Malicious PDF — malware analysis report

Static analysis result for SHA-256 aab29b178b49fdbf…

MALICIOUS

PDF

37.5 KB Created: 2020-08-12 13:43:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c9a2d2498196c56e7f199b11d97a043c SHA-1: 68e85f52abae8ae19c9c900ff8ae296a56a3d093 SHA-256: aab29b178b49fdbf31c799805b3285c251f468b2b3eed7e35f3b5be853385f81
234 Risk Score

Malware Insights

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

The PDF contains a lure to download content, directing users to click a link. This link, 'https://ttraff.cc/pify?keyword=baba+yetu+pdf+download', leads to a redirector associated with malicious activity. The document also functions as a link farm, pointing to numerous other PDFs hosted on Shopify, likely for SEO manipulation to increase visibility for malicious content. The presence of multiple embedded URLs and the redirection heuristic strongly indicate a social engineering attack aimed at driving traffic to malicious sites.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=baba+yetu+pdf+download In PDF document text
    • http://pimibi.covert-pi.com/uploads/1/3/1/4/131453870/d4305f5f.pdfIn PDF document text
    • http://files.savorlifenutrition.com/uploads/1/3/0/7/130775402/muruzavekelewe.pdfIn PDF document text
    • http://files.theoriongrouppodcast.com/uploads/1/3/1/6/131606491/zerovuravowov_gososuxenuvimi_nafewulin.pdfIn PDF document text
    • http://libuzo.paintthetv.com/uploads/1/3/1/8/131857152/7a20e.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/1/0429/2693/2124/files/94387180359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/pejovedowedebelaluj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6254/9910/files/2952440102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8325/9285/files/rozasuroloditovowewag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4448/7836/files/88124816815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9359/0167/files/android_onenote_import.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3427/2159/files/joxamadinosaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4764/8406/files/81037647556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/vufuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/89665223948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3536/8346/files/4445958189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4953/2069/files/10868230894.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AB8 5144 bytes
SHA-256: 0b3556fbb89040c63fe2ebe11cd9cc41cafa2025613d9f5fd1e4575fc7ba33be
font_01_sfnt_off00005c5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5F 13704 bytes
SHA-256: e4499c67746695e921c7d6f26dc92f6f7fdab3290e49a0f31462b1eecd628856