Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
11/05/2026, 08:37
Behavioral task
behavioral1
Sample
661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe
- Size 640KB
- Sample260511-kh9efsdv8t
- SHA256 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115
- MD5 3f6984536230f382eab58ecd0195a72c
- SHA1 a288ce3da2684297fcebc31ce44565bd7939b2b8
- SHA512 6f8c8b2135a9be7232366fff95bcb2d65dcf3aa7561875f4867f73bda15134915b7f39f5f58b6f61baf7034046471c26d84f5fbec2c57cfe56ab13b04be02664
- SSDEEP 6144:3cTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:3SvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1A1D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4484 699fcffc - 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 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe Destination IP 4 223.5.5.5 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe Destination IP 31 114.114.114.114 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe Destination IP 32 223.5.5.5 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AAD646CB44373074ADE741C38400E7E1 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\AAD646CB44373074ADE741C38400E7E1 699fcffc File created C:\Windows\SysWOW64\699fcffc 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 699fcffc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 699fcffc -
resource yara_rule behavioral1/memory/4460-0-0x00000000006B0000-0x000000000073C000-memory.dmp upx behavioral1/memory/4484-4-0x0000000000670000-0x00000000006FC000-memory.dmp upx behavioral1/files/0x0008000000024448-3.dat upx behavioral1/memory/4460-10-0x00000000006B0000-0x000000000073C000-memory.dmp upx behavioral1/memory/4484-11-0x0000000000670000-0x00000000006FC000-memory.dmp upx behavioral1/memory/4484-31-0x0000000000670000-0x00000000006FC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4cc488 699fcffc File opened for modification C:\Windows\4c5b58 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.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 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 699fcffc - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 699fcffc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 699fcffc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 699fcffc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 699fcffc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 699fcffc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 699fcffc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 699fcffc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 699fcffc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 699fcffc - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4484 699fcffc 4484 699fcffc 4484 699fcffc 4484 699fcffc 4484 699fcffc 4484 699fcffc 4484 699fcffc 4484 699fcffc 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe Token: SeTcbPrivilege 4460 661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe Token: SeDebugPrivilege 4484 699fcffc Token: SeTcbPrivilege 4484 699fcffc
Processes
-
C:\Users\Admin\AppData\Local\Temp\661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.exe"C:\Users\Admin\AppData\Local\Temp\661ccbe4a0a640ac3bf37d814a080a956cb7aa8e4f674c72faeadbf6f92c8115.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:4460
-
C:\Windows\Syswow64\699fcffcC:\Windows\Syswow64\699fcffc1⤵
- 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:4484
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\699fcffc
- Size 640KB
- SHA256 a8a299db656493d91c9a15108517c6447a8e089c23448848895a7e6d629b8d27
- MD5 ec4a7b5c331009f4082326fc4fc03688
- SHA1 a89fa610e62e0c5a3e728257065922e9d3af54f2
- SHA512 d97528da8dab98cee74fec0a2cbf5bcd4342c21508229d4e6ff429cb5f389f1b97c93db605defd6e4f026c8c9d50c7ff9a128f1eab7ac26bace167a84bc25e4b
- SSDEEP 6144:vcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:vSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1B4D45B35A6808036C0B74631C6F64BAAF9B5BC25631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH