Malicious PDF — malware analysis report

Static analysis result for SHA-256 55e0b11c1c4ffdea…

MALICIOUS

PDF

41.5 KB Created: 2020-08-10 12:47:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fedf8f948687ea4c1516e462af3a30f SHA-1: 11ab7af92bdaf669dd4285325790db312cc89762 SHA-256: 55e0b11c1c4ffdeabead5f06b03ae4b117291e147ec43c6d97e6cd3b9af97f54
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are hosted on potentially suspicious domains. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be social engineering through a deceptive link, likely intended to redirect the user to a malicious site for further exploitation.

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.com/pify?keyword=ice+cream+worksheets+pdf In PDF document text
    • http://xexarusi.voodoolovespellsandblackmagic.com/uploads/1/3/0/8/130874431/libave-piwozo-surulixa.pdfIn PDF document text
    • http://jefixon.oerv-rettungshunde.com/uploads/1/3/1/6/131606490/soputetedoxu.pdfIn PDF document text
    • http://files.mamss.org/uploads/1/3/1/4/131453188/romabekumuluro.pdfIn PDF document text
    • http://files.aquaworxja.com/uploads/1/3/2/6/132681207/3619e0acb.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/1/0434/4751/7341/files/business_model_generation_canvas_deutsch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3789/1482/files/kambikuttan_cartoon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3197/8403/files/precalculus_textbook_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8446/3784/files/pedosesunefuposonakev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/luviwibuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8545/4750/files/mopaxokimukepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7793/5004/files/state_abbreviations_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8231/files/lalupep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83759083977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8882/8829/files/93198747252.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 1

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_off0000637a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637A 5456 bytes
SHA-256: 133a8f34a6a5f8143c1a72693398f9303ece207cb14c3f59d2bae2e368e34d4e
font_01_sfnt_off000075f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F4 10420 bytes
SHA-256: 7327b67b0953deebb64037c2b2f968eee976e48726671f3a4eaea38a78ed3815

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