Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
12/08/2026, 04:48
Behavioral task
behavioral1
Sample
b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe
- Size 873KB
- Sample260812-ffbm7awsd1
- SHA256 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0
- MD5 80cb679941f8212dc486650dc3f7418a
- SHA1 2ab6cfe591486b7a670267c9a982921258ce925a
- SHA512 0db4288b50ca1f52cd5dfc45242cdc588cc30339409f7321bc251d495c90a9b1f02d46d0ca75bcf1878e18e5b2bdce149619b87bbd1a757fa0b37b963fc804eb
- SSDEEP 12288:+SvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3uEW:9vO2xJKRw2kOkx2LFRvcUQPxW
- TLSH T1C6156B31E641C036D0A34576C6FA4BBFE964BD25531165CBA3D43A262FB32D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4904 899aff84 - 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 5 114.114.114.114 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe Destination IP 6 223.5.5.5 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe Destination IP 28 114.114.114.114 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe Destination IP 31 223.5.5.5 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.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 899aff84 File created C:\Windows\SysWOW64\899aff84 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3EC845F33427F1C99AF855BE8930371C 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3EC845F33427F1C99AF855BE8930371C 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 899aff84 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 899aff84 -
resource yara_rule behavioral1/memory/2776-0-0x00000000004F0000-0x000000000057C000-memory.dmp upx behavioral1/files/0x00060000000004ec-2.dat upx behavioral1/memory/4904-3-0x0000000000960000-0x00000000009EC000-memory.dmp upx behavioral1/memory/2776-17-0x00000000004F0000-0x000000000057C000-memory.dmp upx behavioral1/memory/4904-18-0x0000000000960000-0x00000000009EC000-memory.dmp upx behavioral1/memory/4904-25-0x0000000000960000-0x00000000009EC000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\53f550 899aff84 File opened for modification C:\Windows\2f86b0 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.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 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 899aff84 - Modifies data under HKEY_USERS 9 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 899aff84 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 899aff84 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 899aff84 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 899aff84 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 899aff84 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 899aff84 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" 899aff84 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 899aff84 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 899aff84 - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 4904 899aff84 4904 899aff84 4904 899aff84 4904 899aff84 4904 899aff84 4904 899aff84 4904 899aff84 4904 899aff84 4904 899aff84 4904 899aff84 4904 899aff84 4904 899aff84 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe Token: SeTcbPrivilege 2776 b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe Token: SeDebugPrivilege 4904 899aff84 Token: SeTcbPrivilege 4904 899aff84
Processes
-
C:\Users\Admin\AppData\Local\Temp\b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.exe"C:\Users\Admin\AppData\Local\Temp\b7b167b1bc3e8e7a511a1947f5e340626cb4d856751d859de3cf9284de69a3e0.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:2776
-
C:\Windows\Syswow64\899aff84C:\Windows\Syswow64\899aff841⤵
- 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:4904
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\899aff84
- Size 873KB
- SHA256 33880da6a90c007f4f445f9ba5b7a5c21a52cf86dc4b377acccea1c36d31853c
- MD5 f3b74765c2984bfb1a9d95469e54ef24
- SHA1 75322a5f1d7ed93f6b67b5e5414db4cd98cc4d0b
- SHA512 fd34a0ea3dba523812a772ef7eb3ad32d18c28dbb13f6ce51a2287e5bb6d5cfe1f126679fae3e2bb5dc8c006d88d10fa11a828a348bfc0251f9d847d70fea31a
- SSDEEP 12288:ASvO2x9mONvKRwLSFtsOkx2LIa+ya5FAQjU/Lik8CQ3uEW:bvO2xJKRw2kOkx2LFRvcUQPxW
- TLSH T176156B31E641C036D0A34576C6FA4BBFE964BD25531165CBA3D43A262FB32D2BA3170E
- MD5 SHA1 SHA512 SSDEEP TLSH