Malicious PDF — malware analysis report

Static analysis result for SHA-256 87deacd73e86eb83…

MALICIOUS

PDF

34.8 KB Created: 2020-08-14 11:07:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45c0061bd7ae313e39548400ce3e9974 SHA-1: e6aee298e6574ac5c4227cc54642019cc4e3ca3d SHA-256: 87deacd73e86eb83c4d48ab39f7120aba462851ab5c4150efb02e2f7dcbd0a5d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links, including one to a known malicious redirector, `https://ttraff.cc/pify?keyword=confessions+of+a+shopaholic+worksheet`. The document body also contains this URL and numerous other PDF links, suggesting a link farm or phishing attempt. The ML classifier strongly indicated maliciousness, and the presence of redirector links points to an attempt to lead the user to a malicious site, likely for credential harvesting or malware delivery.

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=confessions+of+a+shopaholic+worksheet In PDF document text
    • http://files.snarkypaws.com/uploads/1/3/2/6/132695535/3faee7c42b.pdfIn PDF document text
    • http://fekaxilu.mccoymultimediallc.com/uploads/1/3/0/7/130739573/vadabofew_sidanase.pdfIn PDF document text
    • http://files.missmargueritewilson.com/uploads/1/3/1/3/131380870/wawidoteruxubiziko.pdfIn PDF document text
    • http://files.leahkneipp.com/uploads/1/3/2/6/132696077/wokujivel-sewubax-wonesofixas-neged.pdfIn PDF document text
    • http://files.rockyouthministry.com/uploads/1/3/1/3/131379663/6762612.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/1/0431/6754/7546/files/85354210274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/rukojebutitutuvavezofaxud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/biblia_takatifu_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8706/7291/files/sefanux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4473/2065/files/24271906430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5916/7900/files/cahier_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/64083020891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/33166958305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8577/5519/files/70152998764.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_off00004876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4876 5164 bytes
SHA-256: 1825ed062ae49ef9e9ccf396218f0035240e149063b83794291f5f653b8e9d5a
font_01_sfnt_off00005a13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A13 10208 bytes
SHA-256: 3b82c5a41977d69c654af29691ad2a9e3589bb108bbdbc4fda45d81f818b592f

Open this report in the interactive analyzer, or submit your own file for analysis.