Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db2cbf800363192…

MALICIOUS

PDF

40.2 KB Created: 2020-08-05 07:39:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc49d09bf0566a47346e60ee60d01fa4 SHA-1: 6ca646d730157b12257b05ff0e597c43d23c46dd SHA-256: 1db2cbf800363192da325647d798395888c40c34de262d026ed507e2193ad0ed
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'monthly current affairs quiz pdf' and the malicious redirector URL. This suggests a phishing or scam attempt where the user is tricked into clicking a link that leads to malicious content, potentially for credential harvesting or malware delivery.

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.com/pify?keyword=affairscloud+monthly+current+affairs+quiz+pdf In PDF document text
    • http://files.goldendoodlesutah.com/uploads/1/3/0/7/130738720/movujezasi.pdfIn PDF document text
    • http://files.camera1.ca/uploads/1/3/1/3/131380413/pizixejawij.pdfIn PDF document text
    • http://files.michellemorrisonwrites.com/uploads/1/3/1/6/131636903/fizuto_woponexopebugur.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/1/0430/5931/4841/files/gojasenalereku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/antropoloji_sorular.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8554/files/11056707744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/evelyn_waugh_brideshead_revisited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/lusejiwugasosazewemole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/19288986090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0703/1966/files/desikesuros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27150836515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/29065954459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/texupebitememetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/57409061208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/pdf_viewer_for_canadian_visa.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 8

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_off00005e6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6B 5660 bytes
SHA-256: 4928e5bf177d53606f93bb64c060366787c56a435b524b577162c0941b679353
font_01_sfnt_off00007193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7193 10116 bytes
SHA-256: 94d19e27a8bca896e20e49bb58e4120d7d5d60e23053ee1c77aa7913b8d6a89c

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