Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
28/04/2026, 20:21
Behavioral task
behavioral1
Sample
8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe
Resource
win11-20260130-en
windows11-21h2-x64
10 signatures
150 seconds
General
- Target 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe
- Size 768KB
- Sample260428-y471eah13m
- SHA256 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020
- MD5 7e4f593c1cfd3110c1f7e0d27c087fb6
- SHA1 dfcb32cb8e1db6bd238dd7913c65f1be133f2109
- SHA512 051558c5c6d1a3da49a40683b14d49e88d40a6f2b42f7dc6fca0b2fe98195bac18802d127645407800fe64e7146c8bd74636849a3225472f60d7caded090636c
- SSDEEP 12288:kqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:kjHPOSOkx2LFscU6UQOJdT
- TLSH T154F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3468 66b51abc - Unexpected DNS network traffic destination 6 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description flow ioc pid Process Destination IP 4 223.5.5.5 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe Destination IP 35 114.114.114.114 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe Destination IP 37 223.5.5.5 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe Destination IP 89 114.114.114.114 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe Destination IP 90 223.5.5.5 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe Destination IP 3 114.114.114.114 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe - Drops file in System32 directory 13 IoCs
description ioc Process File created C:\Windows\SysWOW64\66b51abc 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 66b51abc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 66b51abc -
resource yara_rule behavioral1/memory/3964-0-0x0000000000A70000-0x0000000000AF9000-memory.dmp upx behavioral1/files/0x000800000001dc10-2.dat upx behavioral1/memory/3468-4-0x0000000000780000-0x0000000000809000-memory.dmp upx behavioral1/memory/3964-16-0x0000000000A70000-0x0000000000AF9000-memory.dmp upx behavioral1/memory/3468-18-0x0000000000780000-0x0000000000809000-memory.dmp upx behavioral1/memory/3964-36-0x0000000000A70000-0x0000000000AF9000-memory.dmp upx behavioral1/memory/3468-38-0x0000000000780000-0x0000000000809000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\43dd78 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe File opened for modification C:\Windows\3b5f98 66b51abc - 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 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 66b51abc - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 66b51abc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 66b51abc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 66b51abc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 66b51abc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 66b51abc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 66b51abc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 66b51abc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 66b51abc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 66b51abc - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3468 66b51abc 3468 66b51abc 3468 66b51abc 3468 66b51abc 3468 66b51abc 3468 66b51abc 3468 66b51abc 3468 66b51abc 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe Token: SeTcbPrivilege 3964 8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe Token: SeDebugPrivilege 3468 66b51abc Token: SeTcbPrivilege 3468 66b51abc
Processes
-
C:\Users\Admin\AppData\Local\Temp\8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.exe"C:\Users\Admin\AppData\Local\Temp\8e099cff49c6ab14e70c7a68a1f2d9809ce662026f56f1ca608bf7feba783020.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:3964
-
C:\Windows\Syswow64\66b51abcC:\Windows\Syswow64\66b51abc1⤵
- 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:3468
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\66b51abc
- Size 768KB
- SHA256 8f80e289b4e83113f587a2c035c912fc1078d3cdadd0806b8be97a4ccffb1f1c
- MD5 9fa594d06af3338b589e227dc0afe4f0
- SHA1 f2fa09d1ac4599a94aff21a8965503146329a64b
- SHA512 df08e1c1c10c0d74e067a925b3b9962a272aeff36720a57a619bd552c343dd301fc63862dcb8cbf564716a67127f9a664433d9dcb5d34ccdf908c8b2ccc1e87f
- SSDEEP 12288:nqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:njHPOSOkx2LFscU6UQOJdT
- TLSH T15AF47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH