Analysis
- max time kernel
149s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
01/06/2026, 22:51
Behavioral task
behavioral1
Sample
1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe
- Size 560KB
- Sample260601-2s416ah16p
- SHA256 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447
- MD5 3fdea2a7d2ce1f7b5629f13048631b9a
- SHA1 bb59c593bf7d3f8c13312f949bef7599541dacbc
- SHA512 3b103090d647ad68b3bb1bc8c64f3cdf12aecca1e9a8ed34a0c32d5612cd7ed5274f994d353026f7265c7197bbc944a8f9d7a0c0a28928da24444619ec8d516c
- SSDEEP 12288:s3Sgbu4VOGWPSqt6IpouYgCEmx1z725uRG9OArjlI6YeLm08XsOkx2LIa+y:gVOL4/gPXKCOkx2LFR
- TLSH T14AC46D2AB6E0D076C4B79574C4A256A6FFB1B43127204ACF6390475A1F637E2BE3530E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 6032 3f3a24c8 - 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 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe Destination IP 2 223.5.5.5 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe Destination IP 6 114.114.114.114 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe Destination IP 7 223.5.5.5 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe - Drops file in System32 directory 15 IoCs
description ioc Process File created C:\Windows\SysWOW64\3f3a24c8 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 3f3a24c8 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 3f3a24c8 -
resource yara_rule behavioral2/memory/4944-0-0x0000000000A90000-0x0000000000B1C000-memory.dmp upx behavioral2/files/0x000a00000002a254-2.dat upx behavioral2/memory/6032-4-0x0000000000D50000-0x0000000000DDC000-memory.dmp upx behavioral2/memory/4944-10-0x0000000000A90000-0x0000000000B1C000-memory.dmp upx behavioral2/memory/6032-11-0x0000000000D50000-0x0000000000DDC000-memory.dmp upx behavioral2/memory/6032-24-0x0000000000D50000-0x0000000000DDC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\674520 3f3a24c8 File opened for modification C:\Windows\54a4a0 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.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 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3f3a24c8 - 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 3f3a24c8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 3f3a24c8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 3f3a24c8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 3f3a24c8 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 3f3a24c8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 3f3a24c8 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 3f3a24c8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 3f3a24c8 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 3f3a24c8 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 6032 3f3a24c8 6032 3f3a24c8 6032 3f3a24c8 6032 3f3a24c8 6032 3f3a24c8 6032 3f3a24c8 6032 3f3a24c8 6032 3f3a24c8 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe Token: SeTcbPrivilege 4944 1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe Token: SeDebugPrivilege 6032 3f3a24c8 Token: SeTcbPrivilege 6032 3f3a24c8
Processes
-
C:\Users\Admin\AppData\Local\Temp\1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.exe"C:\Users\Admin\AppData\Local\Temp\1c2b2dd348b35a5df68f7d8ae9427971b06e046523c985293a46618f34a63447.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:4944
-
C:\Windows\Syswow64\3f3a24c8C:\Windows\Syswow64\3f3a24c81⤵
- 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:6032
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\3f3a24c8
- Size 560KB
- SHA256 79294cfa3fa98530e28818e5a210daec855e66b085a0a3f20e2bb228f4182a13
- MD5 c0ad1bd2c2d27f5391d3b5831a337f1a
- SHA1 71b8305f4ba58e96c62f21ed75d2b33e69821f67
- SHA512 8dce53024bc901cf997ae0be26446089166b75cf231054bfc1fe37a4bda6a7ef032d029560b6302deda0ca6f299364ff1a05bbc23e1314169db56d68f202ff10
- SSDEEP 12288:I3Sgbu4VOGWPSqt6IpouYgCEmx1z725uRG9OArjlI6YeLm08XsOkx2LIa+y:8VOL4/gPXKCOkx2LFR
- TLSH T1B4C46D2AB6E0D076C4B79574C4A256A6FFB1B43127204ACF6390475A1F637E2BE3530E
- MD5 SHA1 SHA512 SSDEEP TLSH