| File name: | 0FF1C3 2022 - by Diekrolo.rar |
| Full analysis: | https://app.any.run/tasks/b6cf150d-6c4b-4ede-b7ff-f2861433614e |
| Verdict: | Malicious activity |
| Analysis date: | March 22, 2024, 15:31:25 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-rar |
| File info: | RAR archive data, v5 |
| MD5: | 4C8A417BBAD244C232332F496DF87AC3 |
| SHA1: | E244B243D71517B1040C7A38FB3528005233F8C7 |
| SHA256: | 1A9E29A335B77226168D360AEBA6CDDF7624A6E3D5E57F191113D3BE3DE2F7E4 |
| SSDEEP: | 196608:YbFJuGasTuE2o38nuRodHzUFehlJ+VLclTgJ2dMFzPENPp9TRyOmxO2736fAljy:YbvuGasBVhodHze2wVLclTXd8jexLP/r |
MALICIOUS
Drops the executable file immediately after the start
- OInstall.exe (PID: 2832)
SUSPICIOUS
Process drops legitimate windows executable
- WinRAR.exe (PID: 1836)
- OInstall.exe (PID: 2832)
Executable content was dropped or overwritten
- OInstall.exe (PID: 2832)
Uses REG/REGEDIT.EXE to modify registry
- OInstall.exe (PID: 2832)
Starts POWERSHELL.EXE for commands execution
- OInstall.exe (PID: 2832)
Probably download files using WebClient
- OInstall.exe (PID: 2832)
Reads the Internet Settings
- powershell.exe (PID: 2576)
- powershell.exe (PID: 764)
The Powershell connects to the Internet
- powershell.exe (PID: 2576)
- powershell.exe (PID: 764)
Unusual connection from system programs
- powershell.exe (PID: 2576)
- powershell.exe (PID: 764)
INFO
Executable content was dropped or overwritten
- WinRAR.exe (PID: 1836)
Checks supported languages
- OInstall.exe (PID: 2832)
Reads the computer name
- OInstall.exe (PID: 2832)
Reads Environment values
- OInstall.exe (PID: 2832)
Manual execution by a user
- OInstall.exe (PID: 2832)
- OInstall.exe (PID: 796)
Drops the executable file immediately after the start
- WinRAR.exe (PID: 1836)
Create files in a temporary directory
- expand.exe (PID: 3496)
Creates files in the program directory
- OInstall.exe (PID: 2832)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .rar | | | RAR compressed archive (v5.0) (61.5) |
|---|---|---|
| .rar | | | RAR compressed archive (gen) (38.4) |
Total processes
52
Monitored processes
8
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 764 | "powershell" -command "& { (New-Object Net.WebClient).DownloadFile('http://officecdn.microsoft.com/pr/5030841d-c919-4594-8d2d-84ae4f96e58e/Office/Data/16.0.14332.20651/i320.cab', 'C:\Users\admin\AppData\Local\Temp\over656502\i320.cab') }" | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | OInstall.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows PowerShell Exit code: 0 Version: 10.0.14409.1005 (rs1_srvoob.161208-1155) Modules
| |||||||||||||||
| 796 | "C:\Users\admin\Desktop\0FF1C3 2021 - by Diekrolo\M1CR0S0F7 0FF1C3 2021 (LICENCIA PERPETUA) -S.M\OInstall.exe" | C:\Users\admin\Desktop\0FF1C3 2021 - by Diekrolo\M1CR0S0F7 0FF1C3 2021 (LICENCIA PERPETUA) -S.M\OInstall.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: Office 2013-2021 C2R Install Exit code: 3221226540 Modules
| |||||||||||||||
| 1556 | "C:\Windows\System32\reg.exe" add HKLM\Software\Policies\Microsoft\Office\16.0\Common\OfficeUpdate /v UpdateBranch /d PerpetualVL2021 /f | C:\Windows\System32\reg.exe | — | OInstall.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1836 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\0FF1C3 2022 - by Diekrolo.rar" | 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
| |||||||||||||||
| 2172 | "powershell" -command "& { Get-Content C:\Users\admin\AppData\Local\Temp\over656502\VersionDescriptor.xml | Set-Content -Encoding ASCII v32.txt } | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | — | OInstall.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows PowerShell Exit code: 0 Version: 10.0.14409.1005 (rs1_srvoob.161208-1155) Modules
| |||||||||||||||
| 2576 | "powershell" -command "& { (New-Object Net.WebClient).DownloadFile('http://officecdn.microsoft.com/pr/5030841d-c919-4594-8d2d-84ae4f96e58e/Office/Data/v32.cab', 'C:\Users\admin\AppData\Local\Temp\over656502\v32.cab') }" | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | OInstall.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows PowerShell Exit code: 0 Version: 10.0.14409.1005 (rs1_srvoob.161208-1155) Modules
| |||||||||||||||
| 2832 | "C:\Users\admin\Desktop\0FF1C3 2021 - by Diekrolo\M1CR0S0F7 0FF1C3 2021 (LICENCIA PERPETUA) -S.M\OInstall.exe" | C:\Users\admin\Desktop\0FF1C3 2021 - by Diekrolo\M1CR0S0F7 0FF1C3 2021 (LICENCIA PERPETUA) -S.M\OInstall.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: HIGH Description: Office 2013-2021 C2R Install Exit code: 0 Modules
