Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
20/09/2026, 23:59
Behavioral task
behavioral1
Sample
f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe
- Size 1024KB
- Sample260920-314wssec47
- SHA256 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272
- MD5 c0742a08c07f5f28d21f02007b2a67bc
- SHA1 2532b60542e235b20685d2eeb96155c4124e3475
- SHA512 570122ff16301fd00fc53f961264257f6592260547e6c184c2c37b33ffdef1e97e0f040eed4117b14ab5394bde3e922001f08cfc3bcb2e34a3ab58cbac9f6c18
- SSDEEP 12288:JSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidH:wvO2xJKRw2kOkx2LFRvcU6UQOJdH
- TLSH T1E0256C31E681C036D5B34571C6FA4BBBA9647D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4948 a794071c - 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 48 114.114.114.114 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Destination IP 49 223.5.5.5 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Destination IP 3 114.114.114.114 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Destination IP 4 223.5.5.5 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a794071c File created C:\Windows\SysWOW64\a794071c f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a794071c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a794071c -
resource yara_rule behavioral1/memory/3712-0-0x00000000009A0000-0x0000000000A2C000-memory.dmp upx behavioral1/files/0x00070000000004e8-2.dat upx behavioral1/memory/4948-4-0x00000000002C0000-0x000000000034C000-memory.dmp upx behavioral1/memory/3712-16-0x00000000009A0000-0x0000000000A2C000-memory.dmp upx behavioral1/memory/4948-17-0x00000000002C0000-0x000000000034C000-memory.dmp upx behavioral1/memory/4948-28-0x00000000002C0000-0x000000000034C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\54b628 a794071c File opened for modification C:\Windows\3f8d00 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.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 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a794071c - 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\Cookies\CachePrefix = "Cookie:" a794071c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a794071c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a794071c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a794071c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a794071c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a794071c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a794071c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a794071c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a794071c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4948 a794071c 4948 a794071c 4948 a794071c 4948 a794071c 4948 a794071c 4948 a794071c 4948 a794071c 4948 a794071c 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Token: SeTcbPrivilege 3712 f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe Token: SeDebugPrivilege 4948 a794071c Token: SeTcbPrivilege 4948 a794071c
Processes
-
C:\Users\Admin\AppData\Local\Temp\f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.exe"C:\Users\Admin\AppData\Local\Temp\f3b57b4427f139f97156a716722c9d9f6ce79507f9d36fc347caeff5ca9ca272.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:3712
-
C:\Windows\Syswow64\a794071cC:\Windows\Syswow64\a794071c1⤵
- 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:4948
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a794071c
- Size 1024KB
- SHA256 cd9173f51753c3ff41f98f47be428d32eb65fe3cc5b1c779681d27703ad7f337
- MD5 eaddfca10590654e19b3851196697708
- SHA1 7f17fd2668ffbdf0ab11c78920ecc1b1daa5cb51
- SHA512 463a43cd3ff6b74b3f16e8bbae68b397a054000dd4e0a23d8580f8e27a3636233668cbef91e0b5bdfbb2d3de9806d541a6f075862b5e9d8ba2da070f356497f7
- SSDEEP 12288:ASvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidH:bvO2xJKRw2kOkx2LFRvcU6UQOJdH
- TLSH T177256C31E681C036D5B34571C6FA4BBBA9647D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH