Analysis
- max time kernel
148s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/09/2026, 02:00
Behavioral task
behavioral1
Sample
ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe
- Size 560KB
- Sample260905-ce81hsdk6s
- SHA256 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652
- MD5 bf3f463afacc768a1e994ee7dbe68ab6
- SHA1 44ea77fb324e8780ff853f771c78826031de9d23
- SHA512 f73a4043f66211dbb0586c394cd9de90a858d43efb8798ab6523815d80b87ec9330483f0a46fe1e08143585b63641bb6afcbf02dcdfe82bcf5e24c55b566e9dc
- SSDEEP 12288:IftONCx61vvGEYQFNEhyQU/lLi2IsOkxHy:atONCTU/lmaOkxS
- TLSH T168C48E29B6D0C076C4B79574C4A186BAFAB17432372089CFA39407571F637D2BA3974E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5116 b4e17fa8 - 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 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe Destination IP 3 223.5.5.5 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe Destination IP 21 114.114.114.114 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe Destination IP 22 223.5.5.5 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b4e17fa8 File created C:\Windows\SysWOW64\b4e17fa8 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b4e17fa8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C b4e17fa8 -
resource yara_rule behavioral2/memory/4176-0-0x0000000000730000-0x00000000007BC000-memory.dmp upx behavioral2/files/0x00090000000068e3-2.dat upx behavioral2/memory/5116-3-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx behavioral2/memory/4176-15-0x0000000000730000-0x00000000007BC000-memory.dmp upx behavioral2/memory/5116-16-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx behavioral2/memory/5116-34-0x0000000000F70000-0x0000000000FFC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\579678 b4e17fa8 File opened for modification C:\Windows\477ea0 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.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 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4e17fa8 - 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 b4e17fa8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b4e17fa8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b4e17fa8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b4e17fa8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b4e17fa8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b4e17fa8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" b4e17fa8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b4e17fa8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b4e17fa8 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 5116 b4e17fa8 5116 b4e17fa8 5116 b4e17fa8 5116 b4e17fa8 5116 b4e17fa8 5116 b4e17fa8 5116 b4e17fa8 5116 b4e17fa8 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe Token: SeTcbPrivilege 4176 ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe Token: SeDebugPrivilege 5116 b4e17fa8 Token: SeTcbPrivilege 5116 b4e17fa8
Processes
-
C:\Users\Admin\AppData\Local\Temp\ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.exe"C:\Users\Admin\AppData\Local\Temp\ab19abb58d04a378596b5660ff6963f79d4f7a3990773b495d3359f713588652.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:4176
-
C:\Windows\Syswow64\b4e17fa8C:\Windows\Syswow64\b4e17fa81⤵
- 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:5116
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b4e17fa8
- Size 560KB
- SHA256 7a8f4c22a5893c3d37b5580a2736d370c539cae3452db9587b5e79b617eca1c4
- MD5 6818349115fbcd93e63371da249dcb00
- SHA1 e6a25d9d01127304a9d05b3887c47f97f86648f5
- SHA512 c3d119888d2511edbe8fc5450ce403500461c7696e31be6e0cd0aef4f6eb6a061035971ab1855e34924f2a8a10fdde715a41ee9698147dabce2879ee4eed229e
- SSDEEP 12288:6ftONCx61vvGEYQFNEhyQU/lLi2IsOkxHy:UtONCTU/lmaOkxS
- TLSH T160C48E29B6E0C076C4B79574C4A186BAFAB17432372089CFA39407571F637D2BA3974E
- MD5 SHA1 SHA512 SSDEEP TLSH