Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d4d77bf2781adf…

MALICIOUS

PDF

48.4 KB Created: 2020-08-02 08:15:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68385ab0cc526c21922431642e151ca6 SHA-1: 7b340798f6458be31580efb80cf6c08348cc48af SHA-256: d4d4d77bf2781adfeeafe00c4ccbe89758ac7a8a4944b861ceb84c14ce2d191b
194 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure, disguised as a technical guide. The primary malicious URL, ttraff.com, is flagged as a redirector. The document body, though heavily obfuscated, contains references to the malicious URL and other benign-looking PDF files hosted on Shopify, likely to appear legitimate. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a 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=ubuntu+14.+04+install+nvidia+drivers In PDF document text
    • http://files.jancancan.com/uploads/1/3/1/4/131406413/sosazidisajawaj-ledosol-vaxodavuv-ziwobedomanefon.pdfIn PDF document text
    • http://files.stevenhoy.com/uploads/1/3/0/8/130813818/merexodav.pdfIn PDF document text
    • http://files.feddestudios.com/uploads/1/3/0/7/130776407/4303366.pdfIn PDF document text
    • http://files.sisterspiritwomensharingspirituality.org/uploads/1/3/2/8/132815154/58853863.pdfIn PDF document text
    • http://files.streathamsociety.org.uk/uploads/1/3/1/0/131071258/6341c1b76951.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/1/0428/5428/5479/files/suicide_squad_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35031547028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3654/0069/files/nilelevikibopizulapuxosot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66923604261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/51537675880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/45096814723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/87457179811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40369191557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/92854242654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6365/6099/files/lapemawusejewezib.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD5 5324 bytes
SHA-256: f8f436862fa80d52dbc8d34a75d9bc43a736edba62613652519f167bc4d8d8da
font_01_sfnt_off00008d0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D0C 11864 bytes
SHA-256: 8d14a21a5093c20e9680b2138518e0ddd552a7909fa6f1fb3d492b96724d6b38

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