Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bab856ba46780d4…

MALICIOUS

PDF

70.5 KB Created: 2021-01-21 17:10:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 9477857b6336795f89b762a1a3513fad SHA-1: 7616290e496754ac7363b2572736edf98d63a829 SHA-256: 9bab856ba46780d4ccf48b8d12852e7b8bb6637a8964f0f0d82fd5b87b3bcb04
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://jottigo.ru/aws?utm_term=guided+fertility+meditation+free PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366351/normal_5fc844fee5005.pdfIn PDF document text
    • https://romizipomubem.weebly.com/uploads/1/3/0/7/130775952/5374937.pdfIn PDF document text
    • https://cdn.sqhk.co/kenipafitu/hdsEAv8/who_really_killed_bob_in_the_outsiders.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371787/normal_5f88f15746936.pdfIn PDF document text
    • https://liwavijej.weebly.com/uploads/1/3/4/3/134379327/4459716.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443624/normal_5ffcf00d733c1.pdfIn PDF document text
    • https://ritefebeg.weebly.com/uploads/1/3/5/3/135316582/tewoxilumakebi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445743/normal_5ffe2d9cc39b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387589/normal_5f9916c3e371d.pdfIn PDF document text
    • https://cdn.sqhk.co/temisexezoda/3hfsjgC/83533960613.pdfIn PDF document text
    • https://zibakuponitek.weebly.com/uploads/1/3/5/3/135303957/e8cbacbf5e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481400/normal_5fe2d754f1808.pdfIn PDF document text
    • https://cdn.sqhk.co/kusewupudin/Fhphbid/cool_tie_dye_designs_for_shirts.pdfIn PDF document text
    • https://cdn.sqhk.co/xumobopore/igjUghN/vixowisizuno.pdfIn PDF document text
    • https://cdn.sqhk.co/tedogegez/jrkHghi/vorelotonigexafunadadad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/electronically_controlled_manual_transmission_cars.pdfIn PDF document text
    • http://pumamolo.rf.gd/89727177049.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/aeroportul_otopeni_informatii_telefon.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD738 5008 bytes
SHA-256: 0a4a20155a98fa94644c558496b0e8d6f556e23d45eeed952845e35ae0aef880
font_01_sfnt_off0000e833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE833 10684 bytes
SHA-256: 08679d91943a9e08b675938d219fab28d2649a8528d3386649b52b43d5580371