Analysis
- max time kernel
150s - max time network
160s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/05/2026, 14:28
Behavioral task
behavioral1
Sample
373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe
Resource
win10v2004-20260130-en
9 signatures
150 seconds
General
- Target 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe
- Size 1024KB
- Sample260504-rtbe5adw81
- SHA256 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5
- MD5 d7afa24da36c308165ac4f8c145ba6c9
- SHA1 9933da8d26c3480232ced2ceeb1884228ef16b69
- SHA512 6437ee18d987eca1dd3bf3a5042d1afde5e3b0d9e1f117da69ee24b3363456dc8292cf5b53f2dcd3ffe70b07cd97da83722fea36ba7b83cc2cc87be27ebbcd0e
- SSDEEP 24576:4jHPOSOkx2LFscUQPxuZ98Es8k3OH3C0rQ6+y:4TGkQy5QZuTtS0rQi
- TLSH T1CA259E31E242C03AD5A70172C6BE4BAF95687D25432961C7A3D43D762FB62D2AA3170F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4152 ecc97d1c - 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 102 223.5.5.5 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe Destination IP 3 114.114.114.114 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe Destination IP 4 223.5.5.5 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe Destination IP 41 114.114.114.114 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe Destination IP 42 223.5.5.5 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe Destination IP 101 114.114.114.114 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.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\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ecc97d1c File created C:\Windows\SysWOW64\ecc97d1c 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies ecc97d1c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft ecc97d1c -
resource yara_rule behavioral1/memory/5372-0-0x0000000000BB0000-0x0000000000C39000-memory.dmp upx behavioral1/files/0x0007000000023113-2.dat upx behavioral1/memory/4152-4-0x0000000000AF0000-0x0000000000B79000-memory.dmp upx behavioral1/memory/5372-10-0x0000000000BB0000-0x0000000000C39000-memory.dmp upx behavioral1/memory/4152-12-0x0000000000AF0000-0x0000000000B79000-memory.dmp upx behavioral1/memory/5372-39-0x0000000000BB0000-0x0000000000C39000-memory.dmp upx behavioral1/memory/4152-42-0x0000000000AF0000-0x0000000000B79000-memory.dmp upx behavioral1/memory/5372-63-0x0000000000BB0000-0x0000000000C39000-memory.dmp upx behavioral1/memory/5372-66-0x0000000000BB0000-0x0000000000C39000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\5bf878 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe File opened for modification C:\Windows\471570 ecc97d1c - 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 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ecc97d1c - 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:" ecc97d1c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" ecc97d1c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" ecc97d1c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix ecc97d1c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" ecc97d1c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ ecc97d1c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" ecc97d1c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" ecc97d1c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing ecc97d1c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4152 ecc97d1c 4152 ecc97d1c 4152 ecc97d1c 4152 ecc97d1c 4152 ecc97d1c 4152 ecc97d1c 4152 ecc97d1c 4152 ecc97d1c 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe Token: SeTcbPrivilege 5372 373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe Token: SeDebugPrivilege 4152 ecc97d1c Token: SeTcbPrivilege 4152 ecc97d1c
Processes
-
C:\Users\Admin\AppData\Local\Temp\373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.exe"C:\Users\Admin\AppData\Local\Temp\373ffaee5dff4b1a1f08ec95447c8e969ebef8619275449dafff2af74b1127c5.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:5372
-
C:\Windows\Syswow64\ecc97d1cC:\Windows\Syswow64\ecc97d1c1⤵
- 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:4152
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\ecc97d1c
- Size 1024KB
- SHA256 713ebedb576c7d9af8c5f79d5f467324cb1fc879dc5d9469c80abfb939d918c3
- MD5 065d89dd9c95afaeb41a18d210779089
- SHA1 6fdd7d8f383cabc580cc3a5f270c085cc8de68f5
- SHA512 3b8f26339522e975aca26b8337af85ef47555c91c8b476dbf94709b507e0d2446a2458438e05301bd418d241fbe296b53172c86de50b4b557f1179095d590b1f
- SSDEEP 24576:wjHPOSOkx2LFscUQPxuZ98Es8k3OH3C0rQ6+y:wTGkQy5QZuTtS0rQi
- TLSH T1E0259E31E242C03AD5A70172C6BE4BBF95687D25432961C7A3D43D762FB62D2AA3170F
- MD5 SHA1 SHA512 SSDEEP TLSH