Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/05/2026, 03:52
Behavioral task
behavioral1
Sample
c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe
Resource
win11-20260513-en
windows11-21h2-x64
10 signatures
150 seconds
General
- Target c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe
- Size 2.5MB
- Sample260529-ee3vlsct6n
- SHA256 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662
- MD5 84885188bd53d82b02444be9ff658b97
- SHA1 93721a6f7ef7535276796ab61d24cd137bdb0a11
- SHA512 def0500d6733ffd53e20837e2539bcc895117732e06803ef090d6ab4cd0001a5f90640f56769ddb73a5f9c1829397b85a740427ecb4042b1a839206b4d30667e
- SSDEEP 49152:VHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:VnKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T1C9C58E31E6818136D1B3467186FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4960 2cf9ac51 - 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 3 114.114.114.114 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Destination IP 4 223.5.5.5 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Destination IP 65 114.114.114.114 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Destination IP 66 223.5.5.5 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe - Drops file in System32 directory 11 IoCs
description ioc Process File created C:\Windows\SysWOW64\2cf9ac51 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 2cf9ac51 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 2cf9ac51 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 2cf9ac51 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 2cf9ac51 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 2cf9ac51 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 2cf9ac51 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 2cf9ac51 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 2cf9ac51 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 2cf9ac51 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 2cf9ac51 -
resource yara_rule behavioral1/memory/1532-0-0x00000000009D0000-0x0000000000A5C000-memory.dmp upx behavioral1/files/0x0005000000016917-2.dat upx behavioral1/memory/4960-4-0x0000000000330000-0x00000000003BC000-memory.dmp upx behavioral1/memory/1532-13-0x00000000009D0000-0x0000000000A5C000-memory.dmp upx behavioral1/memory/4960-14-0x0000000000330000-0x00000000003BC000-memory.dmp upx behavioral1/memory/4960-22-0x0000000000330000-0x00000000003BC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\54eac0 2cf9ac51 File opened for modification C:\Windows\1a3a78 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.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 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2cf9ac51 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 2cf9ac51 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 2cf9ac51 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 2cf9ac51 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 2cf9ac51 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 2cf9ac51 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 2cf9ac51 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 2cf9ac51 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 2cf9ac51 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 2cf9ac51 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4960 2cf9ac51 4960 2cf9ac51 4960 2cf9ac51 4960 2cf9ac51 4960 2cf9ac51 4960 2cf9ac51 4960 2cf9ac51 4960 2cf9ac51 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Token: SeTcbPrivilege 1532 c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe Token: SeDebugPrivilege 4960 2cf9ac51 Token: SeTcbPrivilege 4960 2cf9ac51
Processes
-
C:\Users\Admin\AppData\Local\Temp\c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.exe"C:\Users\Admin\AppData\Local\Temp\c81ae0b9ea7c846ed5c96086f4af8726241613a165df2995161c130c6b537662.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:1532
-
C:\Windows\Syswow64\2cf9ac51C:\Windows\Syswow64\2cf9ac511⤵
- 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:4960
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\2cf9ac51
- Size 2.5MB
- SHA256 f79ead2eb1c9e01eecc92c85d108be04a4278c40a9babc8033dc22adf2aafcf6
- MD5 d430af4640702408d78b02491bb026c7
- SHA1 6341f4e76556863c83b53ef3da2af506bf9663b0
- SHA512 61f3d1aa179c1f8727cc59d45b5fce998ea1febfecb86fd30d4e4507901d19a509cb5c58a0a7b61e6b7fb24ea98d6964b6f8eb92a7777443566497287511139d
- SSDEEP 49152:UHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtN:UnKGEkOhCXHHFZMjHfUKkVWsT
- TLSH T168C58E31E6818136D1B34671C6FA57BBA5247C211721A5CFA3C87A2A1F736D3AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH