| File name: | MACRO-DFIR-RETO.xls |
| Full analysis: | https://app.any.run/tasks/dba8cee7-e14d-4665-a84d-84ab605ad830 |
| Verdict: | Malicious activity |
| Analysis date: | March 31, 2024, 06:18:00 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.ms-excel |
| File info: | CDFV2 Microsoft Excel |
| MD5: | CD1D5DCB90901299B28FF9201426DECD |
| SHA1: | E950AB3DF7BE673792F14EBE334EBA3EAD54DF5E |
| SHA256: | B7DFFB5ADF108DBAC3890D1D0292334B7CAFBAB508141F5A45C8AE21722B87DE |
| SSDEEP: | 1536:AsssHQHYtrypIh12lcz6xQv+tkbCZ43GVMjKB0/ShPr5Tl7RTFLJD17xDVL5zF7x:suDiEB2995AInPMEbnAh2jV |
MALICIOUS
Unusual execution from MS Office
- EXCEL.EXE (PID: 1836)
Registers / Runs the DLL via REGSVR32.EXE
- EXCEL.EXE (PID: 1836)
Connection from MS Office application
- EXCEL.EXE (PID: 1836)
Calls Win API functions (MACROS)
- EXCEL.EXE (PID: 1836)
SUSPICIOUS
Non-standard symbols in registry
- EXCEL.EXE (PID: 1836)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .xls | | | Microsoft Excel sheet (78.9) |
|---|
EXIF
FlashPix
| CodePage: | Windows Latin 1 (Western European) |
|---|---|
| Company: | - |
| ScaleCrop: | No |
| LinksUpToDate: | No |
| TitleOfParts: |
|
| HeadingPairs: |
|
Total processes
40
Monitored processes
3
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 696 | regsvr32 -s ..\iroto.dll | C:\Windows\System32\regsvr32.exe | — | EXCEL.EXE | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft(C) Register Server Exit code: 3 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1836 | "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde | C:\Program Files\Microsoft Office\Office14\EXCEL.EXE | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Excel Version: 14.0.6024.1000 Modules
| |||||||||||||||
| 3164 | regsvr32 -s ..\iroto1.dll | C:\Windows\System32\regsvr32.exe | — | EXCEL.EXE | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft(C) Register Server Exit code: 3 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
5 832
Read events
5 626
Write events
66
Delete events
140
Modification events
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems |
| Operation: | write | Name: | oc> |
Value: 6F633E002C070000010000000000000000000000 | |||
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1033 |
Value: Off | |||
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1041 |
Value: Off | |||
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1046 |
Value: Off | |||
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1036 |
Value: Off | |||
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1031 |
Value: Off | |||
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1040 |
Value: Off | |||
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1049 |
Value: Off | |||
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 3082 |
Value: Off | |||
| (PID) Process: | (1836) EXCEL.EXE | Key: | HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages |
| Operation: | write | Name: | 1042 |
Value: Off | |||
Executable files
1
Suspicious files
1
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1836 | EXCEL.EXE | C:\Users\admin\AppData\Local\Temp\CVR23CF.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 1836 | EXCEL.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\MACRO-DFIR-RETO.xls.LNK | — | |
MD5:— | SHA256:— | |||
| 1836 | EXCEL.EXE | C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\index.dat | text | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
8
DNS requests
3
Threats
0
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 | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 224.0.0.252:5355 | — | — | — | unknown |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1836 | EXCEL.EXE | 188.209.214.83:443 | nws.visionconsulting.ro | ROMARG SRL | RO | unknown |
1836 | EXCEL.EXE | 49.13.77.253:443 | royalpalm.sparkblue.lk | Hetzner Online GmbH | DE | unknown |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
nws.visionconsulting.ro |
| unknown |
royalpalm.sparkblue.lk |
| unknown |
dns.msftncsi.com |
| shared |