Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6a15bb4d26e72f6…

MALICIOUS

PDF

42.3 KB Created: 2020-03-10 12:13:50 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 890576a2de688409453fa88cc0bb3c98 SHA-1: 0bfbd1c02d0e751d797ce46d8110690d37bc7b01 SHA-256: c6a15bb4d26e72f643937d0fbebeadd24d8bfce22056551f65ee80ab4543b257
70 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files hosted on different domains. One of these links is also present in the document body, suggesting a lure to download further content. The presence of a 'download button' heuristic further supports this. The document appears to be part of a link farm or SEO spam operation, potentially leading to malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://adventuresbyprice.com/uploads/1/3/0/7/130740015/130740015.html#making+sense+of+critical+appraisal+pdf+free
    • http://www.biologicalfuturism.com/uploads/1/3/0/3/130313603/zejiritipewetof.pdf
    • http://gis.vnecessities.com/uploads/1/3/0/4/130483288/gogafiberenezamopax.pdf
    • http://semperfred.org/uploads/1/3/1/0/131070539/lajike_subamud.pdf
    • http://lanechnge.org/uploads/1/3/0/8/130873962/1551893.pdf
    • http://windsorwesley.com/uploads/1/3/0/8/130874219/sabewujugejodo_nakajosa_reboj_vibovakamop.pdf
    • http://nuecescanyonlodge.com/uploads/1/3/0/2/130273610/1b721e3d.pdf
    • http://pharkly.se/uploads/1/3/0/8/130813783/sisetek.pdf
    • http://eviecraig.com/uploads/1/3/0/8/130874211/vorubuputunilopem.pdf
    • http://npnbuyer.net/uploads/1/3/0/4/130483514/8f27ea60.pdf
    • http://brookesaltus.com/uploads/1/3/0/2/130289523/tafekokefesutovo.pdf
    • http://mission-scamper.com/uploads/1/3/0/5/130588821/fiviko.pdf
    • http://4words.studio/uploads/1/3/0/4/130476389/efaaff7a.pdf
    • http://stockbroker-fraud-lawyer.com/uploads/1/3/0/7/130738955/8747217.pdf
    • http://www.distillerysource.com/uploads/1/3/0/4/130476850/vozikuloda_jenunufekozozi_burejumiji_bapirubida.pdf
    • http://omgcatholicyouthministry.org/uploads/1/3/0/6/130622066/7552568.pdf
    • http://kenichiasai.com/uploads/1/3/0/4/130489367/3861405.pdf
    • http://cpanel.thewestwoodcollection.com/uploads/1/3/0/7/130739210/d5b4ce9b44e4.pdf
    • http://teaszen.com/uploads/1/3/0/8/130874055/medofudivipiw.pdf
    • http://www.eyetrackingdirect.com/uploads/1/3/0/5/130588693/jigijunukuz.pdf
    • http://plumandmoss.com/uploads/1/3/0/6/130621394/nevepidinusenunorin.pdf
    • http://jslbinvestments.com/uploads/1/3/0/4/130476733/xirozedebixo_kakef_jabezox_dalaxivobo.pdf
    • http://wwe.corcoranwebdesign.com/uploads/1/3/0/2/130273978/wejom_xizizo_bowexu_sakamujafa.pdf
    • http://mail.incomepowerllc.com/uploads/1/3/0/6/130621460/nosikexezojog_kexuluwekugibu_durinu.pdf
    • http://mail.incomepowerllc.com/uploads/1/3/0/6/130
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007bb1.bin
9b518f92718181cb582960aa419c1c4b8eaf1bb11726fcac47d26593a026ddf1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB1 8088 bytes

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