File name:

OInstall.exe

Full analysis: https://app.any.run/tasks/83cee305-0da0-45f8-8b49-f8b35606e9c6
Verdict: Malicious activity
Analysis date: October 05, 2023, 08:19:32
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, UPX compressed
MD5:

7CB8C00408DA25A7A9774D48EE5848A2

SHA1:

49EE5BBAFEF9B20BBBF3B9CDED16D7AAA9C18052

SHA256:

DAEB52896FED1ADC218E322A88285F9CBBA1891C81C517AD04AC059B292F85E2

SSDEEP:

98304:DNSIrYgH85aDZAYEOv9qrtRqIXHEaUlU1OMV7+IfvmaKDf1zBMcbXERZYlN7imhT:I4zQMNF7IhT4ekxp6W

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

      • OInstall.exe (PID: 3508)
      • files.dat (PID: 2792)

    • Application was dropped or rewritten from another process

      • files.dat (PID: 2792)

  • SUSPICIOUS

    • Process drops legitimate windows executable

      • OInstall.exe (PID: 3508)
      • files.dat (PID: 2792)

    • Drops 7-zip archiver for unpacking

      • OInstall.exe (PID: 3508)

    • Starts application with an unusual extension

      • cmd.exe (PID: 2036)

    • Starts CMD.EXE for commands execution

      • OInstall.exe (PID: 3508)

    • The process drops C-runtime libraries

      • files.dat (PID: 2792)

  • INFO

    • Reads the computer name

      • OInstall.exe (PID: 3508)

    • Checks supported languages

      • OInstall.exe (PID: 3508)
      • files.dat (PID: 2792)

    • Reads Environment values

      • OInstall.exe (PID: 3508)

    • The executable file from the user directory is run by the CMD process

      • files.dat (PID: 2792)

    • Create files in a temporary directory

      • files.dat (PID: 2792)
      • OInstall.exe (PID: 3508)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | UPX compressed Win32 Executable (76)
.exe | Win32 Executable (generic) (12.6)
.exe | Generic Win/DOS Executable (5.6)
.exe | DOS Executable Generic (5.6)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2019:01:07 04:22:16+01:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 2.5
CodeSize: 9834496
InitializedDataSize: 90112
UninitializedDataSize: 9330688
EntryPoint: 0x1247530
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 6.5.3.0
ProductVersionNumber: 6.5.3.0
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Unknown (0)
ObjectFileType: Unknown
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
ProductName: Office 2013-2016 C2R Install
FileDescription: Office 2013-2016 C2R Install
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
43
Monitored processes
5
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start oinstall.exe cmd.exe no specs cmd.exe no specs files.dat no specs oinstall.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2036"C:\Windows\System32\cmd.exe" /D /c files.dat -y -pkmsautoC:\Windows\System32\cmd.exe—OInstall.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\ntdll.dll
c:\windows\system32\cmd.exe
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\usp10.dll
c:\windows\system32\lpk.dll
2404"C:\Windows\System32\cmd.exe" /D /c copy C:\Windows\system32\Tasks\OInstall "C:\Windows\Temp\OInstall.tmp" /YC:\Windows\System32\cmd.exe—OInstall.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
1
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\windows\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
2484"C:\Users\admin\AppData\Local\Temp\OInstall.exe" C:\Users\admin\AppData\Local\Temp\OInstall.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Office 2013-2016 C2R Install
Exit code:
3221226540
Modules
Images
c:\users\admin\appdata\local\temp\oinstall.exe
c:\windows\system32\ntdll.dll
2792files.dat -y -pkmsautoC:\Users\admin\AppData\Local\Temp\files\files.dat—cmd.exe
User:
admin
Company:
Igor Pavlov
Integrity Level:
HIGH
Description:
7z Console SFX
Exit code:
0
Version:
9.20
Modules
Images
c:\users\admin\appdata\local\temp\files\files.dat
c:\windows\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\ole32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\usp10.dll
3508"C:\Users\admin\AppData\Local\Temp\OInstall.exe" C:\Users\admin\AppData\Local\Temp\OInstall.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Description:
Office 2013-2016 C2R Install
Exit code:
0
Modules
Images
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\ntdll.dll
c:\windows\system32\advapi32.dll
c:\users\admin\appdata\local\temp\oinstall.exe
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\user32.dll
Total events
104
Read events
104
Write events
0
Delete events
0

Modification events

No data
Executable files
6
Suspicious files
0
Text files
2
Unknown types
0

Dropped files

PID
Process
Filename
Type
2792files.datC:\Users\admin\AppData\Local\Temp\files\x86\cleanospp.exeexecutable
MD5:5FD363D52D04AC200CD24F3BCC903200
SHA256:3FDEFE2AD092A9A7FE0EDF0AC4DC2DE7E5B9CE6A0804F6511C06564194966CF9
2792files.datC:\Users\admin\AppData\Local\Temp\files\Uninstall.xmltext
MD5:364F86F97324EA82FE0D142CD01CF6DD
SHA256:09D5B42140BAB13165BA97FBD0E77792304C3C93555BE02C3DCE21A7A69C66DD
2792files.datC:\Users\admin\AppData\Local\Temp\files\x64\cleanospp.exeexecutable
MD5:162AB955CB2F002A73C1530AA796477F
SHA256:5CE462E5F34065FC878362BA58617FAB28C22D631B9D836DDDCF43FB1AD4DE6E
3508OInstall.exeC:\Users\admin\AppData\Local\Temp\files\files.datexecutable
MD5:55D21B2C272A5D6B9F54FA9ED82BF9EB
SHA256:7A1C82E264258470D14CA345EA1A9B6FC34FA19B393A92077A01BE5F1AD08F47
3508OInstall.exeC:\Users\admin\AppData\Local\Temp\files\Configure.xmltext
MD5:AC6BE84084E31DBB0E08D188B6C86EC8
SHA256:1879F7DE537C2AA70292C61EBEF9C6477D36E25B2E6A639E318B159E0A22B0FC
2792files.datC:\Users\admin\AppData\Local\Temp\files\x86\msvcr100.dllexecutable
MD5:BF38660A9125935658CFA3E53FDC7D65
SHA256:60C06E0FA4449314DA3A0A87C1A9D9577DF99226F943637E06F61188E5862EFA
3508OInstall.exeC:\Users\admin\AppData\Local\Temp\files\setup.exeexecutable
MD5:B374FA0E7E34B9CE9C142FE80E1EFADE
SHA256:A87105965530799BABBB71A1FD52DBD7CDDEE71C40E2C37576235D156FF02027
2792files.datC:\Users\admin\AppData\Local\Temp\files\x64\msvcr100.dllexecutable
MD5:DF3CA8D16BDED6A54977B30E66864D33
SHA256:1D1A1AE540BA132F998D60D3622F0297B6E86AE399332C3B47462D7C0F560A36
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
3
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
4
System
192.168.100.255:138
—
—
—
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
2656
svchost.exe
239.255.255.250:1900
—
—
—
whitelisted

DNS requests

No data

Threats

No threats detected
No debug info
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Reports
OInstall.exe