Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c94a0f6e5f8039…

MALICIOUS

PDF

49.9 KB Created: 2020-07-27 19:04:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ecedfabcb7b4ba05507a11e816c276b SHA-1: a76f63a79ecc65b73d29a593e1c2ed15ec55124f SHA-256: 47c94a0f6e5f803975f96742c047462e292d6cc184a6fc9f1396181eb481b9e8
202 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to Shopify domains, suggesting a link farm or content redirection strategy. One critical heuristic indicates a malicious redirector link to 'ttraff.ru', which is likely part of a phishing or malware distribution chain. The presence of a 'download button' heuristic further supports a lure-based attack pattern. No scripts were extracted, limiting the analysis of direct payload execution.

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.ru/pify?keyword=academia+school+simulator+apk+pc In PDF document text
    • http://files.nodaplarchive.com/uploads/1/3/0/8/130874110/zidewepovan.pdfIn PDF document text
    • http://files.handcraftersbarn.com/uploads/1/3/2/7/132741556/raxirutawi-duguginado-bovimuviw-tuxasad.pdfIn PDF document text
    • http://files.westfielddentalpa.com/uploads/1/3/0/7/130775942/bavef_kezujuwusuk_javexolizepun.pdfIn PDF document text
    • http://files.ukuleleclub.org.uk/uploads/1/3/0/8/130813887/totalubufo.pdfIn PDF document text
    • http://files.ledolas.com/uploads/1/3/1/6/131637056/xazaxofonudirul-rezefo-wurafutiz-bonuwom.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/1/0428/9835/8432/files/dobemajafapurotexujebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96989945255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9062/4158/files/22798666255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kufanagapaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6751/4788/files/mapedowadep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5765/files/woxotox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8578/3447/files/24509693880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3789/1480/files/46921663437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5896/1315/files/3729234883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8068/7524/files/xizuzapit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zurutadodusabexefiba.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_off00007ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE7 5144 bytes
SHA-256: bf01224bd507fd895f2035b06eed8aae2e45669fe665d7d44a4f5dfefb735bd3
font_01_sfnt_off00008e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E54 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off000096e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E2 10244 bytes
SHA-256: a837a4eaacf5d8744a85bb515ae377f2e9915f57b4e52c1d2c475f42218593e7