Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
15/04/2026, 19:43
Behavioral task
behavioral1
Sample
cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe
Resource
win11-20260130-en
windows11-21h2-x64
10 signatures
150 seconds
General
- Target cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe
- Size 768KB
- Sample260415-yfmdsshs7m
- SHA256 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b
- MD5 f3a94404796d991483fb7897815f02ca
- SHA1 2f45c5ff1df5b3de3a2edccd0f5562abefe1c19e
- SHA512 dcfb12195fc6d07b0f12f43851022b691f60d6e45065444fed78696e2377613d1965dae2f24c528aa482d7744d5c5d9a7c08c0d4383968abe65da7cfb3093a06
- SSDEEP 12288:DqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:DjHPOSOkx2LFscU6UQOJdT
- TLSH T178F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4488 86e6f164 - 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 3 114.114.114.114 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe Destination IP 6 223.5.5.5 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe Destination IP 31 114.114.114.114 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe Destination IP 32 223.5.5.5 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe - Drops file in System32 directory 13 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 86e6f164 File created C:\Windows\SysWOW64\86e6f164 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 86e6f164 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 86e6f164 -
resource yara_rule behavioral1/memory/4376-0-0x0000000000710000-0x0000000000799000-memory.dmp upx behavioral1/files/0x000f000000021658-2.dat upx behavioral1/memory/4488-3-0x0000000000200000-0x0000000000289000-memory.dmp upx behavioral1/memory/4376-18-0x0000000000710000-0x0000000000799000-memory.dmp upx behavioral1/memory/4488-20-0x0000000000200000-0x0000000000289000-memory.dmp upx behavioral1/memory/4376-35-0x0000000000710000-0x0000000000799000-memory.dmp upx behavioral1/memory/4488-36-0x0000000000200000-0x0000000000289000-memory.dmp upx behavioral1/memory/4488-38-0x0000000000200000-0x0000000000289000-memory.dmp upx behavioral1/memory/4376-39-0x0000000000710000-0x0000000000799000-memory.dmp upx behavioral1/memory/4376-42-0x0000000000710000-0x0000000000799000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\4cd610 86e6f164 File opened for modification C:\Windows\4aeb30 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.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 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 86e6f164 - 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 86e6f164 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 86e6f164 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 86e6f164 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 86e6f164 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 86e6f164 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 86e6f164 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 86e6f164 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 86e6f164 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 86e6f164 - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4488 86e6f164 4488 86e6f164 4488 86e6f164 4488 86e6f164 4488 86e6f164 4488 86e6f164 4488 86e6f164 4488 86e6f164 4488 86e6f164 4488 86e6f164 4488 86e6f164 4488 86e6f164 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe Token: SeTcbPrivilege 4376 cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe Token: SeDebugPrivilege 4488 86e6f164 Token: SeTcbPrivilege 4488 86e6f164
Processes
-
C:\Users\Admin\AppData\Local\Temp\cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.exe"C:\Users\Admin\AppData\Local\Temp\cf3fa7278550719de795cb9090009260b5ad1b9f11985679cd47108cd791634b.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:4376
-
C:\Windows\Syswow64\86e6f164C:\Windows\Syswow64\86e6f1641⤵
- 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:4488
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\86e6f164
- Size 768KB
- SHA256 1522dce41e8544f2706cbd9c368eec9fcc941da7d482ce913a3d14f064a39ac4
- MD5 664a41af3268049ae8667c681cc2799a
- SHA1 9bf0b0523b29c559e5d5761fa3b278ddf34a30e7
- SHA512 401e9f7366fb7b8358f2930a55ff7a11e38651f5b1fb760cbc030e628ff9012870f259f7710023b0b52a48d641b5c7de4511e0e66ae8dda97113ecb1e5e36583
- SSDEEP 12288:hqXUHkUXe39sOkx2LIan5FAQjU/LikGU5rCOTeidT:hjHPOSOkx2LFscU6UQOJdT
- TLSH T129F47D31E241C036D6A74572C6FA4BBBA5247D25431161CBA7C4BA262FB76D2FA3130F
- MD5 SHA1 SHA512 SSDEEP TLSH