Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
29/05/2026, 03:58
Behavioral task
behavioral1
Sample
a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe
- Size 1.2MB
- Sample260529-ejptjscv4r
- SHA256 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311
- MD5 06aa0d7d18b1f20d54adb1a3729045d4
- SHA1 60b629a58c062c472bb120f225e00bd5b0da3945
- SHA512 ec5c2d8799efb19d26302f8ec2187bdd0eb6210ffacd7114a9db61c4e084cfbbe841b895375fa0a6fce110388be2127bea61a02a3b8aa45382f7f7d47500c416
- SSDEEP 24576:XvO2xJKRw2kOkx2LFRvcUQPxuZ98Es8k3OH3C0rQS:XHHKe2WQX5QZuTtS0rQS
- TLSH T106458C31E641C036D4A70175C6BA4BBFA9787D25032565C7E3D43E6A2FB22D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3984 b4654158 - 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 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe Destination IP 2 223.5.5.5 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe Destination IP 27 114.114.114.114 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe Destination IP 28 223.5.5.5 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b4654158 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b4654158 File created C:\Windows\SysWOW64\b4654158 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe -
resource yara_rule behavioral2/memory/3628-0-0x0000000000E60000-0x0000000000EEC000-memory.dmp upx behavioral2/files/0x002b00000002b224-2.dat upx behavioral2/memory/3984-4-0x0000000000C50000-0x0000000000CDC000-memory.dmp upx behavioral2/memory/3628-18-0x0000000000E60000-0x0000000000EEC000-memory.dmp upx behavioral2/memory/3984-19-0x0000000000C50000-0x0000000000CDC000-memory.dmp upx behavioral2/memory/3984-24-0x0000000000C50000-0x0000000000CDC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\443520 b4654158 File opened for modification C:\Windows\3e1cd8 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.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 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4654158 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b4654158 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b4654158 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b4654158 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b4654158 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b4654158 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b4654158 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b4654158 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b4654158 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b4654158 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3984 b4654158 3984 b4654158 3984 b4654158 3984 b4654158 3984 b4654158 3984 b4654158 3984 b4654158 3984 b4654158 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe Token: SeTcbPrivilege 3628 a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe Token: SeDebugPrivilege 3984 b4654158 Token: SeTcbPrivilege 3984 b4654158
Processes
-
C:\Users\Admin\AppData\Local\Temp\a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.exe"C:\Users\Admin\AppData\Local\Temp\a744a810846a0942bb0f1502c6bcf8bb4a9acdeede038489f1c72dc6f2a42311.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:3628
-
C:\Windows\Syswow64\b4654158C:\Windows\Syswow64\b46541581⤵
- 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:3984
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b4654158
- Size 1.2MB
- SHA256 5036f3aa42d728487be66c334bd01fe64ff48b02814a9ca4ffd1c260c48c769d
- MD5 5c0550542ffa8a92c14dde1d8203169a
- SHA1 5b241ae1c9205049f3e70da8e9716f6afbc918cc
- SHA512 4b6ee0a3a4c5745e19b464d03bd5d3eae99585219b61b0164916b6356edcc6879f7aad7d9d1cb6e91575a3b6df61dd86e7e55d3c440f44f7a0f477557287b27c
- SSDEEP 24576:yvO2xJKRw2kOkx2LFRvcUQPxuZ98Es8k3OH3C0rQS:yHHKe2WQX5QZuTtS0rQS
- TLSH T11A458C31E641C036D4A70175C6BA4BBFA9787D25032565C7E3D43E6A2FB22D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH