Malicious PDF — malware analysis report

Static analysis result for SHA-256 60682832514b8430…

MALICIOUS

PDF

65.3 KB Created: 2020-07-20 03:05:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-04
MD5: aaf8194bd5550d4c6e0fca052af609d2 SHA-1: 4ac4bc9bea2cae0126f0f4042af40c8f365ccc87 SHA-256: 60682832514b8430f172fa8cbfbc8a1866cdc317bf0d4e5e234f5280e5d856ec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link disguised as a document about heavy metals in water, which redirects to a malicious URL. This indicates a phishing attempt to trick users into visiting a potentially harmful site. The PDF also contains a large number of links to other PDFs, suggesting a link farm or SEO manipulation tactic to obscure the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://ttraff.cc/wb?keyword=list%20of%20heavy%20metals%20in%20water%20pdf In PDF document text
    • http://files.sadieparrotta.com/uploads/1/3/1/4/131437296/wokowikezizadulid.pdfIn PDF document text
    • http://files.dfdoctorwho.com/uploads/1/3/0/8/130813645/9b1382.pdfIn PDF document text
    • http://files.warragulbonsai.com.au/uploads/1/3/2/6/132682063/5932c389bb3.pdfIn PDF document text
    • http://files.selectatrackplayer.com/uploads/1/3/0/7/130739978/joxevozadifubim-kulexevozetanet-fokoto.pdfIn PDF document text
    • http://files.wichitatoyrun.com/uploads/1/3/2/6/132682899/591870.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://xozekaf917638661.files.wordpress.com/2020/07/milipuvifijemuxegugapow.pdfIn PDF document text
    • https://pedosew811448417.files.wordpress.com/2020/07/22346116846.pdfIn PDF document text
    • https://suvirowom.files.wordpress.com/2020/06/bovomaloleruwopoxig.pdfIn PDF document text
    • https://xevekebi.files.wordpress.com/2020/07/55946493038.pdfIn PDF document text
    • https://fidedafekulo.files.wordpress.com/2020/07/26390002470.pdfIn PDF document text
    • https://kurukav.files.wordpress.com/2020/07/35483554991.pdfIn PDF document text
    • https://kekebig.files.wordpress.com/2020/07/7053190475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/doxetunazopeguxulizun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3293/5574/files/87869239377.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56666804065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96056065099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/jadoxonevuked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2621/8134/files/mikajilog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/sojew.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

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC189 5264 bytes
SHA-256: ce515d69617af0aedbb31beb0f92e0de677d8938a9be0dc0c5a0b09960642423
font_01_sfnt_off0000d35d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD35D 11012 bytes
SHA-256: c1fe8da2bc05bec9661355fb6ca12e68b961fdb8dc14f6e40f9049f25eda1cdf

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