Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c4ae50b2303e957…

MALICIOUS

PDF

52.7 KB Created: 2020-08-07 14:21:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1558bbe93a8a5949bf61bc268177483 SHA-1: 70a9d0d57b390044801b66b4418f23b226039cfa SHA-256: 2c4ae50b2303e957c9abde05e45e71da7c72d957c2687be8790c506a9216eca3
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=camera+terms+pdf'. This indicates the document is designed to lure users to a malicious site. Additionally, the PDF exhibits characteristics of a link farm, with numerous external links, many hosted on cdn.shopify.com. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious redirector URL is sufficient evidence for the attack pattern.

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=camera+terms+pdf In PDF document text
    • http://files.juliemakeshealthyfood.com/uploads/1/3/0/7/130775619/pirogo-badevoxofulutoz-xurosevobab-zuvis.pdfIn PDF document text
    • http://files.hightechtintplus.com/uploads/1/3/2/3/132302973/47aff28564.pdfIn PDF document text
    • http://files.triandrunfitness.com/uploads/1/3/1/4/131453048/115096.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/1/0433/3902/2494/files/bible_translations_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7667/3946/files/3237167903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/lelilupelexutepopoxinodaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3116/7137/files/42210854139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/banelaranesoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0472/6168/files/wardlaw_s_contemporary_nutrition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/89941244664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/xijunuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/tonujukijuzofivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9919/9390/files/champions_league_schedule_2020_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7745/9365/files/fowenadimuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7300/2902/files/84225138303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4888/5662/files/git_tag_remove.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8462 4704 bytes
SHA-256: 58a21c1822a3ac742e167c2025465cc1b94faac9c311fddb53a6c47f182960a4
font_01_sfnt_off0000945c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x945C 10288 bytes
SHA-256: 178088e45761d00a2d5e8fa17c0e183372c9d585e7b246864d67a590f3ccd584
font_02_sfnt_off0000b799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB799 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361