Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
20/07/2026, 19:16
Behavioral task
behavioral1
Sample
f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
10 signatures
150 seconds
General
- Target f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe
- Size 761KB
- Sample260720-xy2e1aet61
- SHA256 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc
- MD5 6c62dfbf45a26400caa6ce18275924c2
- SHA1 12a190f8d1a8ee950f9a85ac0891a210c652c484
- SHA512 c0607f3f1715d7151ea76fc0eebbf78ec6c364c2c96b955dc428065f0072950999346ebff7de77a75d1468c206e92ff4ba8fbe61e39196211d33dcaa77dd277a
- SSDEEP 12288:XSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:ivO2xJKRw2kOkxSkW298B
- TLSH T182F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4024 c4cfa77c - 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 3 114.114.114.114 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe Destination IP 5 223.5.5.5 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe Destination IP 48 114.114.114.114 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe Destination IP 49 223.5.5.5 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe - Drops file in System32 directory 13 IoCs
description ioc Process File created C:\Windows\SysWOW64\c4cfa77c f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 c4cfa77c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 c4cfa77c -
resource yara_rule behavioral1/memory/1436-0-0x00000000009D0000-0x0000000000A5C000-memory.dmp upx behavioral1/files/0x000a0000000244c1-2.dat upx behavioral1/memory/4024-4-0x0000000000670000-0x00000000006FC000-memory.dmp upx behavioral1/memory/1436-10-0x00000000009D0000-0x0000000000A5C000-memory.dmp upx behavioral1/memory/4024-11-0x0000000000670000-0x00000000006FC000-memory.dmp upx behavioral1/memory/4024-27-0x0000000000670000-0x00000000006FC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\44e470 c4cfa77c File opened for modification C:\Windows\1895b8 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.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 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c4cfa77c - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" c4cfa77c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" c4cfa77c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ c4cfa77c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" c4cfa77c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" c4cfa77c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing c4cfa77c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix c4cfa77c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" c4cfa77c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" c4cfa77c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4024 c4cfa77c 4024 c4cfa77c 4024 c4cfa77c 4024 c4cfa77c 4024 c4cfa77c 4024 c4cfa77c 4024 c4cfa77c 4024 c4cfa77c 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe Token: SeTcbPrivilege 1436 f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe Token: SeDebugPrivilege 4024 c4cfa77c Token: SeTcbPrivilege 4024 c4cfa77c
Processes
-
C:\Users\Admin\AppData\Local\Temp\f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.exe"C:\Users\Admin\AppData\Local\Temp\f268898610e53fb61e9928d3997f5ed071ba468aa938ab56efc94a96c2ca9bdc.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:1436
-
C:\Windows\Syswow64\c4cfa77cC:\Windows\Syswow64\c4cfa77c1⤵
- 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:4024
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\c4cfa77c
- Size 761KB
- SHA256 82c041114c86c05066f9d9e1bd248e0fe5375b9235d32cfd77b12160fa583d6f
- MD5 fd5dd2b011891757f54223be431763a8
- SHA1 691bbb7326de4843be6f9dcabb31c7a1c08e1ea0
- SHA512 cafddf36cf1d7e8b4c0cc9eec6822acf8c89f975ae6dc66d80723a1e96fa14f773eb91f73217bd058cba988a965c4d95e21abd9931b8936177f2d638e80d132f
- SSDEEP 12288:9SvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:cvO2xJKRw2kOkxSkW298B
- TLSH T1B1F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH