File name:

Endermanch@UserOverflow.exe

Full analysis: https://app.any.run/tasks/372edf1d-c65e-4e7e-9dae-7b49c29bd67c
Verdict: Malicious activity
Analysis date: October 07, 2020, 14:43:55
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: MS-DOS executable, MZ for MS-DOS
MD5:

533D78FDD538BBEEE31FB0B72A8CFB7C

SHA1:

CB0E46804E784525F5BECE40D51772BBDD9A5DC4

SHA256:

B7A4FCC7F474C091EDC09349AF5E53915D23F14071D78A3026C92C49D2467989

SSDEEP:

12288:BE6fwX07rBFHkzeG54YEp0l87vVGt+mj9kvoTvI8S:BE6QG9FqGp0M0D9kvo9S

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

    • Starts NET.EXE to view/add/change user profiles

      • Endermanch@UserOverflow.exe (PID: 3564)

  • SUSPICIOUS

    • Executed as Windows Service

      • taskhost.exe (PID: 2804)
      • fxssvc.exe (PID: 3164)
      • fxssvc.exe (PID: 1780)

    • Uses REG.EXE to modify Windows registry

      • cmd.exe (PID: 2184)

    • Starts Internet Explorer

      • rundll32.exe (PID: 2940)

    • Executed via COM

      • DllHost.exe (PID: 440)

    • Reads Internet Cache Settings

      • DllHost.exe (PID: 440)
      • taskhost.exe (PID: 2804)

    • Writes to a desktop.ini file (may be used to cloak folders)

      • ie4uinit.exe (PID: 2568)

    • Creates files in the Windows directory

      • fxssvc.exe (PID: 3164)

  • INFO

    • Manual execution by user

      • regedit.exe (PID: 1704)
      • rundll32.exe (PID: 2940)
      • cmd.exe (PID: 2184)
      • regedit.exe (PID: 952)
      • iexplore.exe (PID: 2904)
      • iexplore.exe (PID: 2764)
      • iexplore.exe (PID: 1336)
      • iexplore.exe (PID: 3400)
      • control.exe (PID: 3076)

    • Modifies the open verb of a shell class

      • rundll32.exe (PID: 2940)

    • Reads Internet Cache Settings

      • iexplore.exe (PID: 1580)
      • iexplore.exe (PID: 2904)
      • iexplore.exe (PID: 2764)
      • iexplore.exe (PID: 3400)
      • iexplore.exe (PID: 1336)

    • Changes internet zones settings

      • iexplore.exe (PID: 1580)
      • iexplore.exe (PID: 2904)
      • iexplore.exe (PID: 3400)
      • iexplore.exe (PID: 2764)
      • iexplore.exe (PID: 1336)

    • Application launched itself

      • iexplore.exe (PID: 1580)
      • iexplore.exe (PID: 2904)
      • iexplore.exe (PID: 2764)
      • iexplore.exe (PID: 1336)
      • iexplore.exe (PID: 3400)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable (generic) (52.9)
.exe | Generic Win/DOS Executable (23.5)
.exe | DOS Executable Generic (23.5)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2018:12:02 19:59:19+01:00
PEType: PE32
LinkerVersion: 2.25
CodeSize: 2047488
InitializedDataSize: 297984
UninitializedDataSize: -
EntryPoint: 0x24b357
OSVersion: 5
ImageVersion: -
SubsystemVersion: 5
Subsystem: Windows GUI
FileVersionNumber: 1.0.0.2
ProductVersionNumber: 1.0.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Windows, Latin1
CompanyName: Endermanch
FileDescription: A program overflowing user quantity in Windows
FileVersion: 1.0.0.2
InternalName: UserOverflow
LegalCopyright: Endermanch
OriginalFileName: useroverflow.exe
ProgramID: com.embarcadero.Project1
ProductName: UserOverflow
ProductVersion: 1.0.0.0

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 02-Dec-2018 18:59:19
Detected languages:
  • English - United States
CompanyName: Endermanch
FileDescription: A program overflowing user quantity in Windows
FileVersion: 1.0.0.2
InternalName: UserOverflow
LegalCopyright: Endermanch
OriginalFilename: useroverflow.exe
ProgramID: com.embarcadero.Project1
ProductName: UserOverflow
ProductVersion: 1.0.0.0

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0040
Pages in file: 0x0001
Relocations: 0x0000
Size of header: 0x0002
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: 0xB400
OEM information: 0xCD09
Address of NE header: 0x00000040

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 02-Dec-2018 18:59:19
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_BYTES_REVERSED_HI
  • IMAGE_FILE_BYTES_REVERSED_LO
  • IMAGE_FILE_DEBUG_STRIPPED
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.MPRESS1
0x00001000
0x0024A000
0x0008B800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.99969
.MPRESS2(\x0f
0x0024B000
0x00000F28
0x00001000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
5.76279
.rsrc
0x0024C000
0x00003C8C
0x00003E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
3.82154

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.26738
1695
UNKNOWN
English - United States
RT_MANIFEST
2
3.3271
296
UNKNOWN
English - United States
RT_ICON
3
2.36154
1640
UNKNOWN
English - United States
RT_ICON
4
3.00175
2216
UNKNOWN
English - United States
RT_ICON
5
2.56957
3752
UNKNOWN
English - United States
RT_ICON
6
3.40734
1384
UNKNOWN
English - United States
RT_ICON
7
0
308
UNKNOWN
English - United States
RT_CURSOR
4073
0
1220
UNKNOWN
UNKNOWN
RT_STRING
4074
0
2872
UNKNOWN
UNKNOWN
RT_STRING
4075
0
1624
UNKNOWN
UNKNOWN
RT_STRING

