Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc073a057ef63dd9…

MALICIOUS

PDF

40.5 KB Created: 2020-08-15 02:02:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0abb7946bab2065b162b004bdee79a6 SHA-1: 70abbbb81c714394ab7cd7740576dd3ceeb171c4 SHA-256: bc073a057ef63dd9a669eeb205ef7fea7e2e48eef9b00f49e89be4988900c5de
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to funnel victims to a phishing or malware distribution site. The document also exhibits characteristics of a callback phishing lure, instructing the user to call a number in a billing or security context. The presence of numerous external PDF links suggests a link farm intended to manipulate search engine results for SEO poisoning, potentially to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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.com/pify?keyword=bps+continuation+sheets In PDF document text
    • http://files.recollectiveway.org/uploads/1/3/1/8/131871416/bujilowewes.pdfIn PDF document text
    • http://files.mainematsolutions.com/uploads/1/3/0/7/130740401/082f786f83042.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2915/0368/files/16499277485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3699/7782/files/puremixalapesodiferipikem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4890/2554/files/78240590538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1537/0912/files/42971419683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6479/5044/files/posow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8903/files/boxobofunefoxebetisowin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/2617808068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3953/8851/files/kekuwojelufabunemuvate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4774/5698/files/reading_list_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37638787324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/functional_foods_review.pdfIn PDF document text
    • https://ruralpayments.blog.gov.uk/2018/05/01/13-important-reminders-when-making-your-bps-applicationIn 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 5

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_off000060c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C9 4940 bytes
SHA-256: cbc590f3863ede8af5721ce2108f046f1839c050d309b915f500c2787d315624
font_01_sfnt_off00007194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7194 10492 bytes
SHA-256: 1d67c9c9ac6c4ffdd3dce04b924f613e7d2a1b88955708bf0cff10a436cd553d

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