Malicious PDF — malware analysis report

Static analysis result for SHA-256 17b1eb313ef4fb88…

MALICIOUS

PDF

42.8 KB Created: 2020-08-15 03:28:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4101b940ac8c22a4ab9d8751ded3f69d SHA-1: 55a51f7b783608149189c241d845a432f670cebb SHA-256: 17b1eb313ef4fb881ea4576baa19e1fc5089de91afd22e7af167f6aaf6e8078d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to malicious infrastructure. Specifically, the link https://ttraff.ru/wb?keyword=saudi%20arabia%20political%20map%20pdf is identified as a malicious redirector. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or scam 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.ru/wb?keyword=saudi%20arabia%20political%20map%20pdf In PDF document text
    • http://files.coachellascreenprinting.com/uploads/1/3/1/4/131437724/65fc9b6febfa2.pdfIn PDF document text
    • http://firef.ladymillam.com/uploads/1/3/0/9/130969940/6810825.pdfIn PDF document text
    • http://files.charlotteturkeybowl.com/uploads/1/3/0/7/130775737/752c8830cfcaa.pdfIn PDF document text
    • http://files.elixirespressobar.com/uploads/1/3/2/7/132712251/limabopogumi-gibunekevavagus-nifazuz.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/1/0433/0687/7080/files/wuwikeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9266/3702/files/pigapoxirobowefixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2910/0701/files/andhra_pradesh_government_holiday_list_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3657/1805/files/memu_emulator_for_windows_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/gikekosujabinuxizas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/zalob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/98314373264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8094/9659/files/96538755451.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 4

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_off000068aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68AA 5364 bytes
SHA-256: 030f4804f82cb37ab7ecdf8855678aca2c5498b85d816b5041968ed031cf6be6
font_01_sfnt_off00007abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABE 10492 bytes
SHA-256: 689f3f8cbd4d773052be5a49675f91a8fd46d921343c0b6f1b0d39c0938dfd46

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