Imports

KERNEL32.DLL
advapi32.dll
comctl32.dll
gdi32.dll
msvcrt.dll
netapi32.dll
ole32.dll
oleaut32.dll
shell32.dll
user32.dll

Exports

Title
Ordinal
Address
dbkFCallWrapperAddr
1
0x0020263C
__dbk_fcall_wrapper
2
0x0001072C
TMethodImplementationIntercept
3
0x00061E64
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
95
Monitored processes
24
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start endermanch@useroverflow.exe no specs net.exe no specs net1.exe no specs regedit.exe no specs regedit.exe cmd.exe reg.exe no specs taskhost.exe no specs rundll32.exe no specs iexplore.exe no specs ie4uinit.exe no specs WinInetBrokerServer no specs iexplore.exe no specs iexplore.exe no specs iexplore.exe no specs iexplore.exe no specs iexplore.exe no specs iexplore.exe no specs iexplore.exe no specs fxssvc.exe no specs fxssvc.exe no specs iexplore.exe no specs iexplore.exe no specs control.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
440C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}C:\Windows\system32\DllHost.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
COM Surrogate
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\dllhost.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
952"C:\Windows\regedit.exe" C:\Windows\regedit.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Registry Editor
Exit code:
3221226540
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\regedit.exe
c:\systemroot\system32\ntdll.dll
1336"C:\Program Files\Internet Explorer\iexplore.exe" C:\Program Files\Common Files\microsoft shared\IME14\SHARED\IMEKLMG.EXEC:\Program Files\Internet Explorer\iexplore.exe—Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Internet Explorer
Exit code:
1
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
1580"C:\Program Files\Internet Explorer\iexplore.exe" C:\Windows\System32\ie4uinit.exeC:\Program Files\Internet Explorer\iexplore.exe—rundll32.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Internet Explorer
Exit code:
1
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
1704"C:\Windows\regedit.exe" C:\Windows\regedit.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Registry Editor
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\regedit.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\gdi32.dll
c:\windows\system32\user32.dll
1780C:\Windows\system32\fxssvc.exeC:\Windows\system32\fxssvc.exe—services.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Fax Service
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\fxssvc.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\pcwum.dll
c:\windows\system32\version.dll
2000"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:3400 CREDAT:275457 /prefetch:2C:\Program Files\Internet Explorer\iexplore.exe—iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
2064reg delete HKcrC:\Windows\system32\reg.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Registry Console Tool
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\reg.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
2184"C:\Windows\System32\cmd.exe" C:\Windows\System32\cmd.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2248C:\Windows\system32\net1 user user1 /addC:\Windows\system32\net1.exe—net.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Net Command
Exit code:
2
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\net1.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\dsrole.dll
c:\windows\system32\netutils.dll
Total events
92 193
Read events
855
Write events
236
Delete events
91 102

Modification events

(PID) Process:(3564) Endermanch@UserOverflow.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(3564) Endermanch@UserOverflow.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(2064) reg.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\OpenWithList\Excel.exe
Operation:delete keyName:(default)
Value:
(PID) Process:(2064) reg.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\OpenWithList\IExplore.exe
Operation:delete keyName:(default)
Value:
(PID) Process:(2064) reg.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\OpenWithList\MSPaint.exe
Operation:delete keyName:(default)
Value:
(PID) Process:(2064) reg.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\OpenWithList\notepad.exe
Operation:delete keyName:(default)
Value:
(PID) Process:(2064) reg.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\OpenWithList\Winword.exe
Operation:delete keyName:(default)
Value:
(PID) Process:(2064) reg.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\OpenWithList\WordPad.exe
Operation:delete keyName:(default)
Value:
(PID) Process:(2064) reg.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\OpenWithList
Operation:delete keyName:(default)
Value:
(PID) Process:(2064) reg.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\shell\removeproperties\DropTarget
Operation:delete keyName:(default)
Value:
Executable files
0
Suspicious files
4
Text files
1
Unknown types
1

Dropped files

PID
Process
Filename
Type
2804taskhost.exeC:\Users\Administrator\AppData\Local\Microsoft\Windows\WebCache\V01tmp.log —
MD5:—
SHA256:—
2804taskhost.exeC:\Users\Administrator\AppData\Local\Microsoft\Windows\WebCache\V01.log —
MD5:—
SHA256:—
2804taskhost.exeC:\Users\Administrator\AppData\Local\Microsoft\Windows\WebCache\WebCacheV01.dat —
MD5:—
SHA256:—
1580iexplore.exeC:\Users\ADMINI~1\AppData\Local\Temp\~DF5BB8DB4E86670B64.TMP —
MD5:—
SHA256:—
2904iexplore.exeC:\Users\ADMINI~1\AppData\Local\Temp\~DFD203232DC70B60B8.TMP —
MD5:—
SHA256:—
2904iexplore.exeC:\Users\Administrator\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{CD4A5967-08AB-11EB-9486-12A9866C77DE}.dat —
MD5:—
SHA256:—
2764iexplore.exeC:\Users\ADMINI~1\AppData\Local\Temp\~DF177388F398AE92BA.TMP —
MD5:—
SHA256:—
2764iexplore.exeC:\Users\Administrator\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{CE98229F-08AB-11EB-9486-12A9866C77DE}.dat —
MD5:—
SHA256:—
2568ie4uinit.exeC:\Users\Administrator\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\Launch Internet Explorer Browser.lnklnk
MD5:—
SHA256:—
2804taskhost.exeC:\Users\Administrator\AppData\Local\Microsoft\Windows\WebCache\V01.chkbinary
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
1
Threats
0

HTTP requests

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

Connections

No data

DNS requests

Domain
IP
Reputation
go.microsoft.com
  • 104.108.39.131
whitelisted

Threats

No threats detected
No debug info
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Reports
Endermanch@UserOverflow.exe