Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
21/04/2026, 10:38
Behavioral task
behavioral1
Sample
c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe
- Size 560KB
- Sample260421-mpff3af17t
- SHA256 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e
- MD5 bdc19cb4270dbc659593cdd280ff6bf7
- SHA1 cc1c4990e00703c919e343495866c37d0d25edbe
- SHA512 4ccedb75eb0e4e33b74a95cd21d746d8705d151e46168702b1ffff5bde69de42a8bd15c18366eed70fb363393447b3f5ad1e99ccb4a9212363f2fbfcabffedb9
- SSDEEP 12288:a3Sgbu4VOGWPSqt6IpouYgCEmx1z725uRG9OArjlI6YeLm08XsOkx2LIa+y:6VOL4/gPXKCOkx2LFR
- TLSH T196C46D2AB6E0D076C4B79574C4A256A6FFB1B43127204ACF6390475A1F637E2BE3530E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2200 9dac8343 - 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 11 114.114.114.114 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe Destination IP 12 223.5.5.5 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe Destination IP 1 114.114.114.114 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe Destination IP 2 223.5.5.5 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 9dac8343 File created C:\Windows\SysWOW64\9dac8343 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 9dac8343 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 9dac8343 -
resource yara_rule behavioral2/memory/2272-0-0x0000000000510000-0x000000000059C000-memory.dmp upx behavioral2/files/0x001e00000002b263-2.dat upx behavioral2/memory/2200-4-0x00000000002D0000-0x000000000035C000-memory.dmp upx behavioral2/memory/2272-10-0x0000000000510000-0x000000000059C000-memory.dmp upx behavioral2/memory/2200-11-0x00000000002D0000-0x000000000035C000-memory.dmp upx behavioral2/memory/2200-28-0x00000000002D0000-0x000000000035C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\25aa30 9dac8343 File opened for modification C:\Windows\26e5c0 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.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 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 9dac8343 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 9dac8343 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 9dac8343 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 9dac8343 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 9dac8343 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 9dac8343 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 9dac8343 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 9dac8343 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 9dac8343 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 9dac8343 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2200 9dac8343 2200 9dac8343 2200 9dac8343 2200 9dac8343 2200 9dac8343 2200 9dac8343 2200 9dac8343 2200 9dac8343 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe Token: SeTcbPrivilege 2272 c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe Token: SeDebugPrivilege 2200 9dac8343 Token: SeTcbPrivilege 2200 9dac8343
Processes
-
C:\Users\Admin\AppData\Local\Temp\c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.exe"C:\Users\Admin\AppData\Local\Temp\c18fcd5ffc7476f7bf1c27ebd2fb8010f6a1366f3782f31877164e8e1ed2a29e.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:2272
-
C:\Windows\Syswow64\9dac8343C:\Windows\Syswow64\9dac83431⤵
- 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:2200
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\9dac8343
- Size 560KB
- SHA256 5f943bcbd837b350a6488ff2bfe0e6d5a61be515cb9b61233b77b29a2247a4b0
- MD5 f7fa44fc6d902580a352545cff6c7556
- SHA1 dfe95219af638fa16bc0d61409712b92502a369f
- SHA512 0b65c1af5c8c33c1a8cf7fb85f9c89cbac75835f5607e2ae24de0cba079c7a6d3dd734bf73d39b4a86d3d6e4fc5ebfe771cec3d115a610b50473afda7015961f
- SSDEEP 12288:j3Sgbu4VOGWPSqt6IpouYgCEmx1z725uRG9OArjlI6YeLm08XsOkx2LIa+y:hVOL4/gPXKCOkx2LFR
- TLSH T106C46D2AB6E0D076C4B79574C4A256A6FFB1B43127204ACF6390475A1F637E2BE3530E
- MD5 SHA1 SHA512 SSDEEP TLSH