Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
15/04/2026, 15:27
Behavioral task
behavioral1
Sample
48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe
- Size 761KB
- Sample260415-sv2jdad16y
- SHA256 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1
- MD5 def94a616c48718c19717e95e7831e6f
- SHA1 342e4ea29b0190860e08757d87f7a3560307e798
- SHA512 d346390d25e5e46feb32d239938b0085a480785b8c7cfa65480fa8f6de3e26627bd1c6da7498d6f89ec83712dedce2966be48396978be4d87cc22f15f8705ec0
- SSDEEP 12288:vSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:avO2xJKRw2kOkxSkW298B
- TLSH T1D0F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5084 9f19af44 - 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 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe Destination IP 2 223.5.5.5 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe Destination IP 15 114.114.114.114 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe Destination IP 16 223.5.5.5 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 9f19af44 File created C:\Windows\SysWOW64\9f19af44 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 9f19af44 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 9f19af44 -
resource yara_rule behavioral2/memory/4444-0-0x0000000000810000-0x000000000089C000-memory.dmp upx behavioral2/files/0x000900000002a117-2.dat upx behavioral2/memory/5084-4-0x0000000000620000-0x00000000006AC000-memory.dmp upx behavioral2/memory/4444-18-0x0000000000810000-0x000000000089C000-memory.dmp upx behavioral2/memory/5084-21-0x0000000000620000-0x00000000006AC000-memory.dmp upx behavioral2/memory/5084-40-0x0000000000620000-0x00000000006AC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\570a38 9f19af44 File opened for modification C:\Windows\4c1538 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.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 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 9f19af44 - 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 9f19af44 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 9f19af44 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 9f19af44 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 9f19af44 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 9f19af44 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 9f19af44 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 9f19af44 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 9f19af44 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 9f19af44 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5084 9f19af44 5084 9f19af44 5084 9f19af44 5084 9f19af44 5084 9f19af44 5084 9f19af44 5084 9f19af44 5084 9f19af44 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe Token: SeTcbPrivilege 4444 48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe Token: SeDebugPrivilege 5084 9f19af44 Token: SeTcbPrivilege 5084 9f19af44
Processes
-
C:\Users\Admin\AppData\Local\Temp\48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.exe"C:\Users\Admin\AppData\Local\Temp\48979ef5ea3bbfa2fa137e6d778898aa256c8e1e1df8ffb604fcded40a1481b1.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:4444
-
C:\Windows\Syswow64\9f19af44C:\Windows\Syswow64\9f19af441⤵
- 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:5084
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\9f19af44
- Size 761KB
- SHA256 0279d2919c75bff02818c2fa8dc083944af70dd1a68d22b04efbcf09616131c6
- MD5 622ea8d379217ff09a89de13614671dd
- SHA1 b9719fb0f86008780059328aff08f7833b9f6d6f
- SHA512 4a71a7a2c48665793ea1b72923713ec6eb89ec6fa38e67ab9f6c83db40f676314feee7df368f6699271ebf68eb06e5e827f0b46403319dc2c93a55b41a10233a
- SSDEEP 12288:lSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:EvO2xJKRw2kOkxSkW298B
- TLSH T1EFF49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH