Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/08/2026, 22:18
Behavioral task
behavioral1
Sample
d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe
- Size 1024KB
- Sample260810-18b5mszemc
- SHA256 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616
- MD5 2f1ef96f374399b733021472d488fb9d
- SHA1 cdc6e09738440a12801ba6e45e73d522d9d124ca
- SHA512 4e56afd19fe41ad3070b58302718ed90a97134884d0f6973afa44828f3bf6831ed4367c08f884d53c1b9b09ba89eccb14310d73885da67040c488fa3edadd2b3
- SSDEEP 12288:KSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidl:RvO2xJKRw2kOkx2LFRvcU6UQOJdl
- TLSH T1B4256B31A681C036D5B34571C6FA4BBBA9747D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4884 a8164cb2 - 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 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe Destination IP 4 223.5.5.5 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe Destination IP 15 114.114.114.114 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe Destination IP 16 223.5.5.5 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe - Drops file in System32 directory 17 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE a8164cb2 File created C:\Windows\SysWOW64\a8164cb2 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 a8164cb2 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 a8164cb2 -
resource yara_rule behavioral2/memory/4832-0-0x00000000003D0000-0x000000000045C000-memory.dmp upx behavioral2/files/0x000600000001b867-2.dat upx behavioral2/memory/4884-3-0x0000000000730000-0x00000000007BC000-memory.dmp upx behavioral2/memory/4832-15-0x00000000003D0000-0x000000000045C000-memory.dmp upx behavioral2/memory/4884-16-0x0000000000730000-0x00000000007BC000-memory.dmp upx behavioral2/memory/4884-39-0x0000000000730000-0x00000000007BC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\539da8 a8164cb2 File opened for modification C:\Windows\52b9c0 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.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 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a8164cb2 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" a8164cb2 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix a8164cb2 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing a8164cb2 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" a8164cb2 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" a8164cb2 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ a8164cb2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" a8164cb2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" a8164cb2 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" a8164cb2 - Suspicious behavior: EnumeratesProcesses 22 IoCs
pid Process 4884 a8164cb2 4884 a8164cb2 4884 a8164cb2 4884 a8164cb2 4884 a8164cb2 4884 a8164cb2 4884 a8164cb2 4884 a8164cb2 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe Token: SeTcbPrivilege 4832 d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe Token: SeDebugPrivilege 4884 a8164cb2 Token: SeTcbPrivilege 4884 a8164cb2
Processes
-
C:\Users\Admin\AppData\Local\Temp\d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.exe"C:\Users\Admin\AppData\Local\Temp\d635866ba1dbdfa175b970a1e7070eba1fa5cab40ab19e38046017c244705616.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:4832
-
C:\Windows\Syswow64\a8164cb2C:\Windows\Syswow64\a8164cb21⤵
- 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:4884
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\a8164cb2
- Size 1024KB
- SHA256 17aab858fe0d61fceac7c308f6ae28ea46b0bd0152ecf4a14c7f75b54e6da4ac
- MD5 fec201797db18668fb37a399abfea397
- SHA1 fb0442a17b05df7415147203325a1bc80818ba48
- SHA512 4359613638fd6f502f10fd4dd23a0575677cd1153775080057657fbb547ddba412d0b16d13771cdb9da2e5c0e67de4e2b428547e945606ad3ec863063cb2d292
- SSDEEP 12288:qSvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/LikGU5rCOTeidl:xvO2xJKRw2kOkx2LFRvcU6UQOJdl
- TLSH T167256B31A681C036D5B34571C6FA4BBBA9747D21531165CBA3C47A2A2FB37D2BA3130E
- MD5 SHA1 SHA512 SSDEEP TLSH