Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b35b2dd5d88790e…

MALICIOUS

PDF

48.6 KB Authoring application: GIMP
MD5: afdc8d3e6f52656f46b878ddc8483226 SHA-1: e935370f41a2f9fc98bb4425158ef91cb4f0a08d SHA-256: 4b35b2dd5d88790e177cc1418269790c50c01b4d6cf534032c3971e64bedc1fe
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly support a malicious classification. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://apollo1firenhd.com/uploads/1/3/0/2/130271259/xinisafivelu_munalurorufi_pifadobu.pdf
    • http://cranfordfishstand.com/uploads/1/3/0/3/130323531/xagepotulipu.pdf
    • http://myers-adams.com/uploads/1/3/0/6/130639583/3c36e85cf1936.pdf
    • http://welcomehometoatmore.com/uploads/1/3/0/6/130620154/kisolaz.pdf
    • http://ciarawiegers.com/uploads/1/3/0/4/130476548/fuzire_tokek_daluxuz.pdf
    • http://driversedgrades.com/uploads/1/3/0/5/130551700/7cc201.pdf
    • http://andersonmobilehomepark.com/uploads/1/3/0/2/130287426/xarutepepijawi.pdf
    • http://procreditsol.com/uploads/1/3/0/6/130621625/25809a523d.pdf
    • http://clucktruckportland.com/uploads/1/3/0/4/130483679/130483679.html#historial+da+dan%C3%A7a+carnaval+de+macar

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001274.bin
4acb3b26ff02204fc97bfec1de31809c8702aaaffcda94b97a499d1d51029808		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1274 11088 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.