Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/07/2026, 19:52
Behavioral task
behavioral1
Sample
ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe
- Size 1.4MB
- Sample260718-ylldpabt2q
- SHA256 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d
- MD5 03353d23f30fc12284b6a2e2d631690c
- SHA1 ff47d57d44615fa7e2b45c8160e63e5d97db97a2
- SHA512 083bb7aa7924e4107c15fca97866a84d6e2cb92a39c0580960180e6f88142ca8e4716f6110da0627be8d7b4abde1857ff61122ae574ffa30314ad8f5eeba8fc4
- SSDEEP 24576:MjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:MTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1A6658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2540 e5f9612a - 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 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe Destination IP 2 223.5.5.5 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe Destination IP 12 114.114.114.114 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe Destination IP 13 223.5.5.5 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.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\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e5f9612a File created C:\Windows\SysWOW64\e5f9612a ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content e5f9612a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e5f9612a -
resource yara_rule behavioral2/memory/3008-0-0x0000000000D40000-0x0000000000DC9000-memory.dmp upx behavioral2/files/0x00160000000115f1-2.dat upx behavioral2/memory/2540-3-0x0000000000660000-0x00000000006E9000-memory.dmp upx behavioral2/memory/3008-18-0x0000000000D40000-0x0000000000DC9000-memory.dmp upx behavioral2/memory/2540-20-0x0000000000660000-0x00000000006E9000-memory.dmp upx behavioral2/memory/3008-33-0x0000000000D40000-0x0000000000DC9000-memory.dmp upx behavioral2/memory/2540-34-0x0000000000660000-0x00000000006E9000-memory.dmp upx behavioral2/memory/2540-36-0x0000000000660000-0x00000000006E9000-memory.dmp upx behavioral2/memory/3008-47-0x0000000000D40000-0x0000000000DC9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\2b7c58 e5f9612a File opened for modification C:\Windows\337f80 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.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 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e5f9612a - 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\History\CachePrefix = "Visited:" e5f9612a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ e5f9612a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" e5f9612a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix e5f9612a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" e5f9612a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" e5f9612a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" e5f9612a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" e5f9612a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing e5f9612a - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 2540 e5f9612a 2540 e5f9612a 2540 e5f9612a 2540 e5f9612a 2540 e5f9612a 2540 e5f9612a 2540 e5f9612a 2540 e5f9612a 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe Token: SeTcbPrivilege 3008 ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe Token: SeDebugPrivilege 2540 e5f9612a Token: SeTcbPrivilege 2540 e5f9612a
Processes
-
C:\Users\Admin\AppData\Local\Temp\ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.exe"C:\Users\Admin\AppData\Local\Temp\ef81940cf2ed3568c73d6f35951e0b6904bd16b815be2464fefddedecd7ddd2d.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:3008
-
C:\Windows\Syswow64\e5f9612aC:\Windows\Syswow64\e5f9612a1⤵
- 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:2540
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\e5f9612a
- Size 1.4MB
- SHA256 176b99e6ead1dac2633258dd0168d9ceb61f05b4b129c4e1acb4cdd62d5c7624
- MD5 50c9866c29a37fbe708cd2fb3ef00b79
- SHA1 cacdf93e0feff0c13a63696df9e37ea3c75a3ad2
- SHA512 9623fc8f20e3e6e59dc85d66aecf96598d3645c9c6baeaa71870f6612d64cd39f030226bceb7920249fa4111bffd71c272a2bc6296b96d7c1cb31ed51efe241f
- SSDEEP 24576:jjHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:jTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T13B658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH