File name:

Server.exe

Full analysis: https://app.any.run/tasks/eeb451d4-6a76-40f6-8f92-e6ebb6c896c9
Verdict: Malicious activity
Analysis date: November 29, 2020, 20:36:23
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

E004104A9F79FC64C1B66183852C61F8

SHA1:

E4A3F7CC39915297729F3D14BE14D30890187000

SHA256:

825BCAE1AD11C3712912E2F8B2C62BF1DB0A11DBD016DF9584124017E87CCFE3

SSDEEP:

384:qeL8CT0i9NdTe/kCOyU7NuvLmDPM+7rAF+rMRTyN/0L+EcoinblneHQM3epzXINn:3LhT1CFU7NuKbMgrM+rMRa8NuaHt

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 executable file immediately after starts

      • msdt.exe (PID: 3716)

    • Starts Visual C# compiler

      • sdiagnhost.exe (PID: 3700)

  • SUSPICIOUS

    • Uses NETSH.EXE for network configuration

      • Server.exe (PID: 2708)

    • Executable content was dropped or overwritten

      • msdt.exe (PID: 3716)

    • Drops a file with too old compile date

      • msdt.exe (PID: 3716)

    • Executed via COM

      • sdiagnhost.exe (PID: 3700)

    • Uses IPCONFIG.EXE to discover IP address

      • sdiagnhost.exe (PID: 3700)

  • INFO

    • Creates files in the user directory

      • WINWORD.EXE (PID: 2724)

    • Manual execution by user

      • msdt.exe (PID: 3716)
      • WINWORD.EXE (PID: 2724)

    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 2724)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (56.7)
.exe | Win64 Executable (generic) (21.3)
.scr | Windows screen saver (10.1)
.dll | Win32 Dynamic Link Library (generic) (5)
.exe | Win32 Executable (generic) (3.4)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2020:11:29 21:34:19+01:00
PEType: PE32
LinkerVersion: 8
CodeSize: 35840
InitializedDataSize: 1536
UninitializedDataSize: -
EntryPoint: 0xabae
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 29-Nov-2020 20:34:19

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 29-Nov-2020 20:34:19
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x00008BB4
0x00008C00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.60453
.rsrc
0x0000C000
0x00000240
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.96877
.reloc
0x0000E000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.0815394

Resources

Title
Entropy
Size
Codepage
Language
Type
1
4.96801
487
Latin 1 / Western European
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
47
Monitored processes
10
Malicious processes
0
Suspicious processes
2

Behavior graph

Click at the process to see the details
start server.exe netsh.exe no specs winword.exe no specs msdt.exe sdiagnhost.exe no specs csc.exe cvtres.exe no specs ipconfig.exe no specs route.exe no specs makecab.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
600"C:\Windows\system32\ROUTE.EXE" printC:\Windows\system32\ROUTE.EXE—sdiagnhost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
TCP/IP Route Command
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\route.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\iphlpapi.dll
c:\windows\system32\nsi.dll
c:\windows\system32\winnsi.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
1332netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLEC:\Windows\system32\netsh.exe—Server.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Network Command Shell
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\netsh.exe
c:\systemroot\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\system32\credui.dll
c:\windows\system32\user32.dll
2288C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES6529.tmp" "c:\Users\admin\AppData\Local\Temp\CSC6528.tmp"C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe—csc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
8.00.50727.4940 (Win7SP1.050727-5400)
Modules
Images
c:\windows\microsoft.net\framework\v2.0.50727\cvtres.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.4940_none_d08cc06a442b34fc\msvcr80.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\cryptsp.dll
2556"C:\Windows\system32\makecab.exe" /f NetworkConfiguration.ddfC:\Windows\system32\makecab.exe—sdiagnhost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Cabinet Maker
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\makecab.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\version.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2708"C:\Users\admin\AppData\Local\Temp\Server.exe" C:\Users\admin\AppData\Local\Temp\Server.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\server.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll
2724"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\Desktop\positionpercent.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:\systemroot\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_5.82.7601.17514_none_ec83dffa859149af\comctl32.dll
3092"C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\x5i2xm7-.cmdline"C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe
sdiagnhost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual C# Command Line Compiler
Exit code:
0
Version:
8.0.50727.4927 (NetFXspW7.050727-4900)
Modules
Images
c:\windows\microsoft.net\framework\v2.0.50727\csc.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.4940_none_d08cc06a442b34fc\msvcr80.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ole32.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
3148"C:\Windows\system32\ipconfig.exe" /allC:\Windows\system32\ipconfig.exe—sdiagnhost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
IP Configuration Utility
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\ipconfig.exe
c:\systemroot\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\system32\dnsapi.dll
c:\windows\system32\ws2_32.dll
3700C:\Windows\System32\sdiagnhost.exe -EmbeddingC:\Windows\System32\sdiagnhost.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Scripted Diagnostics Native Host
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\sdiagnhost.exe
c:\systemroot\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\system32\ole32.dll
c:\windows\system32\gdi32.dll
3716"C:\Windows\System32\msdt.exe" -skip TRUE -path C:\Windows\diagnostics\system\networking -ep NetworkDiagnosticsPNIC:\Windows\System32\msdt.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Diagnostics Troubleshooting Wizard
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msdt.exe
c:\systemroot\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\system32\user32.dll
c:\windows\system32\gdi32.dll
Total events
1 291
Read events
903
Write events
241
Delete events
147

