Analysis
- max time kernel
149s - max time network
150s - 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, 19:53
Behavioral task
behavioral1
Sample
90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe
- Size 1.4MB
- Sample260415-yl4v2aby2v
- SHA256 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377
- MD5 2baabddb072f4475d13f9b85039e5fb9
- SHA1 ba84352f31e3b84ab7a07716eeb6ee0229592c17
- SHA512 07c51eb9cd19f0aba96fa12269df60266e5bd42a1141a499ff51f842b180d8cef056445a7f7eb6b93c7bed2078ff156492faf224d07d894c0e6b3e5d07da5d35
- SSDEEP 24576:ejHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:eTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T12E658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 384 c3b456b0 - 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 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe Destination IP 2 223.5.5.5 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe Destination IP 8 114.114.114.114 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe Destination IP 9 223.5.5.5 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\c3b456b0 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C c3b456b0 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 c3b456b0 -
resource yara_rule behavioral2/memory/4688-0-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/files/0x002a00000002b13f-2.dat upx behavioral2/memory/384-4-0x0000000000330000-0x00000000003B9000-memory.dmp upx behavioral2/memory/4688-10-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/384-12-0x0000000000330000-0x00000000003B9000-memory.dmp upx behavioral2/memory/4688-27-0x0000000000B50000-0x0000000000BD9000-memory.dmp upx behavioral2/memory/384-28-0x0000000000330000-0x00000000003B9000-memory.dmp upx behavioral2/memory/384-42-0x0000000000330000-0x00000000003B9000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\69300 c3b456b0 File opened for modification C:\Windows\5042a0 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.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 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c3b456b0 - 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:" c3b456b0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ c3b456b0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" c3b456b0 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing c3b456b0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" c3b456b0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" c3b456b0 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" c3b456b0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix c3b456b0 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" c3b456b0 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 384 c3b456b0 384 c3b456b0 384 c3b456b0 384 c3b456b0 384 c3b456b0 384 c3b456b0 384 c3b456b0 384 c3b456b0 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe Token: SeTcbPrivilege 4688 90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe Token: SeDebugPrivilege 384 c3b456b0 Token: SeTcbPrivilege 384 c3b456b0
Processes
-
C:\Users\Admin\AppData\Local\Temp\90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.exe"C:\Users\Admin\AppData\Local\Temp\90f11e5c1b14f1c0487e25dc5177b9f79eddb46cef5b1a12d0c6772710455377.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:4688
-
C:\Windows\Syswow64\c3b456b0C:\Windows\Syswow64\c3b456b01⤵
- 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:384
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\c3b456b0
- Size 1.4MB
- SHA256 3a8aaf187f6e8cee49c09b3ca80220cbae1d98f65d38ad409ec8fccd94dde957
- MD5 5e82344e945851012b10c0b893635382
- SHA1 9cfd364f9b14aed93f1b91ffa83b14b9bff36919
- SHA512 344c2681a3eb859e084e748216fdd16f48cbee07030dbd012f24a7fc3a3e5dec22cbe08766a5ff484e1b65567704eb6ed852ebc90de5fbea3c9aff7e164a544e
- SSDEEP 24576:ejHPOSOkx2LFscU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:eTGkQy56/OJdJCXDrsOFZMjHfUr
- TLSH T1CD658E31AAC14132E2B3867186FA56F6A5257C222711E5CF62C97B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH