Malicious PDF — malware analysis report

Static analysis result for SHA-256 a48335d8913e4ca4…

MALICIOUS

PDF

44.2 KB Created: 2020-08-10 06:30:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e369f5fdcb05986784d482d494d853b1 SHA-1: e799b6f09383c3d467ebc0820d24dbcfa40ae287 SHA-256: a48335d8913e4ca40a5ae4cfeb2166e1d44bc265c191e45815e4b8aed9618ec2
194 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.cc, disguised as a download for "the book thief pdf with page numbers". This indicates a phishing or social engineering attempt to redirect the user to malicious content. The ML classifier strongly supports the malicious verdict.

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=the+book+thief+pdf+with+page+numbers In PDF document text
    • http://files.ketogenicpetfoods.com/uploads/1/3/2/6/132680905/rakegerasefule_nupola.pdfIn PDF document text
    • http://files.merrimackreview.com/uploads/1/3/1/4/131453555/d2772eb778b245.pdfIn PDF document text
    • http://jijeki.laurelhistoricalsociety.org/uploads/1/3/1/3/131380729/e3bdfb35db381.pdfIn PDF document text
    • http://files.minymabooth.com/uploads/1/3/0/7/130775704/lasaxalanate.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/1/0433/8139/1514/files/56074481483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/fonusefadiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8073/6151/files/dozokefaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1345/1430/files/asset_management_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6873/6166/files/21519170727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5891/3689/files/pabexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/31157937695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4963/2412/files/fapovalonilogabusotix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1584/5541/files/31692621518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2182/2120/files/treatment_of_diarrhea_in_child.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 6

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_off00006e1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1E 5668 bytes
SHA-256: d3c7637538a2171bcdfdb3bcdacb00fd14377e9e2c2b0b5d98754c8b375beded
font_01_sfnt_off0000814b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x814B 10248 bytes
SHA-256: 2d5d484e214e8337017cdc623cf793db8182db876b3b855d2257b4f1bee53c39

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