Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe97545c5477426…

MALICIOUS

PDF

34.3 KB Created: 2020-08-15 02:59:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76eed970be32e3c9cae43f0183760f4a SHA-1: 1d10da4591b1f3266c4e66f9fd933aadd5b609e4 SHA-256: afe97545c5477426142a3c3932283e298fcf0b35abc18bf8b1d6f6820b68d5b0
202 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, characteristic of a link farm designed to improve search engine rankings or distribute malicious content. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=brother+song+whatsapp+status', is flagged as a known malicious redirector. The presence of a visual download button lure further suggests a deceptive intent. The document body contains garbled text and metadata, indicating it is not intended for human consumption but rather as a vehicle for the embedded links.

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=brother+song+whatsapp+status In PDF document text
    • http://sotowo.kauaideeptissue.net/uploads/1/3/0/7/130775511/8827089.pdfIn PDF document text
    • http://files.auntiecathycares.com/uploads/1/3/2/3/132303270/6f158875.pdfIn PDF document text
    • http://zexupes.houndtownhockey.com/uploads/1/3/1/3/131383775/3854005.pdfIn PDF document text
    • http://vipuxena.athlons.uk/uploads/1/3/1/3/131398134/8449214.pdfIn PDF document text
    • http://files.wageandhourcalc.com/uploads/1/3/1/4/131411474/9503628.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/1/0428/3557/4943/files/pidifemapejaxoradonudaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53978683100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0163/4213/files/hashmap_iterator_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5353/0788/files/37992213384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/dibosanisijimigat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sedafasejizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0302/files/rajudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7880/9755/files/dizupat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5274/4349/files/theory_of_biogenesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8982/5687/files/calendario_2020_sep_mexico.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 2

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_off00004939.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4939 5188 bytes
SHA-256: 51288035bdf2ec729c4b17b80cdb1357d69cc33d0983f1d97a0f6d096881ffae
font_01_sfnt_off00005aed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AED 9880 bytes
SHA-256: 925a3e80bbe2dc053b0fc170047794a7bd6c4ba1d67c647099bc0b843ca79279

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