Malicious PDF — malware analysis report

Static analysis result for SHA-256 92ab5d222052921f…

MALICIOUS

PDF

39.6 KB Created: 2020-08-09 22:51:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1947e927dc05a0d4ace724d49bf9e87c SHA-1: 196490cd1daa1a6e411f00b823438b8066e4e786 SHA-256: 92ab5d222052921fd8e40e4793c20efceab70391dfa69010b0bf1045e3b3d2a6
234 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, disguised as a free download for PDF to Word conversion software. This tactic is commonly used to trick users into downloading malware. The presence of a password-protected archive lure further suggests the document is intended to bypass security filters and deliver a malicious payload.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=change+pdf+to+word+software+free+download In PDF document text
    • http://files.harwellenterprises.com/uploads/1/3/1/4/131453144/vunamerob-sisudozosare-wukibat-pagimofa.pdfIn PDF document text
    • http://files.faithssrd.com/uploads/1/3/1/3/131379553/sudim_roranogumovebal_komijameba.pdfIn PDF document text
    • http://files.debstaubdesigns.com/uploads/1/3/2/7/132712206/5059999.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/1/0433/5498/0505/files/mabomafep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/free_printable_multiplication_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3437/7377/files/new_balance_sheet_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4315/8166/files/36164885579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9139/3698/files/dezuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2935/6959/files/soveludefiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8942/8637/files/66560530004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4388/9052/files/cricket_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2299/9964/files/adrenergic_drugs_medicinal_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0305/1171/files/ximelodafawepili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2027/1272/files/environmental_engineering_science_nazaroff.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/54146850650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6387/files/modele_attestation_de_travail_maroc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0679/5686/files/ielts_reading_passage_practice_with_answers.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_off00005da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA0 5300 bytes
SHA-256: 8ebd3d6b61262d2b5b1fe83a51c78825beaed602edb394868727038e9e6a8933
font_01_sfnt_off00006fb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB5 9852 bytes
SHA-256: f259d2374631aee88e6bf4945ea8604c821fc7d7d031377fc4857ccd76a4149e