Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4b545003e1a5864…

MALICIOUS

PDF

48.7 KB Created: 2020-08-16 22:42:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 21975e57c6eaa907828a2d5428b8d886 SHA-1: 1a82993deb0872fcd9ad072e936f921ffd173087 SHA-256: c4b545003e1a58641c46b842f8c7134f7ce831b336c616622bad15ded8298076
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=lagu+blackpink+playing+with+fire+live'. This URL is likely used to redirect users to a malicious site. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, including 'https://cdn.shopify.com/s/files/1/0428/7135/7596/files/fikiliginit.pdf', suggesting an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The ML classifier also strongly indicated maliciousness.

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=lagu+blackpink+playing+with+fire+live In PDF document text
    • http://files.landisgreat.com/uploads/1/3/1/4/131437878/vasufe_mipezitija_kijakiko_pozivekigipip.pdfIn PDF document text
    • http://files.chicagomusicreport.com/uploads/1/3/0/7/130739202/7741734.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/1/0428/7135/7596/files/fikiliginit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/to_csv_pandas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/33701604636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5664/4774/files/angola_zip_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8286/5047/files/gunavitefomijizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/14022724854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1367/5928/files/kovofijodunatinesukosud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/keto_diet_meal_plan_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5850/3590/files/88205343777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8553/6161/files/cpr_infant_and_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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B4C 5496 bytes
SHA-256: ec4fc26476c7081860dfd1edf4cb32bcf4537ef4682634fa719477d57f9cfde1
font_01_sfnt_off00006e1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1A 15496 bytes
SHA-256: c28f9e76c4a166249348fcd805aacd0fedf03f0ad69b0cc0aed34c7ed01c1b14
font_02_sfnt_off00009e32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E32 16204 bytes
SHA-256: 95f2a8319533f051e584a9e2aa38e8d42f7eb419abe795cf0dce2d6390e2c0a0

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