Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
07/05/2026, 07:28
Behavioral task
behavioral1
Sample
f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe
- Size 548KB
- Sample260507-jarn1ahs2w
- SHA256 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d
- MD5 92e04d8060d95f68e64c6dac50808989
- SHA1 2159bb67ead639b34cc44055205262aedb599c98
- SHA512 04d931225d6f38078428567a28d3f7e0e82214bb4c505008fcea6a110112597f85c589b831b57a191f6a82561916181716a3fbf50ab23fa6c80425d6dca19e9d
- SSDEEP 12288:okbOgbKcMoxy9RLW3uqXUHkUXe39+Okx2LIa:pbOgbEqy9RKejHPOwOkx2LF
- TLSH T169C4AE26F6A0C032C4B79574C4A34AAAFBB1742167204ACFA395475A1F737E2BE3531D
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4812 eb870536 - 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 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe Destination IP 2 223.5.5.5 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe Destination IP 18 114.114.114.114 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe Destination IP 19 223.5.5.5 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 eb870536 File created C:\Windows\SysWOW64\eb870536 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 eb870536 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE eb870536 -
resource yara_rule behavioral2/memory/4408-0-0x00000000008C0000-0x0000000000949000-memory.dmp upx behavioral2/files/0x002000000002b101-3.dat upx behavioral2/memory/4812-4-0x00000000008E0000-0x0000000000969000-memory.dmp upx behavioral2/memory/4408-18-0x00000000008C0000-0x0000000000949000-memory.dmp upx behavioral2/memory/4812-20-0x00000000008E0000-0x0000000000969000-memory.dmp upx behavioral2/memory/4408-35-0x00000000008C0000-0x0000000000949000-memory.dmp upx behavioral2/memory/4812-36-0x00000000008E0000-0x0000000000969000-memory.dmp upx behavioral2/memory/4408-39-0x00000000008C0000-0x0000000000949000-memory.dmp upx behavioral2/memory/4812-40-0x00000000008E0000-0x0000000000969000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\526218 eb870536 File opened for modification C:\Windows\4b7770 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.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 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language eb870536 - 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 eb870536 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" eb870536 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ eb870536 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" eb870536 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" eb870536 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" eb870536 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing eb870536 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" eb870536 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" eb870536 - Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 4812 eb870536 4812 eb870536 4812 eb870536 4812 eb870536 4812 eb870536 4812 eb870536 4812 eb870536 4812 eb870536 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe Token: SeTcbPrivilege 4408 f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe Token: SeDebugPrivilege 4812 eb870536 Token: SeTcbPrivilege 4812 eb870536
Processes
-
C:\Users\Admin\AppData\Local\Temp\f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.exe"C:\Users\Admin\AppData\Local\Temp\f6df9c345fa6350e968ea3656e358a86c65783f48d5e938cb9e6879078af668d.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:4408
-
C:\Windows\Syswow64\eb870536C:\Windows\Syswow64\eb8705361⤵
- 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:4812
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\eb870536
- Size 548KB
- SHA256 f671dd4cd1762b4658b4ca76c63aa78e0e32b5c208e49a3930f2fdcb0aeafd28
- MD5 e716f76c8be9e8366e165373d0a36c78
- SHA1 3ce8130a8801b6af3577d7e686898932c2e483c7
- SHA512 98162fcc8f1977129a5b48b7bc7eb801bb34b4ea522ffc05d7b63617ad47ed4a6cfc9b761a9cd4f231a4ecbfa14570ba6602e2374378d92f8cb417e8be39ebee
- SSDEEP 12288:1kbOgbKcMoxy9RLW3uqXUHkUXe39+Okx2LIa:abOgbEqy9RKejHPOwOkx2LF
- TLSH T1A4C4AE26F6A0C032C4B79574C4A34AAAFBB1742167204ACFA395475A1F737E2BE3531D
- MD5 SHA1 SHA512 SSDEEP TLSH