Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
25/04/2026, 10:19
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe
Resource
win11-20260130-en
windows11-21h2-x64
9 signatures
150 seconds
General
- Target b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe
- Size 419KB
- Sample260425-mchewsbx2m
- SHA256 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0
- MD5 628b01b8bba29d424c846a7f206a446f
- SHA1 d1307edd695a9f126509f8e40ae4e0901c63c5d4
- SHA512 0c5ad3f6a618f09a73f78e1c6d8683987da53507429496068c4faed8118d5c988a8e032ca33ef95cb937fb0d8ef6ee73addd78b52d9be930062bfcf3d9728a49
- SSDEEP 6144:watygN+TkFSLZ+knaTDH76VFwcEOkCybEaQRXr9HNdvOa:watG+S9+kaTDHrOkx2LIa
- TLSH T17A948C19FAA08076C563857AC4E257A6FBB1B5223B109ACF639007565F237E3BD3530E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3460 4c259148 - 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 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe Destination IP 6 223.5.5.5 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe Destination IP 32 114.114.114.114 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe Destination IP 34 223.5.5.5 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe - Drops file in System32 directory 15 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4c259148 File created C:\Windows\SysWOW64\4c259148 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\81B9B36F9ABC4DA631A4713EE66FAEC6_D78A39BE9A7C3823659C09F61E8BD3E8 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 4c259148 File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\66F835E41EC6A985EB9271E4A70169D7_CF44E3C99F7F4AC558EEB35244F7E046 4c259148 - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\3b3c88 4c259148 File opened for modification C:\Windows\39dde8 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.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 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4c259148 - 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" 4c259148 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing 4c259148 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix 4c259148 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" 4c259148 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" 4c259148 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" 4c259148 Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" 4c259148 Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ 4c259148 Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" 4c259148 - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 3460 4c259148 3460 4c259148 3460 4c259148 3460 4c259148 3460 4c259148 3460 4c259148 3460 4c259148 3460 4c259148 3460 4c259148 3460 4c259148 3460 4c259148 3460 4c259148 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe Token: SeTcbPrivilege 3380 b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe Token: SeDebugPrivilege 3460 4c259148 Token: SeTcbPrivilege 3460 4c259148
Processes
-
C:\Users\Admin\AppData\Local\Temp\b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.exe"C:\Users\Admin\AppData\Local\Temp\b73b8a97a29b370d99ee44edef90f74df89c2cc67f1e773882e13135bb0bd2b0.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:3380
-
C:\Windows\Syswow64\4c259148C:\Windows\Syswow64\4c2591481⤵
- 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:3460
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\4c259148
- Size 419KB
- SHA256 e94f7a35a1ad8316d30691a9a6de59449830a68cc212e454f138be2cd10fd4cb
- MD5 68b41dcdbabd0b6c567a4807426c3f0c
- SHA1 11841598ce2323af2be950fa3512625587a2d6ea
- SHA512 b3bb148b2c24382c3d22994c811a4612e694941c36e8db074fdfd008141c0d0b54c0ed045bea1a5b04b32aaf9b904034019dfc640160b9d2651958db359f8ef5
- SSDEEP 6144:PatygN+TkFSLZ+knaTDH76VFwcEOkCybEaQRXr9HNdvOa:PatG+S9+kaTDHrOkx2LIa
- TLSH T1E3948C19FAA08076C563857AC4E257A6FBB1B5223B109ACF639007565F237E3BD3530E
- MD5 SHA1 SHA512 SSDEEP TLSH