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
01/06/2026, 21:39
Behavioral task
behavioral1
Sample
4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe
- Size 768KB
- Sample260601-1hxzesfy21
- SHA256 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821
- MD5 92011431bbe973989d30dbf1a6251703
- SHA1 d7eb67df99d7e09a507e0c9fa478b35062e5b502
- SHA512 028fd911063d306ca171feb8f7d0816c7b4bd5235469306ef49b9a15248c6579596b08d6d628758c022a5f14768f15c49babfdac0f150cc71832a8f071185903
- SSDEEP 12288:NqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEuZ9oawhtyybA:NjHPOSOkx2LFscUQPxuZ98c
- TLSH T170F48D31E201C03AD4A74572C6BE0BBFA5687D25432561C7A3D87D6A2FB71D2AA3170F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4836 8c51bf48 - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 9 223.5.5.5 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe Destination IP 51 114.114.114.114 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe Destination IP 52 223.5.5.5 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe Destination IP 1 114.114.114.114 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe Destination IP 2 223.5.5.5 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe Destination IP 8 114.114.114.114 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe - Drops file in System32 directory 13 IoCs
description ioc Process File created C:\Windows\SysWOW64\8c51bf48 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 8c51bf48 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 8c51bf48 -
resource yara_rule behavioral2/memory/1544-0-0x0000000000CD0000-0x0000000000D59000-memory.dmp upx behavioral2/files/0x00190000000256cc-2.dat upx behavioral2/memory/4836-3-0x00000000003D0000-0x0000000000459000-memory.dmp upx behavioral2/memory/1544-10-0x0000000000CD0000-0x0000000000D59000-memory.dmp upx behavioral2/memory/4836-12-0x00000000003D0000-0x0000000000459000-memory.dmp upx behavioral2/memory/1544-29-0x0000000000CD0000-0x0000000000D59000-memory.dmp upx behavioral2/memory/4836-30-0x00000000003D0000-0x0000000000459000-memory.dmp upx behavioral2/memory/1544-36-0x0000000000CD0000-0x0000000000D59000-memory.dmp upx behavioral2/memory/1544-48-0x0000000000CD0000-0x0000000000D59000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\52cb48 8c51bf48 File opened for modification C:\Windows\1a6f10 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.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 8c51bf48 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe - 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" 8c51bf48 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 8c51bf48 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 8c51bf48 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 8c51bf48 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 8c51bf48 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 8c51bf48 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 8c51bf48 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 8c51bf48 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 8c51bf48 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4836 8c51bf48 4836 8c51bf48 4836 8c51bf48 4836 8c51bf48 4836 8c51bf48 4836 8c51bf48 4836 8c51bf48 4836 8c51bf48 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe Token: SeTcbPrivilege 1544 4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe Token: SeDebugPrivilege 4836 8c51bf48 Token: SeTcbPrivilege 4836 8c51bf48
Processes
-
C:\Users\Admin\AppData\Local\Temp\4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.exe"C:\Users\Admin\AppData\Local\Temp\4bd4029a290e22196e723f27189e40cfbed308095faf3478a93fd5817d243821.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:1544
-
C:\Windows\Syswow64\8c51bf48C:\Windows\Syswow64\8c51bf481⤵
- 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:4836
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\8c51bf48
- Size 768KB
- SHA256 59984217e75249ae710e04d8785339c55c7b4ba793e045537f806dfe147db92a
- MD5 8c2734cf4d6cc4dd8b8fe406b366fb31
- SHA1 325e8fba0c4a679bc4cdad8a2cfac742bddfcefe
- SHA512 4448c41fdc567ea47cb882cc90c53343ef7b379840a1bf43300c1d32df6b1beab255a10f47f12fbbe152c63ebb1b0e76cb933c7ce6b8146fb0c1da30fad9f4f7
- SSDEEP 12288:fqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEuZ9oawhtyybA:fjHPOSOkx2LFscUQPxuZ98c
- TLSH T145F48D31E201C03AD4A74572C6BE0BBFA5687D25432561C7A3D87D6A2FB71D2AA3170F
- MD5 SHA1 SHA512 SSDEEP TLSH