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
05/09/2026, 01:57
Behavioral task
behavioral1
Sample
d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe
- Size 560KB
- Sample260905-cdeqaavcpc
- SHA256 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c
- MD5 36fe8bd10896744980ebb32b09360c75
- SHA1 e46942d43fe00e74ccd51412657222c966d3040f
- SHA512 e62168ea0f77feb6575d1dd6783663350a1791a3926f2560458333979803e8dfa266ab64434635f844b82628440e1d53038756826ea61b678d2f0c83acb3ffd2
- SSDEEP 12288:fftONCx61vvGEYQFNEhyQU/lLi2IsOkxHy:HtONCTU/lmaOkxS
- TLSH T137C48E29B6E0C076C4B79574C4A186BAFAB17432372089CFA39407571F637D2BA3974E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1680 4f7ab96c - 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 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Destination IP 6 223.5.5.5 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Destination IP 60 114.114.114.114 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Destination IP 63 223.5.5.5 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.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 4f7ab96c File created C:\Windows\SysWOW64\4f7ab96c d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 4f7ab96c File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4f7ab96c -
resource yara_rule behavioral1/memory/3792-0-0x0000000000730000-0x00000000007BC000-memory.dmp upx behavioral1/files/0x000f0000000243c2-2.dat upx behavioral1/memory/1680-4-0x0000000000440000-0x00000000004CC000-memory.dmp upx behavioral1/memory/3792-16-0x0000000000730000-0x00000000007BC000-memory.dmp upx behavioral1/memory/1680-17-0x0000000000440000-0x00000000004CC000-memory.dmp upx behavioral1/memory/1680-22-0x0000000000440000-0x00000000004CC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\1cc320 4f7ab96c File opened for modification C:\Windows\40eba0 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.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 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4f7ab96c - 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 4f7ab96c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4f7ab96c Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 4f7ab96c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4f7ab96c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4f7ab96c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 4f7ab96c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4f7ab96c Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4f7ab96c Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 4f7ab96c - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1680 4f7ab96c 1680 4f7ab96c 1680 4f7ab96c 1680 4f7ab96c 1680 4f7ab96c 1680 4f7ab96c 1680 4f7ab96c 1680 4f7ab96c 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Token: SeTcbPrivilege 3792 d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe Token: SeDebugPrivilege 1680 4f7ab96c Token: SeTcbPrivilege 1680 4f7ab96c
Processes
-
C:\Users\Admin\AppData\Local\Temp\d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.exe"C:\Users\Admin\AppData\Local\Temp\d1b3f272a99401336f2b29637e0410ec01fb93fd9e8be4ac466784894fb32e0c.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:3792
-
C:\Windows\Syswow64\4f7ab96cC:\Windows\Syswow64\4f7ab96c1⤵
- 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:1680
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\4f7ab96c
- Size 560KB
- SHA256 bd87ca4f17ca57ae4c0bfa7fa89cae5e988209ceb117978ebc4264c53ebc74be
- MD5 9964ee1eda677b5f4b58da077c1f6077
- SHA1 8844f0fbedfde71cb7c730bfa15b4e0ef8d71c68
- SHA512 6f0828768a3242172ecb6b9ba2e685292c297015e985e954e70125843d5a6bb0a4f4550e339e1e1ce249ba3813a1e639c07f2a9b7de99c0665f46916a7a2d209
- SSDEEP 12288:PftONCx61vvGEYQFNEhyQU/lLi2IsOkxHy:3tONCTU/lmaOkxS
- TLSH T143C48E29B6E0C076C4B79574C4A186BAFAB17432372089CFA39407571F637D2BA3974E
- MD5 SHA1 SHA512 SSDEEP TLSH