Analysis
- max time kernel
150s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
19/04/2026, 20:04
Behavioral task
behavioral1
Sample
8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe
Resource
win10v2004-20260130-en
9 signatures
150 seconds
General
- Target 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe
- Size 271KB
- Sample260419-ys91maev8x
- SHA256 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078
- MD5 4addf0ffb1f3adc71776e4ddef942633
- SHA1 e93f44a6eba2967982e7a3b2bf4d6c5ec8fb096e
- SHA512 dec881880e2c2d82b1f9702d7de373e6d50b60cd60d0528401d4b7df507171ff644ffc7bd731551751c168c8b67feda9c30049f17b4d1d6dc8c25487fa0eb652
- SSDEEP 6144:rl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOa:tqXUHkUXe39sOkx2LIa
- TLSH T1ED44CF5BF27440B6C49AD678C9935A5AFBF1B815872143CF1320C25A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4820 3ed7d3d7 - 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 2 223.5.5.5 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe Destination IP 15 114.114.114.114 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe Destination IP 16 223.5.5.5 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe Destination IP 1 114.114.114.114 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3ed7d3d7 File created C:\Windows\SysWOW64\3ed7d3d7 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3ed7d3d7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3ed7d3d7 -
resource yara_rule behavioral2/memory/4816-0-0x0000000000790000-0x0000000000819000-memory.dmp upx behavioral2/files/0x002500000002b183-2.dat upx behavioral2/memory/4820-3-0x00000000009B0000-0x0000000000A39000-memory.dmp upx behavioral2/memory/4816-10-0x0000000000790000-0x0000000000819000-memory.dmp upx behavioral2/memory/4820-15-0x00000000009B0000-0x0000000000A39000-memory.dmp upx behavioral2/memory/4816-39-0x0000000000790000-0x0000000000819000-memory.dmp upx behavioral2/memory/4820-41-0x00000000009B0000-0x0000000000A39000-memory.dmp upx behavioral2/memory/4816-62-0x0000000000790000-0x0000000000819000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\528528 3ed7d3d7 File opened for modification C:\Windows\5273a0 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.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 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3ed7d3d7 - 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 3ed7d3d7 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3ed7d3d7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3ed7d3d7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3ed7d3d7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3ed7d3d7 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3ed7d3d7 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 3ed7d3d7 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3ed7d3d7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3ed7d3d7 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4820 3ed7d3d7 4820 3ed7d3d7 4820 3ed7d3d7 4820 3ed7d3d7 4820 3ed7d3d7 4820 3ed7d3d7 4820 3ed7d3d7 4820 3ed7d3d7 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe Token: SeTcbPrivilege 4816 8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe Token: SeDebugPrivilege 4820 3ed7d3d7 Token: SeTcbPrivilege 4820 3ed7d3d7
Processes
-
C:\Users\Admin\AppData\Local\Temp\8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.exe"C:\Users\Admin\AppData\Local\Temp\8957c85a37ddcc119ccd3b41ca06a9fce60d498b367dfc29d59a54764cde1078.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:4816
-
C:\Windows\Syswow64\3ed7d3d7C:\Windows\Syswow64\3ed7d3d71⤵
- 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:4820
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3ed7d3d7
- Size 271KB
- SHA256 7d46a986caf5a954f184ae68b088e2f892a3b524c7942833345f63f1b23d2b88
- MD5 d3602b7accd1ceb2eef313e4c4015f84
- SHA1 39caf3d159e486e5301e979862cbbf5ab4436033
- SHA512 40accc856e1856e4fdaf857ab90d37cc3e9f976a39fb7bab150e69746f547908a3bb8492318f3267d454a18ad31ff687311e9a93d402586c5715faece0736a75
- SSDEEP 6144:Sl51orRJXlDixHkUXe35rGcEOkCybEaQRXr9HNdvOa:qqXUHkUXe39sOkx2LIa
- TLSH T12144CF5BF27440B6C49AD678C9935A5AFBF1B815872143CF1320C25A1F737E2AE3A325
- MD5 SHA1 SHA512 SSDEEP TLSH