| File name: | OInstall.exe |
| Full analysis: | https://app.any.run/tasks/bbc9409f-bd96-4a8e-8fb2-6cbb505a7729 |
| Verdict: | Malicious activity |
| Analysis date: | January 11, 2019, 18:00:47 |
| 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: | 156E5564C5BF8D3A74573AD740D73093 |
| SHA1: | 79962A206BDC2B24325BBD6748DA1A20E4680B95 |
| SHA256: | 83A4F9F1E17C3C188C67AFE7BAD699CD312170D10CA25332C5B424533324BA48 |
| SSDEEP: | 196608:qRLP7UBLxRzec4RTdNsYnaQ/JU/ITGPc6Fr7AZvzovq0DGyL5:qR3UBFxR4HNsYPB34vFr7AZcyL |
MALICIOUS
Application was dropped or rewritten from another process
- files.dat (PID: 2816)
SUSPICIOUS
Executes scripts
- cmd.exe (PID: 3172)
Uses REG.EXE to modify Windows registry
- cmd.exe (PID: 2124)
- cmd.exe (PID: 3216)
Executable content was dropped or overwritten
- OInstall.exe (PID: 2424)
- files.dat (PID: 2816)
Starts application with an unusual extension
- cmd.exe (PID: 2352)
Starts CMD.EXE for commands execution
- OInstall.exe (PID: 2424)
INFO
Reads Microsoft Office registry keys
- reg.exe (PID: 3636)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
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
| FileDescription: | Office 2013-2016 C2R Install |
|---|---|
| ProductName: | Office 2013-2016 C2R Install |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Unknown |
| FileOS: | Unknown (0) |
| FileFlags: | (none) |
| FileFlagsMask: | 0x0000 |
| ProductVersionNumber: | 6.4.9.0 |
| FileVersionNumber: | 6.4.9.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x121d0c0 |
| UninitializedDataSize: | 8933376 |
| InitializedDataSize: | 90112 |
| CodeSize: | 10059776 |
| LinkerVersion: | 2.5 |
| PEType: | PE32 |
| TimeStamp: | 2018:12:10 10:13:08+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 10-Dec-2018 09:13:08 |
| Detected languages: |
|
| ProductName: | Office 2013-2016 C2R Install |
| FileDescription: | Office 2013-2016 C2R Install |
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: | 3 |
| Time date stamp: | 10-Dec-2018 09:13:08 |
| 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 |
|---|---|---|---|---|---|
UPX0 | 0x00001000 | 0x00885000 | 0x00000000 | IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
UPX1 | 0x00886000 | 0x00998000 | 0x00997400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.88253 |
.rsrc | 0x0121E000 | 0x00016000 | 0x00015200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 1.96758 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 4.94291 | 1117 | UNKNOWN | English - United States | RT_MANIFEST |
2 | 1.96082 | 9640 | UNKNOWN | English - United States | RT_ICON |
3 | 2.20562 | 4264 | UNKNOWN | English - United States | RT_ICON |
4 | 2.87138 | 1128 | UNKNOWN | English - United States | RT_ICON |
Imports
ADVAPI32.DLL |
COMCTL32.DLL |
GDI32.DLL |
ICMP.DLL |
IMAGEHLP.DLL |
IPHLPAPI.DLL |
KERNEL32.DLL |
MSI.DLL |
MSVCRT.dll |
NETAPI32.DLL |
Total processes
49
Monitored processes
11
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3324 | "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
| |||||||||||||||
| 2424 | "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 Modules
| |||||||||||||||
| 3668 | "C:\Windows\System32\cmd.exe" /D /c copy C:\Windows\system32\Tasks\OInstall "C:\Windows\Temp\OInstall.tmp" /Y | C:\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
| |||||||||||||||
| 2352 | "C:\Windows\System32\cmd.exe" /D /c files.dat -y -pkmsauto | C:\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
| |||||||||||||||
| 2816 | files.dat -y -pkmsauto | C:\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
| |||||||||||||||
| 3216 | "C:\Windows\System32\cmd.exe" /c REG QUERY HKLM\Software\Microsoft\Office /s /v Path /reg:64 | C:\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
| |||||||||||||||
| 3636 | REG QUERY HKLM\Software\Microsoft\Office /s /v Path /reg:64 | C:\Windows\System32\reg.exe | — | cmd.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
| |||||||||||||||
| 2124 | "C:\Windows\System32\cmd.exe" /c REG QUERY HKLM\Software\WOW6432Node\Microsoft\Office /s /v Path | C:\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
| |||||||||||||||
| 2784 | REG QUERY HKLM\Software\WOW6432Node\Microsoft\Office /s /v Path | C:\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
| |||||||||||||||
| 3172 | "C:\Windows\System32\cmd.exe" /D /c cscript.exe "" /dstatus //NoLogo | C:\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
| |||||||||||||||
Total events
54
Read events
52
Write events
2
Delete events
0
Modification events
| (PID) Process: | (2424) OInstall.exe | Key: | HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\MediaResources\DirectSound\Speaker Configuration |
| Operation: | write | Name: | Speaker Configuration |
Value: 4 | |||
Executable files
6
Suspicious files
0
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2816 | files.dat | C:\Users\admin\AppData\Local\Temp\files\Uninstall.xml | text | |
MD5:364F86F97324EA82FE0D142CD01CF6DD | SHA256:09D5B42140BAB13165BA97FBD0E77792304C3C93555BE02C3DCE21A7A69C66DD | |||
| 2816 | files.dat | C:\Users\admin\AppData\Local\Temp\files\Configure.xml | text | |
MD5:AC6BE84084E31DBB0E08D188B6C86EC8 | SHA256:1879F7DE537C2AA70292C61EBEF9C6477D36E25B2E6A639E318B159E0A22B0FC | |||
| 2816 | files.dat | C:\Users\admin\AppData\Local\Temp\files\x86\cleanospp.exe | executable | |
MD5:5FD363D52D04AC200CD24F3BCC903200 | SHA256:3FDEFE2AD092A9A7FE0EDF0AC4DC2DE7E5B9CE6A0804F6511C06564194966CF9 | |||
| 2816 | files.dat | C:\Users\admin\AppData\Local\Temp\files\x64\cleanospp.exe | executable | |
MD5:162AB955CB2F002A73C1530AA796477F | SHA256:5CE462E5F34065FC878362BA58617FAB28C22D631B9D836DDDCF43FB1AD4DE6E | |||
| 2816 | files.dat | C:\Users\admin\AppData\Local\Temp\files\x86\msvcr100.dll | executable | |
MD5:BF38660A9125935658CFA3E53FDC7D65 | SHA256:60C06E0FA4449314DA3A0A87C1A9D9577DF99226F943637E06F61188E5862EFA | |||
| 2424 | OInstall.exe | C:\Users\admin\AppData\Local\Temp\files\setup.exe | executable | |
MD5:B374FA0E7E34B9CE9C142FE80E1EFADE | SHA256:A87105965530799BABBB71A1FD52DBD7CDDEE71C40E2C37576235D156FF02027 | |||
| 2424 | OInstall.exe | C:\Users\admin\AppData\Local\Temp\files\files.dat | executable | |
MD5:BB81E763AB0E673B3C1AF2FEA2586A9A | SHA256:4D45C64B244C8F997358635C3B5CB9A65743FAC473D65C455D3BA8A25E50D5F9 | |||
| 2816 | files.dat | C:\Users\admin\AppData\Local\Temp\files\x64\msvcr100.dll | executable | |
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
0
DNS requests
0
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report