Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb0a92dcf9c4a842…

MALICIOUS

PDF

42.7 KB Created: 2020-08-23 05:57:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eff50a64173c26b106d00b90ffbdf3eb SHA-1: c10cd97de68123c0da3892c16db9abba181810a1 SHA-256: bb0a92dcf9c4a842201976e2eb20c33f014050d31cc364e2a9fe6bea0b812a05
194 Risk Score

Malware Insights

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

This PDF document contains a link farm and a critical redirector link pointing to a known malicious infrastructure. The ML classifier also flagged this PDF with high confidence. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ngu+idle+augmentation+guide, which likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a malicious redirection attempt.

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=ngu+idle+augmentation+guide In PDF document text
    • http://jedufa.nod-production.de/uploads/1/3/2/3/132303410/majowirajuzigalojufi.pdfIn PDF document text
    • http://files.jchvacglobal.com/uploads/1/3/1/6/131607321/pironosezaroxu_rosarapel_fawejefivodixu.pdfIn PDF document text
    • http://detone.meigrayselect.com/uploads/1/3/1/3/131378950/27c8bc410a.pdfIn PDF document text
    • http://files.stemstudentinfo.com/uploads/1/3/2/6/132695681/nebiv.pdfIn PDF document text
    • http://tewel.handstampedbycheryl.com/uploads/1/3/1/0/131070493/3dda80f5a.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/1/0431/4054/6714/files/73753872160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2717/7380/files/24776610212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5996/0218/files/manualidades_navideas_hechas_con_cd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/miwugiwuzasawofipopav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/free_math_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6708/8800/files/8720034072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6490/6148/files/building_skills_for_the_toefl_ibt_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4603/4846/files/lotopezewinuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3492/7513/files/96659670837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9038/5823/files/chemistry_notes_spm.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 2

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_off00006a7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7A 4840 bytes
SHA-256: 410a086ac0a9ce23ab6319f20f31c36bfada4e35ce11869303afe51fc9a5c405
font_01_sfnt_off00007ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE4 10308 bytes
SHA-256: 088a96ab4955f02671a00c3239270566cf9b22422d943d6ed32ffff7f022b829

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