Malicious PDF — malware analysis report

Static analysis result for SHA-256 e736db03f89c842f…

MALICIOUS

PDF

38.8 KB Created: 2020-08-07 05:59:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 86056ad4c5e6fe20a30f9304df9f20a9 SHA-1: 79ef76f511c04d9a14707a636a53464f64d6763f SHA-256: e736db03f89c842f65518aab87e59aa1afde63c05cd11f8d15d64f66d8aa1cee
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also contains this URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to benign Shopify domains, likely used to obscure the malicious redirector. The primary malicious URL is 'https://ttraff.com/pify?keyword=akuntansi+biaya+edisi+2+pdf'.

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.com/pify?keyword=akuntansi+biaya+edisi+2+pdf In PDF document text
    • http://files.luxaeternasolar.com/uploads/1/3/0/7/130775108/nipusenivobe-kipazimunika-jokiwoxenes-lamemasuxoru.pdfIn PDF document text
    • http://files.reneubeauty.com/uploads/1/3/1/6/131636927/tebuvarutu.pdfIn PDF document text
    • http://files.mostblessedtrinityacademy.org/uploads/1/3/0/7/130738903/729357.pdfIn PDF document text
    • http://files.fear-lesstherapy.com/uploads/1/3/0/7/130739265/1207411.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3434/5625/files/analytical_chemistry_by_gary_christian_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/2998/files/zofedobesal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4456/files/sadixewikitijalebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2804/3160/files/76370698934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7505/1424/files/dawesavomirop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8251/3561/files/sorting_algorithms_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/nearest_neighbor_matlab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9431/9009/files/winanetef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3654/0069/files/91060462814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rojifibopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/26591500587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8982/9800/files/18046685513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/60714658459.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F1E 5104 bytes
SHA-256: 173c3ae8cb6ebac993b18ac09f54dca29f0cf7ba539d01028ff7a18d25132e51
font_01_sfnt_off0000608d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608D 9244 bytes
SHA-256: 89f43d3898b7f7bf82fe6bdff2a74f4aa0273182c9121dcb61f284dfbb42adac
font_02_sfnt_off00008034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8034 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c