Modification events

(PID) Process:(2708) Server.exeKey:HKEY_CURRENT_USER
Operation:writeName:di
Value:
!
(PID) Process:(1332) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(1332) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\dhcpqec.dll,-100
Value:
DHCP Quarantine Enforcement Client
(PID) Process:(1332) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\dhcpqec.dll,-101
Value:
Provides DHCP based enforcement for NAP
(PID) Process:(1332) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\dhcpqec.dll,-103
Value:
1.0
(PID) Process:(1332) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\dhcpqec.dll,-102
Value:
Microsoft Corporation
(PID) Process:(1332) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\napipsec.dll,-1
Value:
IPsec Relying Party
(PID) Process:(1332) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\napipsec.dll,-2
Value:
Provides IPsec based enforcement for Network Access Protection
(PID) Process:(1332) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\napipsec.dll,-4
Value:
1.0
(PID) Process:(1332) netsh.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:@%SystemRoot%\system32\napipsec.dll,-3
Value:
Microsoft Corporation
Executable files
2
Suspicious files
1
Text files
14
Unknown types
6

Dropped files

PID
Process
Filename
Type
2724WINWORD.EXEC:\Users\admin\AppData\Local\Temp\CVR38F8.tmp.cvr —
MD5:—
SHA256:—
2724WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{AA6CF14A-3E71-4B42-9880-8481E2F82B29}.tmp —
MD5:—
SHA256:—
2724WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{F394F89D-161B-4FCD-B6F5-084ECF16ED3E}.tmp —
MD5:—
SHA256:—
2724WINWORD.EXEC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRF{0B344C31-BA4F-4E55-83E6-5BA9D0C4A99C}.tmp —
MD5:—
SHA256:—
3700sdiagnhost.exeC:\Users\admin\AppData\Local\Temp\x5i2xm7-.0.cs —
MD5:—
SHA256:—
3700sdiagnhost.exeC:\Users\admin\AppData\Local\Temp\x5i2xm7-.cmdline —
MD5:—
SHA256:—
3092csc.exeC:\Users\admin\AppData\Local\Temp\CSC6528.tmp —
MD5:—
SHA256:—
3092csc.exeC:\Users\admin\AppData\Local\Temp\x5i2xm7-.pdb —
MD5:—
SHA256:—
2288cvtres.exeC:\Users\admin\AppData\Local\Temp\RES6529.tmp —
MD5:—
SHA256:—
3092csc.exeC:\Users\admin\AppData\Local\Temp\x5i2xm7-.dll —
MD5:—
SHA256:—
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
4
Threats
2

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
2708
Server.exe
3.22.15.135:5552
4.tcp.ngrok.io
—
US
malicious
828
svchost.exe
2.18.233.62:80
www.microsoft.com
Akamai International B.V.
—
whitelisted

DNS requests

Domain
IP
Reputation
4.tcp.ngrok.io
  • 3.22.15.135
malicious
dns.msftncsi.com
  • 131.107.255.255
shared
www.microsoft.com
  • 2.18.233.62
whitelisted

Threats

PID
Process
Class
Message
1044
svchost.exe
Potential Corporate Privacy Violation
ET POLICY DNS Query to a *.ngrok domain (ngrok.io)
1 ETPRO signatures available at the full report
Process
Message
csc.exe
*** HR originated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\copyout.cpp, line 1302
csc.exe
*** HR propagated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\enumidentityattribute.cpp, line 144
csc.exe
*** HR originated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\copyout.cpp, line 1302
csc.exe
*** HR propagated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\enumidentityattribute.cpp, line 144
csc.exe
*** HR originated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\copyout.cpp, line 1302
csc.exe
*** HR propagated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\enumidentityattribute.cpp, line 144
csc.exe
*** HR propagated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\enumidentityattribute.cpp, line 144
csc.exe
*** HR propagated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\enumidentityattribute.cpp, line 144
csc.exe
*** HR originated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\copyout.cpp, line 1302
csc.exe
*** HR propagated: -2147024774 *** Source File: d:\iso_whid\x86fre\base\isolation\com\enumidentityattribute.cpp, line 144
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Reports
Server.exe