Analysis
- max time kernel
149s - max time network
154s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
15/04/2026, 04:32
Behavioral task
behavioral1
Sample
e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe
- Size 2.9MB
- Sample260415-e53yasex9l
- SHA256 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5
- MD5 916ccfff893a8d9157c2a9ecbd9fb79e
- SHA1 0c301fc513c9a38d7191598e43962040fed5e577
- SHA512 cc5bb62ff3045a4161cd1f9574bd0a1cc074900dbff5947dbd78e5e08990c36b3261f9c0c66bb2e5e7604fde351d1e918160d5e27e9528cf7c572439e3b0f517
- SSDEEP 49152:8HHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:8nKGEkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T127D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4836 f845cd45 - 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 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe Destination IP 9 114.114.114.114 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe Destination IP 12 223.5.5.5 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe Destination IP 1 114.114.114.114 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\f845cd45 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 f845cd45 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 f845cd45 -
resource yara_rule behavioral2/memory/2892-0-0x0000000000710000-0x000000000079C000-memory.dmp upx behavioral2/files/0x000c000000029ee3-2.dat upx behavioral2/memory/4836-3-0x0000000000670000-0x00000000006FC000-memory.dmp upx behavioral2/memory/2892-12-0x0000000000710000-0x000000000079C000-memory.dmp upx behavioral2/memory/4836-15-0x0000000000670000-0x00000000006FC000-memory.dmp upx behavioral2/memory/4836-36-0x0000000000670000-0x00000000006FC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\52cb48 f845cd45 File opened for modification C:\Windows\318318 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.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 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f845cd45 - 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 f845cd45 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" f845cd45 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" f845cd45 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ f845cd45 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" f845cd45 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" f845cd45 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" f845cd45 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing f845cd45 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" f845cd45 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4836 f845cd45 4836 f845cd45 4836 f845cd45 4836 f845cd45 4836 f845cd45 4836 f845cd45 4836 f845cd45 4836 f845cd45 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe Token: SeTcbPrivilege 2892 e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe Token: SeDebugPrivilege 4836 f845cd45 Token: SeTcbPrivilege 4836 f845cd45
Processes
-
C:\Users\Admin\AppData\Local\Temp\e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.exe"C:\Users\Admin\AppData\Local\Temp\e4ac378a2b7b2c55bf75f0d315c1ec37e2557e876da0a656cd0fbce8a7d460d5.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:2892
-
C:\Windows\Syswow64\f845cd45C:\Windows\Syswow64\f845cd451⤵
- 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\f845cd45
- Size 2.9MB
- SHA256 d6047bc0023ba5432c3c12fa3691226ec284d1182949d358c3415c7b01b83070
- MD5 de623a6a9dd760f46a07873f449d7593
- SHA1 8f4906279e413a57a59e671162cfd1e5b4a068c4
- SHA512 9e994e92d691736e5aa2fce70cc9e028bbd29c60989efc1b8942569e8c82778b1e903c9d252b1d2d2614e9e620ddaf1814f3b17dfb395ede1fde5792d5efe343
- SSDEEP 49152:aHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:anKGEkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T1A9D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH