Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f5d2dfffa934627…

MALICIOUS

PDF

47.6 KB Created: 2020-08-23 01:54:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b8d39bdc395b8ae13d435e7518e572db SHA-1: f514b67770cd940e60ffb0fb6d47a83024c72a6d SHA-256: 1f5d2dfffa9346272c53c8f1a60208a5f37f9d91b9e508c0a9f0e9fff300e849
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com, which is used to lure users with game-related keywords. The document body and embedded link structures confirm the intent to direct users to external URLs, likely for further exploitation or phishing. The presence of numerous Shopify-hosted PDF links, while many are benign, contributes to a link farm strategy to obscure the malicious redirector.

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=binding+of+isaac+rebirth++mac In PDF document text
    • http://files.lukaswolfacupuncture.com/uploads/1/3/1/8/131871720/2635b399.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9846/2624/files/47854052732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5589/3928/files/angielski_biznesowy_sownictwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2383/4011/files/aulad_ke_huqooq_in_islam_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7450/1285/files/61914477118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4327/4395/files/jukejawepis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1407/9143/files/le_caoutchouc_naturel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/approximation_for_bank_po.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9177/2063/files/25130249156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/pemerejitazawevezikuf.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 2

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD6 5380 bytes
SHA-256: 429f4b0590928ed24fb7388a795ed690a1a72e5db97715a691810c523d88b154
font_01_sfnt_off00006ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF1 4100 bytes
SHA-256: 0f6dedbbf970a97b5afa8f15f10735423d76a7868a9727c66ff013c16f37519b
font_02_sfnt_off00007edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDB 10740 bytes
SHA-256: a6d8e3d511a3e5362cb1cbbd594a9bb63274078f32ffcaa0bdd3daf255337041
font_03_sfnt_off0000a38f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA38F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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