| File name: | Office Exploit Builder.exe |
| Full analysis: | https://app.any.run/tasks/0f6a0eb8-01e1-4044-93a7-a90cc0c67520 |
| Verdict: | Malicious activity |
| Analysis date: | February 10, 2021, 16:02:46 |
| 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: | 78CF3331470873F42D662EFAD2EB64D8 |
| SHA1: | DCB9E84753F80EEBCA89B199937C5742AF5B57D3 |
| SHA256: | 6C2CEE928DA960619A18ED576C1F2370C2C0A9C13021071687EE0674B376873C |
| SSDEEP: | 49152:W07uT/T+Q7bcFhk+qNz7+MXFD0T2E/uB/pPEDq6FbJnvmRRitiwpPs7UrvSo3Y9i:WTy |
MALICIOUS
Drops executable file immediately after starts
- Installer.exe (PID: 2576)
- Installer.tmp (PID: 2036)
- The Silent Office Exploit.exe (PID: 2464)
Uses Task Scheduler to run other applications
- cmd.exe (PID: 3868)
Loads the Task Scheduler COM API
- schtasks.exe (PID: 2204)
Writes to a start menu file
- xcopy.exe (PID: 1760)
Runs PING.EXE for delay simulation
- cmd.exe (PID: 3904)
Application was dropped or rewritten from another process
- Installer.exe (PID: 2576)
- The Silent Office Exploit.exe (PID: 2464)
- quiet.exe (PID: 2212)
Loads dropped or rewritten executable
- The Silent Office Exploit.exe (PID: 2464)
SUSPICIOUS
Drops a file with too old compile date
- Office Exploit Builder.exe (PID: 752)
- Installer.exe (PID: 2576)
- Installer.tmp (PID: 2036)
- The Silent Office Exploit.exe (PID: 2464)
Executable content was dropped or overwritten
- Office Exploit Builder.exe (PID: 752)
- Installer.exe (PID: 2576)
- The Silent Office Exploit.exe (PID: 2464)
- Installer.tmp (PID: 2036)
Starts CMD.EXE for commands execution
- Installer.tmp (PID: 2036)
- quiet.exe (PID: 2212)
Creates files in the user directory
- Installer.tmp (PID: 2036)
- xcopy.exe (PID: 1760)
INFO
Application was dropped or rewritten from another process
- Installer.tmp (PID: 2036)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (41) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (36.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.6) |
| .exe | | | Win32 Executable (generic) (5.9) |
| .exe | | | Win16/32 Executable Delphi generic (2.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2018:01:03 22:31:37+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 11 |
| CodeSize: | 80896 |
| InitializedDataSize: | 152064 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x4000a |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| FileDescription: | - |
| FileVersion: | - |
| InternalName: | - |
| LegalCopyright: | - |
| OriginalFileName: | - |
| ProductName: | - |
| ProductVersion: | - |
| AssemblyVersion: | - |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 03-Jan-2018 21:31:37 |
| FileDescription: | - |
| FileVersion: | - |
| InternalName: | - |
| LegalCopyright: | - |
| OriginalFilename: | - |
| ProductName: | - |
| ProductVersion: | - |
| Assembly Version: | - |
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: | 5 |
| Time date stamp: | 03-Jan-2018 21:31:37 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
d2lX1@\x09\x05\xd4I\x02 | 0x00002000 | 0x000249D4 | 0x00024A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.9987 |
.text | 0x00028000 | 0x000138B8 | 0x00013A00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.45187 |
.rsrc | 0x0003C000 | 0x000004A8 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.60981 |
.reloc | 0x0003E000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0776332 |
0x00040000 | 0x00000010 | 0x00000200 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 0.122276 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
46
Monitored processes
11
Malicious processes
4
Suspicious processes
2
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 752 | "C:\Users\admin\AppData\Local\Temp\Office Exploit Builder.exe" | C:\Users\admin\AppData\Local\Temp\Office Exploit Builder.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 4294967295 Modules
| |||||||||||||||
| 1760 | xcopy /s /y /k /f "C:\Users\admin\AppData\Roaming\Avira Antivir\Check for updates.bat" "C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup" | C:\Windows\system32\xcopy.exe | cmd.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Extended Copy Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2036 | "C:\Users\admin\AppData\Local\Temp\is-Q7D5B.tmp\Installer.tmp" /SL5="$60130,374260,57856,C:\Users\admin\AppData\Local\Temp\Installer.exe" | C:\Users\admin\AppData\Local\Temp\is-Q7D5B.tmp\Installer.tmp | Installer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Setup/Uninstall Exit code: 0 Version: 51.52.0.0 Modules
