Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1ff9c22dd4940f8…

MALICIOUS

PDF

41.6 KB Created: 2020-03-11 14:29:03 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 8fdfa799bbe3356d9d247530a0182b1d SHA-1: 792b2c8e68c19b527c49b4a0f04f126f8282d3ee SHA-256: a1ff9c22dd4940f88803e69e16c5826ea25f707d2c0107409c069ec4c70e9349
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, a technique often used for SEO spam or to direct users to malicious sites. The document body mentions 'Adobe scan app cost', suggesting a lure to a potentially fraudulent service or phishing page. No scripts were extracted, limiting the analysis of direct malicious actions within the file itself.

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://www.stylesbymyeesha.com/uploads/1/3/0/4/130483836/130483836.html#adobe+scan+app+cost PDF link annotation
    • http://orabaumanagementgmbh.ch/uploads/1/3/0/6/130621510/kodabag-bixutazorezu-luwagi-nufomujapavagad.pdfIn PDF document text
    • http://perfectionbarberandbeautysalon.org/uploads/1/3/0/5/130551445/menuginijugeg.pdfIn PDF document text
    • http://reputation.websitesandsocialmedia.com/uploads/1/3/0/6/130621273/lixakunefutivibupamo.pdfIn PDF document text
    • http://primeclassutah.com/uploads/1/3/0/6/130640194/xotafuwaxa.pdfIn PDF document text
    • http://www.natashabeautiful.com/uploads/1/3/0/4/130483390/d720d6f240b9f.pdfIn PDF document text
    • http://kidsmusicparties.musicmonkeyjungle.com/uploads/1/3/0/7/130739895/kimejoworizu-diwuri.pdfIn PDF document text
    • http://met-wilderwood.com/uploads/1/3/0/6/130604639/7269117.pdfIn PDF document text
    • http://www.mdreliablebuildingsolutions.com/uploads/1/3/0/4/130488786/valoz.pdfIn PDF document text
    • http://iceehott.com/uploads/1/3/0/9/130969191/901c19f9b8e545.pdfIn PDF document text
    • http://queenalexandra78ave.com/uploads/1/3/0/6/130620956/756f5efc29.pdfIn PDF document text
    • http://sdpool.net/uploads/1/3/0/4/130478110/noxelafajuninex.pdfIn PDF document text
    • http://anopenproject.ca/uploads/1/3/0/5/130546937/c3f14c.pdfIn PDF document text
    • http://www.toxictoasttheatre.com/uploads/1/3/0/8/130874034/555a6d6570a6.pdfIn PDF document text
    • http://lazybyrd.com.au/uploads/1/3/0/7/130739718/paxuxut.pdfIn PDF document text
    • http://admin.evolvetransitiontrust.org/uploads/1/3/0/6/130639300/bovofudid_vametopesovik.pdfIn PDF document text
    • http://natashadavid.com/uploads/1/3/0/6/130620791/2276441.pdfIn PDF document text
    • http://narrins.com/uploads/1/3/0/7/130775543/lojilufawinoxi.pdfIn PDF document text
    • http://realtidylawns.com/uploads/1/3/0/3/130323411/50c1c87b6.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 1

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_off00007816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7816 8632 bytes
SHA-256: 34a949a16e13fa42de400e281dec144031bee758ff3846580fda08eabd15f61e

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