Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
17/04/2026, 03:29
Behavioral task
behavioral1
Sample
1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe
- Size 2.9MB
- Sample260417-d2aa5ses7q
- SHA256 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666
- MD5 2f31026b0d475d0cb2f365b235246fe7
- SHA1 9f81b1d266180f412040fbeb46fb5db4baaa7256
- SHA512 b5778b174dabbe6506165df4753efa4a473b938d7fe55b301becd866661422530aeb4d2c7ce5feed0e650e74b3eb861e99d45167fd046ab32202137ad9b7a585
- SSDEEP 49152:IHHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:InKGEkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T1A8D59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3548 ec089303 - 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 12 223.5.5.5 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe Destination IP 1 114.114.114.114 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe Destination IP 2 223.5.5.5 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe Destination IP 11 114.114.114.114 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content ec089303 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 ec089303 File created C:\Windows\SysWOW64\ec089303 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 ec089303 -
resource yara_rule behavioral2/memory/4692-0-0x0000000000D10000-0x0000000000D9C000-memory.dmp upx behavioral2/memory/3548-4-0x00000000000B0000-0x000000000013C000-memory.dmp upx behavioral2/files/0x000b000000027007-3.dat upx behavioral2/memory/4692-18-0x0000000000D10000-0x0000000000D9C000-memory.dmp upx behavioral2/memory/3548-20-0x00000000000B0000-0x000000000013C000-memory.dmp upx behavioral2/memory/3548-36-0x00000000000B0000-0x000000000013C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3cbe38 ec089303 File opened for modification C:\Windows\505428 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.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 ec089303 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe - 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\History\CachePrefix = "Visited:" ec089303 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ ec089303 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" ec089303 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" ec089303 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" ec089303 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" ec089303 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing ec089303 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix ec089303 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" ec089303 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3548 ec089303 3548 ec089303 3548 ec089303 3548 ec089303 3548 ec089303 3548 ec089303 3548 ec089303 3548 ec089303 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe Token: SeTcbPrivilege 4692 1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe Token: SeDebugPrivilege 3548 ec089303 Token: SeTcbPrivilege 3548 ec089303
Processes
-
C:\Users\Admin\AppData\Local\Temp\1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.exe"C:\Users\Admin\AppData\Local\Temp\1c6dd42b293334abb80c879f10948e02b46fa7e9f3a8138a1da4802e180a3666.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:4692
-
C:\Windows\Syswow64\ec089303C:\Windows\Syswow64\ec0893031⤵
- 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:3548
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\ec089303
- Size 2.9MB
- SHA256 ad3a534e59190b1707b5b90c7acaa06258fd3e41dd714740103abde052a343b1
- MD5 6a6da50339a05feb6a623add10be303f
- SHA1 5926b9daabea54abad904a284c5a4a669190b571
- SHA512 379d0bad62dfb2fca46a335cfdbc1567b1e1c272fcbe88b2acd82b877823e1b89ce25a0e016c4ee527891b9a3e4301295613c61f0c3f1e076f50502a3abbeafb
- SSDEEP 49152:0HHKe2WQX56/OJdJCXDrsOFZMjHfUTGkQy5QZuTtS0rQMYOF:0nKGEkOhCXHHFZMjHfUKkVWsM0r1F
- TLSH T15BD59E31B6818036D1B7467186FA47BBA5257C211721A5CFB3C47B2A1FB36D2AE3170E
- MD5 SHA1 SHA512 SSDEEP TLSH