| |||||||||||||||
| 2204 | Schtasks.exe /create /F /tn "Avira routine scan" /tr "C:\Users\admin\AppData\Roaming\Avira Antivir\Check for updates.bat" /SC DAILY | C:\Windows\system32\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2212 | "C:\Users\admin\AppData\Roaming\Avira Antivir\quiet.exe" "C:\Users\admin\AppData\Roaming\Avira Antivir\Updater.bat" | C:\Users\admin\AppData\Roaming\Avira Antivir\quiet.exe | — | cmd.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.1.0.0 Modules
| |||||||||||||||
| 2464 | "C:\Users\admin\AppData\Local\Temp\The Silent Office Exploit.exe" | C:\Users\admin\AppData\Local\Temp\The Silent Office Exploit.exe | Office Exploit Builder.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 2576 | "C:\Users\admin\AppData\Local\Temp\Installer.exe" | C:\Users\admin\AppData\Local\Temp\Installer.exe | Office Exploit Builder.exe | ||||||||||||
User: admin Company: Integrity Level: MEDIUM Description: Installer Setup Exit code: 0 Version: Modules
| |||||||||||||||
| 2844 | PING 127.0.0.1 -n 99 | C:\Windows\system32\PING.EXE | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: TCP/IP Ping Command Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3868 | "C:\Windows\system32\cmd.exe" /C ""C:\Users\admin\AppData\Roaming\Avira Antivir\avirascan.bat"" | C:\Windows\system32\cmd.exe | — | Installer.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 3892 | "C:\Windows\system32\cmd.exe" /C ""C:\Users\admin\AppData\Roaming\Avira Antivir\check for updates.bat"" | C:\Windows\system32\cmd.exe | — | Installer.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
Total events
749
Read events
730
Write events
13
Delete events
6
Modification events
| (PID) Process: | (752) Office Exploit Builder.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (752) Office Exploit Builder.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2036) Installer.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | Owner |
Value: F4070000BAC8E539C6FFD601 | |||
| (PID) Process: | (2036) Installer.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | SessionHash |
Value: 2BAD91FFA1F5373143C019DB97141944E22CE09F2E98D29BE4788564932FD84A | |||
| (PID) Process: | (2036) Installer.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | Sequence |
Value: 1 | |||
| (PID) Process: | (2036) Installer.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | RegFiles0000 |
Value: C:\Users\admin\AppData\Roaming\Avira Antivir\Avira_Antivirus.exe | |||
| (PID) Process: | (2036) Installer.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | RegFilesHash |
Value: 6770AF26F04E816DB87C1B7592D1CE4A8D56A6881DAB2CF25D66B3A8D4FA5A39 | |||
| (PID) Process: | (2212) quiet.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2212) quiet.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2036) Installer.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | delete value | Name: | RegFilesHash |
Value: 6770AF26F04E816DB87C1B7592D1CE4A8D56A6881DAB2CF25D66B3A8D4FA5A39 | |||
Executable files
8
Suspicious files
0
Text files
32
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2464 | The Silent Office Exploit.exe | C:\Users\admin\AppData\Local\Temp\autDB2E.tmp | — | |
MD5:— | SHA256:— | |||
| 2464 | The Silent Office Exploit.exe | C:\Users\admin\AppData\Local\Temp\nrjweaz | — | |
MD5:— | SHA256:— | |||
| 2464 | The Silent Office Exploit.exe | C:\Users\admin\AppData\Local\Temp\autDB4E.tmp | — | |
MD5:— | SHA256:— | |||
| 2464 | The Silent Office Exploit.exe | C:\Users\admin\AppData\Local\Temp\autDB5F.tmp | — | |
MD5:— | SHA256:— | |||
| 2036 | Installer.tmp | C:\Users\admin\AppData\Roaming\Avira Antivir\is-71VEU.tmp | — | |
MD5:— | SHA256:— | |||
| 2464 | The Silent Office Exploit.exe | C:\Users\admin\AppData\Local\Temp\autDB6F.tmp | — | |
MD5:— | SHA256:— | |||
| 2036 | Installer.tmp | C:\Users\admin\AppData\Roaming\Avira Antivir\is-H82MQ.tmp | — | |
MD5:— | SHA256:— | |||
| 2036 | Installer.tmp | C:\Users\admin\AppData\Roaming\Avira Antivir\is-IJKNH.tmp | — | |
MD5:— | SHA256:— | |||
| 2036 | Installer.tmp | C:\Users\admin\AppData\Roaming\Avira Antivir\is-GFVPA.tmp | — | |
MD5:— | SHA256:— | |||
| 2036 | Installer.tmp | C:\Users\admin\AppData\Roaming\Avira Antivir\is-CGJPI.tmp | — | |
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
0
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report