Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a42e8550bbf668c…

MALICIOUS

PDF

70.6 KB Created: 2020-03-18 07:39:58 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 9cea86e3e9ee568ad7c7d4476974ed65 SHA-1: b53b9a0e8d71d425529f0cc8debdcb7dd2928ab2 SHA-256: 1a42e8550bbf668c7c44c9246f6c2bba9312dab1d1da49508e65a8fec556c981
96 Risk Score

Malware Insights

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

The PDF contains numerous SEO-optimized links to other PDFs, a common tactic for link farming and potentially distributing malware. The document body mentions 'Assassin's creed syndicate money cheats ps4', suggesting a lure to a malicious website. The ML classifier also strongly flagged this PDF as malicious.

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://thesingbabysingshow.com/uploads/1/3/0/6/130605167/130605167.html#assassin%27s+creed+syndicate+money+cheats+ps4 PDF link annotation
    • http://buttonsnmoore.ca/uploads/1/3/0/6/130639853/lidirekilel.pdfIn PDF document text
    • http://jptruluckart.org/uploads/1/3/0/2/130272231/0b07c1c816f0.pdfIn PDF document text
    • http://www.carriewears.com/uploads/1/3/0/5/130542909/ridewux.pdfIn PDF document text
    • http://agentmind.com/uploads/1/3/0/2/130288348/3188015.pdfIn PDF document text
    • http://remote.walcokip.com/uploads/1/3/0/5/130551248/vivaruxi-ruwaxipokoxepi-wawonuxitodepeb-tigenofigini.pdfIn PDF document text
    • http://wilmingtonncwebdesigners.com/uploads/1/3/0/8/130814714/8476424.pdfIn PDF document text
    • http://www.larderfoods.co.uk/uploads/1/3/0/6/130639107/aa9e5a.pdfIn PDF document text
    • http://www.comesailingcharterschicago.com/uploads/1/3/0/5/130545493/teleneratidaxum.pdfIn PDF document text
    • http://www.yourbusinesslive.ie/uploads/1/3/0/6/130639087/1322354.pdfIn PDF document text
    • http://leaningtreeshoney.com/uploads/1/3/0/6/130639162/keminimar-butuxudidaxidi-lejagevarelidi.pdfIn PDF document text
    • http://friendspub.org/uploads/1/3/0/6/130604086/5739750.pdfIn PDF document text
    • http://imgmfr.com/uploads/1/3/0/2/130289242/segarupo.pdfIn PDF document text
    • http://www.sacredspiritadventures.com/uploads/1/3/0/7/130775382/bewosumewinesob_vasowosi_lobifen.pdfIn PDF document text
    • http://petalstopins.com/uploads/1/3/0/4/130436125/4601218.pdfIn PDF document text
    • http://pepperminttrail.com/uploads/1/3/0/6/130605399/figaxapaxufuka_pisigomogazub_xefexejire_zikebul.pdfIn PDF document text
    • http://svnforce.com/uploads/1/3/0/6/130640069/1957002.pdfIn PDF document text
    • http://sousmarine.de/uploads/1/3/0/5/130589156/sovewa.pdfIn PDF document text
    • http://www.nioconsultancy.co.uk/uploads/1/3/0/9/130968994/877e9.pdfIn PDF document text
    • http://fischerconsultingsolutions.com/uploads/1/3/0/4/130436289/migegitivuxifugefa.pdfIn PDF document text
    • http://www.unicornbakinghouse.com/uploads/1/3/0/2/130274291/3ec4c4.pdfIn PDF document text
    • http://kronx.com/uploads/1/3/0/4/130489467/7230138.pdfIn PDF document text
    • http://frankieharrer.com/uploads/1/3/0/2/130271124/ee269.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 4

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_off0000ec1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC1A 8348 bytes
SHA-256: f15958d0f49b53ae13f06123f36f62fcbca5f21bcbaf20ffdc4ba6aecc32176e

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