Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eb99d3f3f0eb619…

MALICIOUS

PDF

47.0 KB Created: 2020-08-12 15:27:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55c1e2b6ca03b6ec22816c38537b5477 SHA-1: e4595c9cd984c6c7eb7035fdc33dfaeada4b85b8 SHA-256: 3eb99d3f3f0eb619fbcf1a77f86182d714514b418a91ca5cc60ef670bea149c9
202 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which are part of a link farm designed to improve search engine rankings. One prominent link directs users to a malicious redirector at 'ttraff.cc' with a lure related to downloading the Quran. This suggests a social engineering tactic to drive traffic to malicious infrastructure. No scripts were extracted from this sample.

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.cc/pify?keyword=al+quran+ul+kareem+pdf+free+download In PDF document text
    • http://files.nobbysyoga.com/uploads/1/3/1/1/131163949/buvuzit-jarelusoz.pdfIn PDF document text
    • http://files.theadvicelady.com/uploads/1/3/1/6/131637136/xitakenub-gaxiwojirag-levizafujakumax-wugerozu.pdfIn PDF document text
    • http://files.adamsfarmliving.com/uploads/1/3/2/6/132696598/9865213.pdfIn PDF document text
    • http://files.artcreate.org/uploads/1/3/0/8/130874139/vumoxowanaf_bojen.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/1/0431/0918/7750/files/8241368364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72707516801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/71248250880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2133/5702/files/25538781025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2028/8153/files/3646390026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/pupalaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2030/3006/files/gukixutejezagafabepasev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6369/5770/files/tezawabekoxoliwix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4173/4307/files/26664489705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7182/3267/files/95205585355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4017/7314/files/govajidivunimiwoxa.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F3 5280 bytes
SHA-256: e831f2c0e391d795df3c02760b8e007e671d1a4c282598d1c8f9f1247707e8fc
font_01_sfnt_off000069da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69DA 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00007267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7267 10496 bytes
SHA-256: 3cbd6cd9b86ea0fddeeb51fc9134208ac709c396d68d1c98f6c64747006e38a4
font_03_sfnt_off00009676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9676 16796 bytes
SHA-256: 8e009ae25be6758fac5e1c6527d57145e1709c79826d1489f465278ae6f0c312