Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
30/05/2026, 21:52
Behavioral task
behavioral1
Sample
531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe
- Size 638KB
- Sample260530-1rd8nsdz21
- SHA256 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba
- MD5 4a644dc017bd00f00447c2eee21b777c
- SHA1 28f00003b79f64641eadf6350163ee4154f88a24
- SHA512 e694bb5329cf7383ed753524f40965818d3946f12f31e516854a7da70cf2d9657dc2aa1e32f52c9e5391219c5c6f7f16e456ae3767690b91d256d462aaa285c3
- SSDEEP 6144:EcTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:ESvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T137D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 976 bb79e6ee - 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 17 114.114.114.114 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe Destination IP 18 223.5.5.5 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe Destination IP 1 114.114.114.114 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe Destination IP 2 223.5.5.5 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 bb79e6ee File created C:\Windows\SysWOW64\bb79e6ee 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache bb79e6ee File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 bb79e6ee -
resource yara_rule behavioral2/memory/4444-0-0x0000000000040000-0x00000000000CC000-memory.dmp upx behavioral2/files/0x001700000002601f-3.dat upx behavioral2/memory/976-4-0x0000000000DB0000-0x0000000000E3C000-memory.dmp upx behavioral2/memory/4444-10-0x0000000000040000-0x00000000000CC000-memory.dmp upx behavioral2/memory/976-11-0x0000000000DB0000-0x0000000000E3C000-memory.dmp upx behavioral2/memory/976-24-0x0000000000DB0000-0x0000000000E3C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\10b5a0 bb79e6ee File opened for modification C:\Windows\4c1538 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.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 bb79e6ee Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.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 bb79e6ee Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" bb79e6ee Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" bb79e6ee Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ bb79e6ee Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" bb79e6ee Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" bb79e6ee Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" bb79e6ee Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing bb79e6ee Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" bb79e6ee - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 976 bb79e6ee 976 bb79e6ee 976 bb79e6ee 976 bb79e6ee 976 bb79e6ee 976 bb79e6ee 976 bb79e6ee 976 bb79e6ee 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe Token: SeTcbPrivilege 4444 531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe Token: SeDebugPrivilege 976 bb79e6ee Token: SeTcbPrivilege 976 bb79e6ee
Processes
-
C:\Users\Admin\AppData\Local\Temp\531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.exe"C:\Users\Admin\AppData\Local\Temp\531e11bdb3961cac89a642873eebd623a135a2ec6dff803719cee7b4ffbcd9ba.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:4444
-
C:\Windows\Syswow64\bb79e6eeC:\Windows\Syswow64\bb79e6ee1⤵
- 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:976
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\bb79e6ee
- Size 638KB
- SHA256 0d6732e79c419429593fd1f643b2bef2996866e6b6d2ad2f42b9a3fb4811daa2
- MD5 c2e7f8652f99651ef081c9677eef6b09
- SHA1 88366da72ef8978dbe24952e4d7c1e3946fa953f
- SHA512 d60bac95440a67f6fbda15fefb2db303b5bc5f5d11c9788b36280e048f799851f00432a4501aac2266317637eef0e6318466d91e0ed10bff65e6903eb7f13776
- SSDEEP 6144:scTgav1cdCTuoPbgwmOLJvKRwLSFXdFwirGcEOkCybEaQRXr9HNdvOa+y8KU5R2:sSvO2x9mONvKRwLSFtsOkx2LIa+ya5g
- TLSH T198D46B26B6908037C0B74675C5B64BAAFAB5BC21631186CFA380761A1F737D2BE3570D
- MD5 SHA1 SHA512 SSDEEP TLSH