Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
27/05/2026, 14:26
Behavioral task
behavioral1
Sample
25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe
- Size 640KB
- Sample260527-rr3rlaf13p
- SHA256 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d
- MD5 9785edb91dbdbd997722147b866efff6
- SHA1 a263bd63d5fcb21c7fae347de9a87a56d6f970ae
- SHA512 280358019a8107aa83eef9853bcf144686393af428f3d105ddab33e7180bbc3f58fafbf084e03be56dfc6ea6d42e037711faf0c856fc067ff199427f025427af
- SSDEEP 6144:McTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:MSvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T1F4D45B35A6808036C0B74631C6F64BAAF9B5BC21631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1508 973895c3 - 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 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe Destination IP 2 223.5.5.5 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe Destination IP 8 114.114.114.114 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe Destination IP 9 223.5.5.5 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 973895c3 File created C:\Windows\SysWOW64\973895c3 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 973895c3 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 973895c3 -
resource yara_rule behavioral2/memory/2036-0-0x0000000000200000-0x000000000028C000-memory.dmp upx behavioral2/memory/1508-3-0x0000000000D90000-0x0000000000E1C000-memory.dmp upx behavioral2/files/0x001d00000002b289-2.dat upx behavioral2/memory/2036-10-0x0000000000200000-0x000000000028C000-memory.dmp upx behavioral2/memory/1508-11-0x0000000000D90000-0x0000000000E1C000-memory.dmp upx behavioral2/memory/1508-23-0x0000000000D90000-0x0000000000E1C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\19d148 973895c3 File opened for modification C:\Windows\22db68 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.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 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 973895c3 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 973895c3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 973895c3 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 973895c3 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 973895c3 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 973895c3 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 973895c3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 973895c3 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 973895c3 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 973895c3 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1508 973895c3 1508 973895c3 1508 973895c3 1508 973895c3 1508 973895c3 1508 973895c3 1508 973895c3 1508 973895c3 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe Token: SeTcbPrivilege 2036 25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe Token: SeDebugPrivilege 1508 973895c3 Token: SeTcbPrivilege 1508 973895c3
Processes
-
C:\Users\Admin\AppData\Local\Temp\25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.exe"C:\Users\Admin\AppData\Local\Temp\25e536765eb1b81bf9f37544fc917e9c81e73d71d6478d2fe383f3c3e88e2c8d.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:2036
-
C:\Windows\Syswow64\973895c3C:\Windows\Syswow64\973895c31⤵
- 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:1508
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\973895c3
- Size 640KB
- SHA256 81ac7827fd8cb0b501fc5d234f365d0f0d0bff3a29ce70bc00978f4beb7fa08b
- MD5 b5772a5ef9e7d99af2b4bca3e7cdaa8e
- SHA1 f472d4527398bfb00479e111c80a95f295ebd0ad
- SHA512 ac72335243f23414c8f6ffbe37ed30bc7575e90bd2ee22a00268de621f225aaa9eb54e75b2902e085161c93f195a6fcc0b09d2a2fe04ec251f11e481d55d8aab
- SSDEEP 6144:3cTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRuy8KU5Rc:3SvO2x9mONvKRwLSFtsOkxHya5+
- TLSH T131D45B35A6808036C0B74631C6F64BAAF9B5BC21631195CFA384376A1F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH