Malicious PDF — malware analysis report

Static analysis result for SHA-256 29344f6589db6876…

MALICIOUS

PDF

36.4 KB Created: 2020-03-12 07:28:47 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 7586a418436c16c782d8448339f4b929 SHA-1: f6d79adcc35dbdfc2f80830214f6ed7595432822 SHA-256: 29344f6589db6876d746cfc58868a7a78d1072d38dc35711459b7230a82e85b7
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, includes URLs that are also present in the list of extracted URLs. These URLs point to various domains and likely serve as a link farm, potentially for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://cpanel.t2troubleshooting.com/uploads/1/3/0/6/130621544/130621544.html#critical+f+value+for+multiple+regression+table PDF link annotation
    • http://shoppingwithshannontoday.org/uploads/1/3/0/4/130491444/boluzuwasik-dadirin-texulutenilusox.pdfIn PDF document text
    • http://www.belleairbeachresort.com/uploads/1/3/0/5/130539243/1c6ef7f6392c.pdfIn PDF document text
    • http://discoveryresourcesllc.net/uploads/1/3/0/6/130621413/wigimeraxiretafogani.pdfIn PDF document text
    • http://mspistone.com/uploads/1/3/0/2/130289623/5c1b4deab1713c7.pdfIn PDF document text
    • http://www.batplanet.co.uk/uploads/1/3/0/9/130969657/mikazewilufobew.pdfIn PDF document text
    • http://safecleanasc.com/uploads/1/3/0/7/130776123/fudufi_zegitir_midevukudagi.pdfIn PDF document text
    • http://www.allanmull.com.au/uploads/1/3/0/5/130543074/wifivadesifareziven.pdfIn PDF document text
    • http://uniso.eu/uploads/1/3/0/7/130775447/830f605e375837e.pdfIn PDF document text
    • http://steamkeystudios.com/uploads/1/3/0/2/130271082/vikamakowubovop-kuvipovelubepe-xalegala.pdfIn PDF document text
    • http://www.josestad.nl/uploads/1/3/0/2/130288380/c227cb0ce.pdfIn PDF document text
    • http://studyconnectnz.com/uploads/1/3/0/7/130739962/vukativelovite.pdfIn PDF document text
    • http://doubledipt.com/uploads/1/3/0/3/130324164/kewebikizubude_luzar_titan.pdfIn PDF document text
    • http://www.olares.com/uploads/1/3/0/4/130435743/fubaf-vegoxuvobule-nizenavirotusov.pdfIn PDF document text
    • http://goodhelp.com.au/uploads/1/3/0/7/130775012/ffdb75550d8d.pdfIn PDF document text
    • http://dwight-womack.com/uploads/1/3/1/0/131070332/94bacbc3832a0.pdfIn PDF document text
    • http://johnsfencing.com/uploads/1/3/0/5/130545985/7660fb00ab4fad9.pdfIn PDF document text
    • http://penkrush.com/uploads/1/3/0/6/130620794/922dd6aa3f0b.pdfIn PDF document text
    • http://jcfnf.com/uploads/1/3/0/7/130739540/kamuruvulisezogum.pdfIn PDF document text
    • http://valve.barnabasheart.org/uploads/1/3/0/8/130874102/legijuvefi-kogobape-jedab-xenazulabamedep.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000664f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664F 7000 bytes
SHA-256: 5355b27507455c758ac369f67d23e9022027df4766338551a3fae43821e921c9

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