Malicious PDF — malware analysis report

Static analysis result for SHA-256 9757bfe2080067a4…

MALICIOUS

PDF

38.6 KB Created: 2020-08-25 09:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82d863304cb7545a3e103ea0beb649e9 SHA-1: fb4cf22d8a74fe4dcd5f0a5b6e522c830982112d SHA-256: 9757bfe2080067a41748b1e208d65665b7120acff2b45edd49a2f83f9de9735d
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to a URL that spoofs a job portal. This link is embedded within the document body, suggesting a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL reconstructs to 'https://ttraff.cc/pify?keyword=deutsche+bahn+karriereportal+anmelden', which is a clear indicator of a phishing or redirection attempt.

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.cc/pify?keyword=deutsche+bahn+karriereportal+anmelden In PDF document text
    • http://files.cypressparkflairs.com/uploads/1/3/0/8/130874296/vorowab-vagegikazedi-kazejiwasurev-nujitekabum.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/1/0448/2033/2705/files/obs_twitch_chat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/1460/7263/files/iphone_5s_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0331/3308/files/shoulder_arthroscopy_rehab_protocol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6517/2387/files/tibavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9462/files/rudonawenoxunesakuluzex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/68010700716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4429/5076/files/alice_cooper_poison_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9820/5349/files/application_of_computer_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6897/1415/files/52584625196.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4878 5400 bytes
SHA-256: 63e4ab1eea55ddf1313d9402e11655f1afaf93139731cba1b61a43b2b9ff5201
font_01_sfnt_off00005a95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A95 10748 bytes
SHA-256: e700c30dd7f612646dcfc9c43dfb0a6334e821804db975aa87402c8055e3b3eb
font_02_sfnt_off00007e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E17 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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