Analysis
- max time kernel
148s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/07/2026, 07:51
Behavioral task
behavioral1
Sample
b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe
- Size 1.7MB
- Sample260702-jp6fpscw3n
- SHA256 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb
- MD5 eafd57b6b5210562e431768ccb5392b8
- SHA1 d6fc7d80848a1f17204d2b9e615e38b4f8403d96
- SHA512 fd96c31cb977d4be24e59cb2e0c5a15accc29ebf760f56eeaace04445430c9beefc3e23d6b46ae94d30480d13843255d55107615f27df921755ddc329610f44d
- SSDEEP 24576:/vO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:/HHKe2WQX56/OJdJCXDrsOFZMjHfUr
- TLSH T1C7858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5708 b27dec18 - 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 36 114.114.114.114 5708 b27dec18 Destination IP 37 223.5.5.5 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe Destination IP 40 114.114.114.114 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe Destination IP 41 223.5.5.5 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe Destination IP 1 114.114.114.114 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe Destination IP 2 223.5.5.5 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 b27dec18 File created C:\Windows\SysWOW64\b27dec18 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE b27dec18 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 b27dec18 -
resource yara_rule behavioral2/memory/1052-0-0x0000000000A70000-0x0000000000AFC000-memory.dmp upx behavioral2/files/0x001e00000001c4c7-2.dat upx behavioral2/memory/5708-3-0x00000000007F0000-0x000000000087C000-memory.dmp upx behavioral2/memory/1052-18-0x0000000000A70000-0x0000000000AFC000-memory.dmp upx behavioral2/memory/5708-19-0x00000000007F0000-0x000000000087C000-memory.dmp upx behavioral2/memory/5708-32-0x00000000007F0000-0x000000000087C000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\61b918 b27dec18 File opened for modification C:\Windows\1202b8 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.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 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b27dec18 - 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:" b27dec18 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ b27dec18 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" b27dec18 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing b27dec18 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix b27dec18 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" b27dec18 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" b27dec18 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" b27dec18 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" b27dec18 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 5708 b27dec18 5708 b27dec18 5708 b27dec18 5708 b27dec18 5708 b27dec18 5708 b27dec18 5708 b27dec18 5708 b27dec18 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe Token: SeTcbPrivilege 1052 b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe Token: SeDebugPrivilege 5708 b27dec18 Token: SeTcbPrivilege 5708 b27dec18
Processes
-
C:\Users\Admin\AppData\Local\Temp\b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.exe"C:\Users\Admin\AppData\Local\Temp\b11e97ddc3a677e4ac2affcfa5d998c26ac73337a8c2c487b4cfa8e351b373fb.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:1052
-
C:\Windows\Syswow64\b27dec18C:\Windows\Syswow64\b27dec181⤵
- Executes dropped EXE
- Unexpected DNS network traffic destination
- 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:5708
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\b27dec18
- Size 1.7MB
- SHA256 c73cfcead504e9d35aacef23a810807300bf13df03580d4c8ec8f5fdaaab155c
- MD5 431e05d2b8c10416354f0fdb67ca3c7e
- SHA1 446c027ba532c810d81159a88b2973382b600ab1
- SHA512 4c11f16886bc06f2f4398df720544d14eccae038c638c172e988aea8e034cc313470d653b2e40262bffdb6343cbdc56fefed32bd27ad616bc5239045c578d0eb
- SSDEEP 24576:7vO2xJKRw2kOkx2LFRvcU6UQOJdBqsCPhH9Do2sOfNZMjHfUr:7HHKe2WQX56/OJdJCXDrsOFZMjHfUr
- TLSH T13B858D31AAC04132E2B3867585FA56F6A9257C222721E5CF62C57B291E737D3ED3070E
- MD5 SHA1 SHA512 SSDEEP TLSH