File name:

CH341SER.EXE

Full analysis: https://app.any.run/tasks/3f54262e-0db2-4ef5-9d6d-84599ba73002
Verdict: Malicious activity
Analysis date: November 22, 2023, 09:49:43
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, RAR self-extracting archive
MD5:

1AF3FDEBFBAB3E247FEB588AEA64DD64

SHA1:

D557A8978877199BAFE2E7BAAC63ADAB17BED05D

SHA256:

9CF96FDDF474EDA80F2B4C09F8EF19443CF6768429819E4CBA7B869291B7B8B5

SSDEEP:

6144:h8U2qy6rRZb7jxGYXDFJmWM93dYlGAGs:5zy6rRxEwJmdR+6s

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Drops the executable file immediately after the start

      • CH341SER.EXE (PID: 3448)
      • drvinst.exe (PID: 3584)
      • SETUP.EXE (PID: 3464)

    • Creates a writable file in the system directory

      • drvinst.exe (PID: 3584)
      • SETUP.EXE (PID: 3464)

  • SUSPICIOUS

    • Drops a system driver (possible attempt to evade defenses)

      • CH341SER.EXE (PID: 3448)
      • SETUP.EXE (PID: 3464)
      • drvinst.exe (PID: 3584)

    • Reads the Internet Settings

      • CH341SER.EXE (PID: 3448)

    • Creates files in the driver directory

      • SETUP.EXE (PID: 3464)
      • drvinst.exe (PID: 3584)

    • Checks Windows Trust Settings

      • drvinst.exe (PID: 3584)

  • INFO

    • Reads the computer name

      • CH341SER.EXE (PID: 3448)
      • SETUP.EXE (PID: 3464)
      • drvinst.exe (PID: 3584)

    • Checks supported languages

      • CH341SER.EXE (PID: 3448)
      • SETUP.EXE (PID: 3464)
      • drvinst.exe (PID: 3584)

    • Reads the machine GUID from the registry

      • SETUP.EXE (PID: 3464)
      • drvinst.exe (PID: 3584)

    • Create files in a temporary directory

      • SETUP.EXE (PID: 3464)

    • Manual execution by a user

      • WINWORD.EXE (PID: 3880)
      • WINWORD.EXE (PID: 4012)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | WinRAR Self Extracting archive (94.3)
.scr | Windows screen saver (2.3)
.dll | Win32 Dynamic Link Library (generic) (1.1)
.exe | Win32 Executable (generic) (0.8)
.exe | Win32 Executable Watcom C++ (generic) (0.4)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2007:05:22 06:59:14+02:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 5
CodeSize: 81920
InitializedDataSize: 22016
UninitializedDataSize: -
EntryPoint: 0x1000
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
45
Monitored processes
6
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start ch341ser.exe no specs setup.exe no specs setup.exe drvinst.exe no specs winword.exe no specs winword.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3204"C:\WCH.CN\CH341SER\SETUP.EXE" C:\WCH.CN\CH341SER\SETUP.EXE—CH341SER.EXE
User:
admin
Integrity Level:
MEDIUM
Description:
EXE For Driver Installation
Exit code:
3221226540
Version:
1, 6, 8, 0
Modules
Images
c:\wch.cn\ch341ser\setup.exe
c:\windows\system32\ntdll.dll
3448"C:\Users\admin\AppData\Local\Temp\CH341SER.EXE" C:\Users\admin\AppData\Local\Temp\CH341SER.EXE—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\ch341ser.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.24483_none_2b200f664577e14b\comctl32.dll
c:\windows\system32\gdi32.dll
3464"C:\WCH.CN\CH341SER\SETUP.EXE" C:\WCH.CN\CH341SER\SETUP.EXE
CH341SER.EXE
User:
admin
Integrity Level:
HIGH
Description:
EXE For Driver Installation
Exit code:
1
Version:
1, 6, 8, 0
Modules
Images
c:\wch.cn\ch341ser\setup.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.24483_none_2b200f664577e14b\comctl32.dll
3584DrvInst.exe "4" "0" "C:\Users\admin\AppData\Local\Temp\{332cfc87-73d9-1450-1aea-b63444e7036f}\CH341SER.INF" "0" "6dbd0d02f" "0000054C" "WinSta0\Default" "000004AC" "208" "C:\WCH.CN\CH341SER"C:\Windows\System32\drvinst.exe—svchost.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Driver Installation Module
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\drvinst.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\setupapi.dll
c:\windows\system32\cfgmgr32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
3880"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\Desktop\additiontrust.rtf"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Word
Exit code:
0
Version:
14.0.6024.1000
Modules
Images
c:\program files\microsoft office\office14\winword.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcr90.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.18837_none_ec86b8d6858ec0bc\comctl32.dll
4012"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\Desktop\bloodstandard.rtf"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Word
Exit code:
0
Version:
14.0.6024.1000
Modules
Images
c:\program files\microsoft office\office14\winword.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcr90.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.18837_none_ec86b8d6858ec0bc\comctl32.dll
Total events
8 162
Read events
7 765
Write events
98
Delete events
299

Modification events

(PID) Process:(3448) CH341SER.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(3448) CH341SER.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(3448) CH341SER.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(3448) CH341SER.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
(PID) Process:(3464) SETUP.EXEKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\17A\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(3584) drvinst.exeKey:HKEY_USERS\.DEFAULT\Software\Classes\Local Settings\MuiCache\17A\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(3880) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
On
(PID) Process:(3880) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1041
Value:
On
(PID) Process:(3880) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1046
Value:
On
(PID) Process:(3880) WINWORD.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1036
Value:
On
Executable files
49
Suspicious files
31
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
3448CH341SER.EXEC:\WCH.CN\CH341SER\CH341SER.INFbinary
MD5:0ECFFBA87B80F54F7016DA633DD9AB1C
SHA256:0CBD34F89B0D11B386E07A825FAB531706F86E9DA44DCC536AC7C98A6D22C383
3448CH341SER.EXEC:\WCH.CN\CH341SER\ch341SER.CATbinary
MD5:715693624013826D337E792ED86376AC
SHA256:585FCA8AB9C8A13222760D6BBAB62CE4069D24F73BD304D89C54B5298B9420BD
3448CH341SER.EXEC:\WCH.CN\CH341SER\CH341SER.SYSexecutable
MD5:A9FC675D0029A525335B106487C7D578
SHA256:50877BC8EA82BBAC833D25C9AC248E6FC9A240AB3C6D7E2C115667532C23676F
3448CH341SER.EXEC:\WCH.CN\CH341SER\SETUP.EXEexecutable
MD5:181F68547D52360FC142AC3ADC2436B7
SHA256:A8F306D5BA1A23F587283FD410313F50AC1AC5CE1268938B065130A0DC84C658
3464SETUP.EXEC:\Users\admin\AppData\Local\Temp\{332cfc87-73d9-1450-1aea-b63444e7036f}\CH341SER.SYSexecutable
MD5:A9FC675D0029A525335B106487C7D578
SHA256:50877BC8EA82BBAC833D25C9AC248E6FC9A240AB3C6D7E2C115667532C23676F
3464SETUP.EXEC:\Users\admin\AppData\Local\Temp\{332cfc87-73d9-1450-1aea-b63444e7036f}\CH341SER.INFbinary
MD5:0ECFFBA87B80F54F7016DA633DD9AB1C
SHA256:0CBD34F89B0D11B386E07A825FAB531706F86E9DA44DCC536AC7C98A6D22C383
3464SETUP.EXEC:\Users\admin\AppData\Local\Temp\{332cfc87-73d9-1450-1aea-b63444e7036f}\SET9726.tmpexecutable
MD5:A9FC675D0029A525335B106487C7D578
SHA256:50877BC8EA82BBAC833D25C9AC248E6FC9A240AB3C6D7E2C115667532C23676F
3464SETUP.EXEC:\Users\admin\AppData\Local\Temp\{332cfc87-73d9-1450-1aea-b63444e7036f}\CH341SER.CATbinary
MD5:715693624013826D337E792ED86376AC
SHA256:585FCA8AB9C8A13222760D6BBAB62CE4069D24F73BD304D89C54B5298B9420BD
3464SETUP.EXEC:\Windows\INF\setupapi.dev.logtext
MD5:0E821E5ED00ECCEF1A8F01437B539934
SHA256:5A44B28DD9F0E1F0622110A84B0E4F7CAF2FD535399BB1533E3C24FF8BF8220E
3464SETUP.EXEC:\Users\admin\AppData\Local\Temp\{332cfc87-73d9-1450-1aea-b63444e7036f}\SET9715.tmpbinary
MD5:0ECFFBA87B80F54F7016DA633DD9AB1C
SHA256:0CBD34F89B0D11B386E07A825FAB531706F86E9DA44DCC536AC7C98A6D22C383
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
4
DNS requests
0
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
—
—
224.0.0.252:5355
—
—
—
unknown
4
System
192.168.100.255:137
—
—
—
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
2588
svchost.exe
239.255.255.250:1900
—
—
—
whitelisted

DNS requests

No data

Threats

No threats detected
No debug info
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Reports
CH341SER.EXE