Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/07/2026, 10:21
Behavioral task
behavioral1
Sample
839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe
- Size 873KB
- Sample260729-mds8sa1fnd
- SHA256 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5
- MD5 133155e3ac4abb956fc88e24ad395077
- SHA1 240d7fc958b43bff4804f8fb68c88b1b60576813
- SHA512 4d437d63353d847f424731d973515dea57385e79620dea4ba64d0dc136f392e040056ef3bb17aea23556c32d61d4b70386957c53d5ed64183a4e8fd9ff5ddf2d
- SSDEEP 12288:ySvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3uEW:ZvO2xJKRw2kOkx2LFRvcUQPxW
- TLSH T18F156B31E641C036D0A34576C6FA4BBFE964BD25531165CBA3D43A262FB32D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4876 e5c819cc - 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 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Destination IP 3 223.5.5.5 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Destination IP 27 114.114.114.114 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Destination IP 28 223.5.5.5 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 e5c819cc File created C:\Windows\SysWOW64\e5c819cc 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies e5c819cc File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 e5c819cc -
resource yara_rule behavioral2/memory/2760-0-0x0000000000240000-0x00000000002CC000-memory.dmp upx behavioral2/files/0x000a000000011390-2.dat upx behavioral2/memory/4876-3-0x0000000000F40000-0x0000000000FCC000-memory.dmp upx behavioral2/memory/2760-25-0x0000000000240000-0x00000000002CC000-memory.dmp upx behavioral2/memory/4876-26-0x0000000000F40000-0x0000000000FCC000-memory.dmp upx behavioral2/memory/4876-47-0x0000000000F40000-0x0000000000FCC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\537a98 e5c819cc File opened for modification C:\Windows\2f4090 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.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 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e5c819cc - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" e5c819cc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing e5c819cc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" e5c819cc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" e5c819cc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" e5c819cc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix e5c819cc Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" e5c819cc Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ e5c819cc Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" e5c819cc - Suspicious behavior: EnumeratesProcesses 40 IoCs
pid Process 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 4876 e5c819cc 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Token: SeTcbPrivilege 2760 839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe Token: SeDebugPrivilege 4876 e5c819cc Token: SeTcbPrivilege 4876 e5c819cc
Processes
-
C:\Users\Admin\AppData\Local\Temp\839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.exe"C:\Users\Admin\AppData\Local\Temp\839f3dabfaf7298c38a6af901769e76e6899772c7c79c4b360df2dad008023b5.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:2760
-
C:\Windows\Syswow64\e5c819ccC:\Windows\Syswow64\e5c819cc1⤵
- 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:4876
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\537a98
- Size 1KB
- SHA256 748ccb170a39fd72058bbded4990e47933a46c5ff846bdcde990b62bd8b1ff48
- MD5 f3378b48570d145ef10961b59b773122
- SHA1 f7ea7dcc5b28d34488b39729a21955789ca72780
- SHA512 f27ee43d0e36a7e921cb981553566619fd4ad2c220f72c1fec655fec2b334500a811a1b4d40b256a96dc2000b7584c28b9665a56a05ef05f2ab860d9029d560f
- TLSH T1A421057FF0FCB0E156BE73D55A46C4C8B536A03789042059018738EB64E3598DE13A3D
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\SysWOW64\e5c819cc
- Size 873KB
- SHA256 f2f8a13ba73196056e7533eb4bd4e3743a0c8789c8a2655b4984b4e3a0148426
- MD5 72817d5e83eb8bb5b604b89e2b69d9d1
- SHA1 cbbfac22ea823c4d7103cca360a9a22b89883bc6
- SHA512 56e3b96f75efcc88a768734bd9bc73463e95866a56c484a249d4217e9deb5d7da8d1720f72dd453da725353cedb4bc81477ec9d0c7b0142e5838d99af8e697c4
- SSDEEP 12288:PSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3uEW:6vO2xJKRw2kOkx2LFRvcUQPxW
- TLSH T105156B31E641C036D0A34576C6FA4BBFE964BD25531165CBA3D43A262FB32D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH