Malicious PDF — malware analysis report

Static analysis result for SHA-256 979cf8f7be559ad8…

MALICIOUS

PDF

45.4 KB Created: 2020-08-07 01:12:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bcf70a6da06b93d5a206939645695888 SHA-1: 8564c5a39ad74829dfef49704caa20a3a06034a0 SHA-256: 979cf8f7be559ad80a4f7ac54e96c297b61415d84695f32663e672ad7f558b1c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=metal+forming+analysis+book+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to redirect the user to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

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/pify?keyword=metal+forming+analysis+book+pdf In PDF document text
    • http://files.goodworks.org.uk/uploads/1/3/1/4/131437775/6222700.pdfIn PDF document text
    • http://files.preciousinvestltd.com/uploads/1/3/1/4/131437018/e860e5206d3e28b.pdfIn PDF document text
    • http://files.prabeer.org/uploads/1/3/0/7/130740158/38bd36c41.pdfIn PDF document text
    • http://files.angelageddes.com/uploads/1/3/1/1/131164152/koxarinin_rerawasivaxipa_terilowij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6305/8325/files/simple_business_plan_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/poxorol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5996/0218/files/41883803002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/lodaritejidagusiwiror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/18233326525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9052/5849/files/41385182784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7808/1955/files/galantis_runaway_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5817/5906/files/47937345050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5679/8627/files/91010906582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/8671290482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2100/1119/files/70649839325.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000658a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658A 5460 bytes
SHA-256: 81b4f7198da30960e0b2b9456e284a7252fe65445885bebcecc61888f0c4f769
font_01_sfnt_off0000780e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x780E 10188 bytes
SHA-256: 1be3cbd17891ab638b26677b764af128187d64203a213309d259605c8fb18330
font_02_sfnt_off00009aec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AEC 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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