Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed1f5d39c180df22…

MALICIOUS

PDF

46.0 KB Created: 2020-08-04 22:03:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69673b4de7d986753fa0240f0ea55a6a SHA-1: 46acb605f46b3358e4458698f33beb464d1daffa SHA-256: ed1f5d39c180df22d81f372ee661d4fee4d001fbfdccb42a169a8a6c2964cc50
202 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, which is also present in the document body. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The presence of a 'download button' heuristic further supports the lure-based attack pattern. No scripts were extracted, and the document body is heavily obfuscated, but the primary intent appears to be directing the user to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=berliner+platz+2+neu+pdf+download In PDF document text
    • http://files.caribbeandawn.com/uploads/1/3/1/0/131070035/1836999.pdfIn PDF document text
    • http://files.heathercarreiro.com/uploads/1/3/1/0/131070336/lonesexepudi.pdfIn PDF document text
    • http://files.raveim.org/uploads/1/3/2/3/132302966/fuxumediwevuwut-nebirat-walisogadir-lonipefev.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/1/0430/3673/7699/files/minobaxizozufirizom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9596/5352/files/zavawuvik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/keranejunezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2940/5600/files/26604151213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1069/files/20275441870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/56870706782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1733/0075/files/pdf_page_splitter_free_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/24413864802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6025/7177/files/76147938644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7086/4025/files/12654880249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2470/9782/files/23646357518.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 7

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_off0000710f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710F 5180 bytes
SHA-256: bbad328338bbfff0e35e16f7c62447e2d865d7a204b10a04eb1f4e263c3621b8
font_01_sfnt_off000082de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82DE 13204 bytes
SHA-256: c3b3a4610d85a7b3b3088478202ba69fb423b2931fcc8ec2ea4691e5a925123f

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