Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
28/05/2026, 10:23
Behavioral task
behavioral1
Sample
d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe
- Size 560KB
- Sample260528-mevs1aev3v
- SHA256 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e
- MD5 8ff82f1098bff2720d79dc7f6f2ab562
- SHA1 5233caa9357b4aba6570537eca83bdfe21ec4b6f
- SHA512 a9674796264c4b051d36b1374929c82f965be1204917c226374c3d381e13039133203340dd98d1e1db24a96de157dc6d67bad161032cebd98d32005c13689644
- SSDEEP 6144:EWVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRXr9HNdvOa+y8K:EkCO2zVPX7vf1LKlIsOkx2LIa+y
- TLSH T1F1C47C2AF6A0C036C4779574C4A257AAFFB1B42127204ACFA390475A1F637E2BE7531D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4020 a82a2a7 - 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 1 114.114.114.114 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe Destination IP 2 223.5.5.5 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe Destination IP 9 114.114.114.114 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe Destination IP 10 223.5.5.5 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a82a2a7 File created C:\Windows\SysWOW64\a82a2a7 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a82a2a7 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a82a2a7 -
resource yara_rule behavioral2/memory/956-0-0x00000000000C0000-0x000000000014C000-memory.dmp upx behavioral2/files/0x001e00000002b276-2.dat upx behavioral2/memory/4020-3-0x00000000006C0000-0x000000000074C000-memory.dmp upx behavioral2/memory/956-10-0x00000000000C0000-0x000000000014C000-memory.dmp upx behavioral2/memory/4020-11-0x00000000006C0000-0x000000000074C000-memory.dmp upx behavioral2/memory/4020-22-0x00000000006C0000-0x000000000074C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\44d2e8 a82a2a7 File opened for modification C:\Windows\105df8 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.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 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a82a2a7 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a82a2a7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a82a2a7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a82a2a7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a82a2a7 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a82a2a7 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a82a2a7 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" a82a2a7 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a82a2a7 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a82a2a7 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4020 a82a2a7 4020 a82a2a7 4020 a82a2a7 4020 a82a2a7 4020 a82a2a7 4020 a82a2a7 4020 a82a2a7 4020 a82a2a7 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe Token: SeTcbPrivilege 956 d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe Token: SeDebugPrivilege 4020 a82a2a7 Token: SeTcbPrivilege 4020 a82a2a7
Processes
-
C:\Users\Admin\AppData\Local\Temp\d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.exe"C:\Users\Admin\AppData\Local\Temp\d8c1dd1422665b30f27af1dbaae1bfb8b8d0707c1ebc3c80b96b42c394b38c7e.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:956
-
C:\Windows\Syswow64\a82a2a7C:\Windows\Syswow64\a82a2a71⤵
- 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:4020
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a82a2a7
- Size 560KB
- SHA256 e5601451e01d3d8659aeebe147ad0fe4f7c60416a59c27a3b690e47848e571ee
- MD5 3f2ddbd90bf23fd28cb7833c89d8c7bf
- SHA1 b3e2802fa9b9674890b00fb17f83b836ae63bd02
- SHA512 86ba920c8b81ac75873d3b753d811cfdaf143c0d70a268bfd9426bad605ae280acb9590b805bdb3ef93df33fda1e1734fe48509fb99eea1af1aab67d044215be
- SSDEEP 6144:iWVrC1c2oonALgPLj7vf1LKlyIFVirGcEOkCybEaQRXr9HNdvOa+y8K:ikCO2zVPX7vf1LKlIsOkx2LIa+y
- TLSH T1DCC47C2AF6A0C036C4779574C4A257AAFFB1B42127204ACFA390475A1F637E2BE7531D
- MD5 SHA1 SHA512 SSDEEP TLSH