Analysis
- max time kernel
149s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 01:04
Behavioral task
behavioral1
Sample
3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe
- Size 832KB
- Sample260802-be85vabj4x
- SHA256 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311
- MD5 af876617fc4ce815335af47eaf297f65
- SHA1 da38ea6c4c6277dda81e8deab93179809c51a425
- SHA512 6bd02f6f35be3dfaeb3de4da375d3d6c3d1d85484b6ffc6ab9d0a2dfb4ac162ad5f9ff9a07294d81a553150ef3446e32092799ac4811f4945bb4762a304bec17
- SSDEEP 12288:JqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEuZ9oawhtyybAsLAkQ:JjHPOSOkx2LFscUQPxuZ98Es8kQ
- TLSH T100059D21E202C13AD49701B2C6BE0BAFA5687D15432561C7E3D87D6A2FB61D2BE3171F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3564 f8c5b9fd - 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 10 223.5.5.5 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe Destination IP 1 114.114.114.114 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe Destination IP 2 223.5.5.5 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe Destination IP 9 114.114.114.114 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.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 f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f8c5b9fd File created C:\Windows\SysWOW64\f8c5b9fd 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 f8c5b9fd File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache f8c5b9fd -
resource yara_rule behavioral2/memory/5832-0-0x00000000003E0000-0x0000000000469000-memory.dmp upx behavioral2/files/0x000c00000001b85a-2.dat upx behavioral2/memory/3564-3-0x0000000000330000-0x00000000003B9000-memory.dmp upx behavioral2/memory/5832-10-0x00000000003E0000-0x0000000000469000-memory.dmp upx behavioral2/memory/3564-12-0x0000000000330000-0x00000000003B9000-memory.dmp upx behavioral2/memory/5832-30-0x00000000003E0000-0x0000000000469000-memory.dmp upx behavioral2/memory/3564-31-0x0000000000330000-0x00000000003B9000-memory.dmp upx behavioral2/memory/5832-51-0x00000000003E0000-0x0000000000469000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3d0458 f8c5b9fd File opened for modification C:\Windows\63d890 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.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 f8c5b9fd Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe - 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 f8c5b9fd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" f8c5b9fd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" f8c5b9fd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" f8c5b9fd Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing f8c5b9fd Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" f8c5b9fd Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ f8c5b9fd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" f8c5b9fd Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" f8c5b9fd - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 3564 f8c5b9fd 3564 f8c5b9fd 3564 f8c5b9fd 3564 f8c5b9fd 3564 f8c5b9fd 3564 f8c5b9fd 3564 f8c5b9fd 3564 f8c5b9fd 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe Token: SeTcbPrivilege 5832 3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe Token: SeDebugPrivilege 3564 f8c5b9fd Token: SeTcbPrivilege 3564 f8c5b9fd
Processes
-
C:\Users\Admin\AppData\Local\Temp\3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.exe"C:\Users\Admin\AppData\Local\Temp\3917ea4aad6fc277f924115739de1c17e04bc64fa222630ca0c1652ee9bce311.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:5832
-
C:\Windows\Syswow64\f8c5b9fdC:\Windows\Syswow64\f8c5b9fd1⤵
- 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:3564
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\f8c5b9fd
- Size 832KB
- SHA256 43aa23fb8b2c22456276d2c2edc488d6879f8afbc9aabe4bc255b708a8f0eaf2
- MD5 821b1f63fe31c923ed6b9fa0e5e248af
- SHA1 0d3c7050d958f8b191b59e5bc60191692c54d3d0
- SHA512 ea109a191f3686fdf8dc7abf6be7be45b1afe967db562d05ae0ecc6f07b7a7672e58cd9dc9540be4b6ae80186df14fe9593a4307084f26154a471c34f75ff24d
- SSDEEP 12288:fqXUHkUXe39sOkx2LIan5FAQjU/Lik8CQ3uEuZ9oawhtyybAsLAkQ:fjHPOSOkx2LFscUQPxuZ98Es8kQ
- TLSH T145059D21E202C13AD49701B2C6BE0BAFA5687D15432561C7E3D87D6A2FB61D2BE3171F
- MD5 SHA1 SHA512 SSDEEP TLSH