Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/10/2026, 08:00
Behavioral task
behavioral1
Sample
8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe
- Size 832KB
- Sample261002-jv2dyazzf1
- SHA256 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2
- MD5 409a93016a535141adac2eafffa94b2d
- SHA1 93dec375975c86652f464066ec4f4ed6506927dd
- SHA512 0c783a046f78c23d0f874dd3157c915c62d6de0972487d4f5f8ad678c3ea1d13f732d1eb07bb588a3fb5a5f75d8caba9a440eeabe870c7ea8a2aba3e4be516e2
- SSDEEP 12288:zSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Likr:GvO2xJKRw2kOkx2LFRvcUv
- TLSH T181055A31E6418036D1B34576C6FA0BBFE664BD25131155CBA3C4BA262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 860 acbc661a - Unexpected DNS network traffic destination 22 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 94 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 181 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 273 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 353 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 39 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 93 114.114.114.114 860 acbc661a Destination IP 148 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 180 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 320 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 406 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 460 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 1 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 40 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 149 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 319 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 352 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 407 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 461 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 234 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 235 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 271 114.114.114.114 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Destination IP 4 223.5.5.5 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 acbc661a File created C:\Windows\SysWOW64\acbc661a 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache acbc661a File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData acbc661a -
resource yara_rule behavioral2/memory/4108-0-0x00000000001F0000-0x000000000027C000-memory.dmp upx behavioral2/files/0x0006000000016b39-3.dat upx behavioral2/memory/860-4-0x0000000000730000-0x00000000007BC000-memory.dmp upx behavioral2/memory/4108-18-0x00000000001F0000-0x000000000027C000-memory.dmp upx behavioral2/memory/860-19-0x0000000000730000-0x00000000007BC000-memory.dmp upx behavioral2/memory/860-42-0x0000000000730000-0x00000000007BC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\eb938 acbc661a File opened for modification C:\Windows\465498 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain acbc661a Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname acbc661a - 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 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language acbc661a - 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\Cookies\CachePrefix = "Cookie:" acbc661a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" acbc661a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ acbc661a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" acbc661a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" acbc661a Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing acbc661a Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix acbc661a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" acbc661a Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" acbc661a - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 860 acbc661a 860 acbc661a 860 acbc661a 860 acbc661a 860 acbc661a 860 acbc661a 860 acbc661a 860 acbc661a 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Token: SeTcbPrivilege 4108 8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe Token: SeDebugPrivilege 860 acbc661a Token: SeTcbPrivilege 860 acbc661a
Processes
-
C:\Users\Admin\AppData\Local\Temp\8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe"C:\Users\Admin\AppData\Local\Temp\8172b3733cd25a4077f2ade4fde98b9bc2ea58529e981a40de46f091da74f9e2.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4108
-
C:\Windows\Syswow64\acbc661aC:\Windows\Syswow64\acbc661a1⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:860
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\acbc661a
- Size 832KB
- SHA256 86197f6ec60c59a6c003d11223eb7ec47765c6c5d735f08c41ab15f64f9f185f
- MD5 a76b3f2cc9fb79098ce9391c9c35f6b8
- SHA1 83aa9425a2a98b483b505add80698308f408f047
- SHA512 dcf0deae77e1ed8ac64873765b85ff0867535e377f8f63247cd625ca817868814a1996df1feb82dcbbcd5b8dedccfdc153da9551150799018bb2e881340cf425
- SSDEEP 12288:oSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Likr:jvO2xJKRw2kOkx2LFRvcUv
- TLSH T154055A31E6418036D1B34576C6FA0BBFE664BD25131155CBA3C4BA262FB36D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH