Analysis
- max time kernel
149s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
23/04/2026, 22:04
Behavioral task
behavioral1
Sample
a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe
- Size 761KB
- Sample260423-1zd8msgz5m
- SHA256 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f
- MD5 0fab4c6f91e699575c776c1d7b7a59f3
- SHA1 fcec9e99fbbb9d2678b46ab956ba947b0627e58e
- SHA512 a3fa247cd20ccb06fe1df15f99e20b003a2516e31a83203d83825a362435c922c8b9ab4c5c8b7d2ec9bceb6ebd0701140b5748f652c8e39b3b4a7b68310a7394
- SSDEEP 12288:RSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:4vO2xJKRw2kOkxSkW298B
- TLSH T102F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2556 90241ddc - 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 36 114.114.114.114 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe Destination IP 37 223.5.5.5 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe Destination IP 3 114.114.114.114 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe Destination IP 4 223.5.5.5 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 90241ddc File created C:\Windows\SysWOW64\90241ddc a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 90241ddc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 90241ddc -
resource yara_rule behavioral1/memory/3172-0-0x00000000003A0000-0x000000000042C000-memory.dmp upx behavioral1/files/0x00120000000242b7-2.dat upx behavioral1/memory/2556-3-0x0000000000750000-0x00000000007DC000-memory.dmp upx behavioral1/memory/3172-10-0x00000000003A0000-0x000000000042C000-memory.dmp upx behavioral1/memory/2556-11-0x0000000000750000-0x00000000007DC000-memory.dmp upx behavioral1/memory/2556-24-0x0000000000750000-0x00000000007DC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\364e48 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe File opened for modification C:\Windows\2bc278 90241ddc - 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 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 90241ddc - 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 90241ddc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 90241ddc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 90241ddc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 90241ddc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 90241ddc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 90241ddc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 90241ddc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 90241ddc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 90241ddc - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2556 90241ddc 2556 90241ddc 2556 90241ddc 2556 90241ddc 2556 90241ddc 2556 90241ddc 2556 90241ddc 2556 90241ddc 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe Token: SeTcbPrivilege 3172 a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe Token: SeDebugPrivilege 2556 90241ddc Token: SeTcbPrivilege 2556 90241ddc
Processes
-
C:\Users\Admin\AppData\Local\Temp\a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.exe"C:\Users\Admin\AppData\Local\Temp\a7c8000604aa319652903da7f639c95bcf907c98d118b564ec55b4045508848f.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:3172
-
C:\Windows\Syswow64\90241ddcC:\Windows\Syswow64\90241ddc1⤵
- 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:2556
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\90241ddc
- Size 761KB
- SHA256 09f61a7b3555d2f51e9b4132b65541e0fe09ae5df183fea8d400e1eeb600df29
- MD5 37238ec59839b97db2281d152a255153
- SHA1 19793593b9fe6f958af134de88a41349b4607795
- SHA512 f36a4487436f44ae66f8e8bae07f088d07b2cf2f5a8b8f695d6363a38e67c654bf69e27be301bbc405708f641e9e4cf22755b2e9524a8eb6c9bcaad26081b9a2
- SSDEEP 12288:WSvO2x9mONvKRwLSFtsOkxHya5hYIW0p98B:VvO2xJKRw2kOkxSkW298B
- TLSH T113F49E35A2808036C0B34532C6F94AABF9797D35631565CBA3843B662F737D2BA3570E
- MD5 SHA1 SHA512 SSDEEP TLSH