-4-0x0000000000360000-0x00000000003EC000-memory.dmp upx behavioral2/memory/4648-10-0x0000000000650000-0x00000000006DC000-memory.dmp upx behavioral2/memory/4304-13-0x0000000000360000-0x00000000003EC000-memory.dmp upx behavioral2/memory/4304-33-0x0000000000360000-0x00000000003EC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4f9350 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe File opened for modification C:\Windows\49afa0 af4baf9c - 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 af4baf9c Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe - 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 af4baf9c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" af4baf9c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" af4baf9c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" af4baf9c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" af4baf9c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" af4baf9c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing af4baf9c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ af4baf9c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" af4baf9c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4304 af4baf9c 4304 af4baf9c 4304 af4baf9c 4304 af4baf9c 4304 af4baf9c 4304 af4baf9c 4304 af4baf9c 4304 af4baf9c 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe Token: SeTcbPrivilege 4648 17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe Token: SeDebugPrivilege 4304 af4baf9c Token: SeTcbPrivilege 4304 af4baf9c
Processes
-
C:\Users\Admin\AppData\Local\Temp\17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.exe"C:\Users\Admin\AppData\Local\Temp\17f23f1afed8a592171b993fa3dd4f79529f9db904735e36f1668625ff5cf78c.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:4648
-
C:\Windows\Syswow64\af4baf9cC:\Windows\Syswow64\af4baf9c1⤵
- 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:4304
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\af4baf9c
- Size 761KB
- SHA256 935fe0d8c39c2cc3bcc79d76762a1dece3a32cd29db588904082d1ba686da067
- MD5 7fd4b19566ff7ff029efe3543c67aff2
- SHA1 0d6bd042035268be4b1b848754a4df4c2adf737f
- SHA512 25905860dab30fbeeb580ec07de6ced8f87ab823606344c253f46851b3214d4d6774d68df9759ae289442801a3f4b1e5093adc57ff56e36d83f9c6de3f2ec20e
- SSDEEP 12288:SSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:5vO2xJKRw2kOkxSkW298B
- TLSH T153F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH