download:

optiver.zip

Full analysis: https://app.any.run/tasks/a87df32f-3962-4048-9f5d-5d3052f03e05
Verdict: Malicious activity
Analysis date: June 27, 2022, 13:26:06
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
evasion
Indicators:
MIME: application/zip
File info: Zip archive data, at least v2.0 to extract
MD5:

C1B12817CC4B9B7A39283C633C8B2260

SHA1:

31C7C375368EEBE093259B9AD70B7D7F0535FA56

SHA256:

811933E8D44DFB8288249343F892BF4477017AFCE4B36ABB276A65CDAC49FCC0

SSDEEP:

384:wMLPr+oIU6PIRnKD7cWR2jVKI7Hx986CCSBzzCEgmFdWeI6cZpR0wL9Md:wMLPicMIWsjVKWHD86CCSBzeE1dWeI5O

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

    • Application was dropped or rewritten from another process

      • optiver.exe (PID: 3844)

    • Drops executable file immediately after starts

      • WinRAR.exe (PID: 2568)

  • SUSPICIOUS

    • Checks supported languages

      • WinRAR.exe (PID: 2568)
      • optiver.exe (PID: 3844)

    • Reads the computer name

      • WinRAR.exe (PID: 2568)
      • optiver.exe (PID: 3844)

    • Drops a file with a compile date too recent

      • WinRAR.exe (PID: 2568)

    • Executable content was dropped or overwritten

      • WinRAR.exe (PID: 2568)

    • Reads Environment values

      • optiver.exe (PID: 3844)

    • Reads Microsoft Outlook installation path

      • optiver.exe (PID: 3844)

    • Checks for external IP

      • optiver.exe (PID: 3844)

  • INFO

    • Reads settings of System Certificates

      • optiver.exe (PID: 3844)

    • Checks Windows Trust Settings

      • optiver.exe (PID: 3844)

    • Manual execution by user

      • optiver.exe (PID: 3844)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.zip | ZIP compressed archive (100)

EXIF

ZIP

ZipFileName: optiver.exe
ZipUncompressedSize: 58880
ZipCompressedSize: 20051
ZipCRC: 0x3d1fb25a
ZipModifyDate: 2022:06:03 14:26:21
ZipCompression: Deflated
ZipBitFlag: -
ZipRequiredVersion: 20
No data.
screenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
36
Monitored processes
2
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start winrar.exe optiver.exe

Process information

PID
CMD
Path
Indicators
Parent process
2568"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\optiver.zip"C:\Program Files\WinRAR\WinRAR.exe
Explorer.EXE
User:
admin
Company:
Alexander Roshal
Integrity Level:
MEDIUM
Description:
WinRAR archiver
Exit code:
0
Version:
5.91.0
Modules
Images
c:\program files\winrar\winrar.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\system32\comdlg32.dll
3844"C:\Users\admin\Desktop\optiver.exe" C:\Users\admin\Desktop\optiver.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Description:
Exit code:
0
Version:
1.0
Modules
Images
c:\users\admin\desktop\optiver.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
c:\windows\system32\rpcrt4.dll
Total events
4 905
Read events
4 850
Write events
55
Delete events
0

Modification events

(PID) Process:(2568) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtBMP
Value:
(PID) Process:(2568) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:writeName:ShellExtIcon
Value:
(PID) Process:(2568) WinRAR.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2568) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:2
Value:
C:\Users\admin\Desktop\virtio_ivshmem_master_build.zip
(PID) Process:(2568) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:1
Value:
C:\Users\admin\Desktop\Win7-KB3191566-x86.zip
(PID) Process:(2568) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:writeName:0
Value:
C:\Users\admin\AppData\Local\Temp\optiver.zip
(PID) Process:(2568) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:name
Value:
120
(PID) Process:(2568) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:size
Value:
80
(PID) Process:(2568) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:type
Value:
120
(PID) Process:(2568) WinRAR.exeKey:HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:writeName:mtime
Value:
100
Executable files
1
Suspicious files
2
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
3844optiver.exeC:\Users\admin\AppData\Local\Temp\qnw2zrgr.4rm.ps1binary
MD5:C4CA4238A0B923820DCC509A6F75849B
SHA256:—
2568WinRAR.exeC:\Users\admin\AppData\Local\Temp\Rar$DRa2568.3466\optiver.exeexecutable
MD5:325E44006268845412D2C2F44F743132
SHA256:8EE0EC83AF08A6A096CBC6452ECE8B066695142B6BE3242A10D161CF53EFAC50
3844optiver.exeC:\Users\admin\AppData\Local\Temp\z2w3xsju.13p.psm1binary
MD5:C4CA4238A0B923820DCC509A6F75849B
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
1
Threats
3

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3844
optiver.exe
GET
200
34.117.59.81:80
http://ifconfig.me/ip
US
text
13 b
shared
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3844
optiver.exe
34.117.59.81:80
ifconfig.me
—
US
whitelisted

DNS requests

Domain
IP
Reputation
ifconfig.me
  • 34.117.59.81
shared

Threats

PID
Process
Class
Message
3844
optiver.exe
Potential Corporate Privacy Violation
ET POLICY External IP Lookup Domain (ifconfig .me)
3844
optiver.exe
Potential Corporate Privacy Violation
AV POLICY Internal Host Retrieving External IP Address (ifconfig. me)
3844
optiver.exe
Not Suspicious Traffic
ET INFO Windows Powershell User-Agent Usage
No debug info
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Reports
optiver.zip