| |||||||||||||||
| 3496 | "expand" v32.cab -F:VersionDescriptor.xml C:\Users\admin\AppData\Local\Temp\over656502 | C:\Windows\System32\expand.exe | — | OInstall.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: LZ Expansion Utility Exit code: 0 Version: 6.1.7601.24535 (win7sp1_ldr_escrow.191105-1059) Modules
| |||||||||||||||
Total events
10 852
Read events
10 837
Write events
15
Delete events
0
Modification events
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtBMP |
Value: | |||
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes |
| Operation: | write | Name: | ShellExtIcon |
Value: | |||
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 3 |
Value: C:\Users\admin\Desktop\phacker.zip | |||
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\Win7-KB3191566-x86.zip | |||
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\curl-8.5.0_1-win32-mingw.zip | |||
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\AppData\Local\Temp\0FF1C3 2022 - by Diekrolo.rar | |||
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (1836) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
Executable files
6
Suspicious files
7
Text files
7
Unknown types
2
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1836 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DRb1836.48644\0FF1C3 2021 - by Diekrolo\M1CR0S0F7 0FF1C3 2021 (LICENCIA PERPETUA) -S.M\autorun.inf | binary | |
MD5:EAD673A9A0A0A2C61FCFD638E5F7504B | SHA256:552BE66ED2C0B22D4A413CA262C95E356292813F9F44D1F719D0EB8A70997E6D | |||
| 1836 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DRb1836.48644\0FF1C3 2021 - by Diekrolo\M1CR0S0F7 0FF1C3 2021 (LICENCIA PERPETUA) -S.M\files\Configure.xml | text | |
MD5:B474E3044557BCC7234CCECCC11CC583 | SHA256:830443E7A9664F6E3C4CEE8537DCAF6119300DF6DAE475C6AC28107267518AE9 | |||
| 1836 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DRb1836.48644\0FF1C3 2021 - by Diekrolo\M1CR0S0F7 0FF1C3 2021 (LICENCIA PERPETUA) -S.M\files\Uninstall.xml | text | |
MD5:364F86F97324EA82FE0D142CD01CF6DD | SHA256:09D5B42140BAB13165BA97FBD0E77792304C3C93555BE02C3DCE21A7A69C66DD | |||
| 3496 | expand.exe | C:\Users\admin\AppData\Local\Temp\over656502\VersionDescriptor.xml | xml | |
MD5:F5555F5AA75FC1CA091C8EB4811BB415 | SHA256:F4D9B60880A0BF4CEFA7BB881C14E5EA58A433AFAEBFBE518F19C220561174A2 | |||
| 2576 | powershell.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive | dbf | |
MD5:446DD1CF97EABA21CF14D03AEBC79F27 | SHA256:A7DE5177C68A64BD48B36D49E2853799F4EBCFA8E4761F7CC472F333DC5F65CF | |||
| 2576 | powershell.exe | C:\Users\admin\AppData\Local\Temp\3wu2klp0.ldm.ps1 | binary | |
MD5:C4CA4238A0B923820DCC509A6F75849B | SHA256:— | |||
| 3496 | expand.exe | C:\Windows\Logs\DPX\setupact.log | text | |
MD5:097115565354B633813A534C51BFFC6C | SHA256:066EFA2F5E59F86860A7A648FBAA85195162EE7CA50CA19734D9930741B55841 | |||
| 1836 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DRb1836.48644\0FF1C3 2021 - by Diekrolo\M1CR0S0F7 0FF1C3 2021 (LICENCIA PERPETUA) -S.M\OInstall.exe | executable | |
MD5:EBC58647462AD9C76395EF451064D115 | SHA256:414155BF11893EC64BA0F4FFB7DE92885090845A0761CF8F6743462AA5991D5E | |||
| 2172 | powershell.exe | C:\Users\admin\AppData\Local\Temp\chldxd2h.qpd.ps1 | binary | |
MD5:C4CA4238A0B923820DCC509A6F75849B | SHA256:— | |||
| 764 | powershell.exe | C:\Users\admin\AppData\Local\Temp\mcqhko0d.dsi.ps1 | binary | |
MD5:C4CA4238A0B923820DCC509A6F75849B | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
6
DNS requests
1
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
764 | powershell.exe | GET | — | 72.247.154.195:80 | http://officecdn.microsoft.com/pr/5030841d-c919-4594-8d2d-84ae4f96e58e/Office/Data/16.0.14332.20651/i320.cab | unknown | — | — | unknown |
2576 | powershell.exe | GET | 200 | 72.247.154.195:80 | http://officecdn.microsoft.com/pr/5030841d-c919-4594-8d2d-84ae4f96e58e/Office/Data/v32.cab | unknown | compressed | 10.9 Kb | unknown |
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 | 192.168.100.255:137 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | unknown |
— | — | 224.0.0.252:5355 | — | — | — | unknown |
2576 | powershell.exe | 72.247.154.195:80 | officecdn.microsoft.com | Akamai International B.V. | DE | unknown |
764 | powershell.exe | 72.247.154.195:80 | officecdn.microsoft.com | Akamai International B.V. | DE | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
officecdn.microsoft.com |
| whitelisted |