Malicious PDF — malware analysis report

Static analysis result for SHA-256 291423d06a46362e…

MALICIOUS

PDF

46.6 KB Created: 2020-08-22 01:56:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e508f854874a02682c5d3f5213cb8967 SHA-1: ab79fff51b2b6d8c1cf672a632c35ef2cdf00d8e SHA-256: 291423d06a46362eb27e5ac2e8173bcc0e4be963993d7746a00a9430c556f06a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded URLs, many pointing to a link farm hosted on cdn.shopify.com, and one critical URL leading to a known malicious redirector at ttraff.ru. This indicates a likely attempt to drive traffic to malicious sites, potentially for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this 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.ru/pify?keyword=spring+boot+jasperreports+github In PDF document text
    • http://folupe.bayareamuslimtherapists.org/uploads/1/3/1/3/131379163/1096155.pdfIn PDF document text
    • http://files.wsdar.com/uploads/1/3/1/4/131482931/merate-pajofizixalugow-jofexokib.pdfIn PDF document text
    • http://rutuj.roannacochrane.com/uploads/1/3/0/7/130775792/koxiz_nipeniwef_lilujazelu_niwafijav.pdfIn PDF document text
    • http://files.ncrehabassociation.org/uploads/1/3/1/6/131606121/lixinagigu-pelezeraxuwo-totabitigid.pdfIn PDF document text
    • http://files.holmeschan.com/uploads/1/3/2/3/132302999/617a485c44018f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5395/files/worovikorodebeluzogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1430/6467/files/nupefixetekisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tuwaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0700/0219/files/48449004682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4999/2870/files/ar_verbs_present_tense_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/phaseone_capture_one_pro_11_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8812/5857/files/42714342551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7217/6796/files/xudosabejirilegopisad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/7731/5233/files/buku_agama_islam_kelas_12_kurikulum_2020_revisi_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4995/1138/files/curso_de_ingles_en._para_descargar_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8244/0103/files/nulewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5795/4467/files/jitemukupuridaf.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5564 5368 bytes
SHA-256: 1953e3bbb90d11720c2ecfbb71c381fe953e0e4d73267b6e99cfe83fc4c265a2
font_01_sfnt_off00006790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6790 9664 bytes
SHA-256: 0427a5bf4473aa979ebb8f42a1b73a35dd13a72629c0e3bf45cc22188b2f4f62
font_02_sfnt_off00008272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8272 13384 bytes
SHA-256: 826bd7b9a96523f341774ddb584c9f37cb3042f22d5090fb8dc17a7eb3f99a7e