Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff6c1fa554dabb4d…

MALICIOUS

PDF

34.8 KB Authoring application: Solid Converter PDF
MD5: c624dbb32c9b63c4cf1b6747dde5bfa9 SHA-1: 15fe979eb0bbcd260322621642c50754619385d8 SHA-256: ff6c1fa554dabb4d322f88fde60609d2bd5244495110cbc4bc667d0c2ef30f3a
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links to other PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or redirection scheme, likely intended to manipulate search engine rankings or direct users to malicious content. The ML classifier and ClamAV detection further support its malicious nature. 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://www.scatteroo.com/uploads/1/3/0/7/130776712/7a457b20.pdf
    • http://anatomyfinalproject.com/uploads/1/3/0/6/130604499/tedalol_kotedoxibelaz_kixevasumi_fogezedo.pdf
    • http://drewkenney.com/uploads/1/3/0/7/130739218/90bd9bc13ca4ce.pdf
    • http://vegangroupie.com/uploads/1/3/0/5/130588670/pumugejofami-wizufi-xexudejewuf.pdf
    • http://restapi.org/uploads/1/3/0/6/130621102/bekolunivi-solureseporig.pdf
    • http://74-123-77-161.mgwnet.com/uploads/1/3/0/8/130874648/gokagoridazutal.pdf
    • http://hairypawinn.com/uploads/1/3/0/7/130775164/a6263661cac246.pdf
    • http://sharonreinschmiedt.com/uploads/1/3/0/5/130539095/rasunugakoto-dusewazirefek-tafafaguliji.pdf
    • http://oshey.space/uploads/1/3/0/7/130775334/fcd33d1ab47a2c.pdf
    • http://hostmaster.pumbaaeventing.co.uk/uploads/1/3/0/4/130436513/68efa3e34f596.pdf
    • http://aseantracking.asia/uploads/1/3/0/6/130639786/salinovuxo-zugid-duwuwarad-kapaverebesok.pdf
    • http://webmail.jacquelineclewis.com/uploads/1/3/0/6/130620838/130620838.html#einstein+bros+bagels+catering+coupon+code
    • http://hairypawinn.com/uploads/1/3/0/7/1307751

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f2c.bin
f970bf053006e067fb9751b7e49f39020b9cb295021b56c5d50b83fc05ef0afa
pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2C 8408 bytes