Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a2e10b6bd914b1e…

MALICIOUS

PDF

43.0 KB Created: 2020-08-17 10:13:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13f62ed97cd0b4225ca4c9807a880680 SHA-1: 7778b8178ad08fa54f23ea2d138ac229382b0d86 SHA-256: 7a2e10b6bd914b1e4526b80d24b42cfed2edf80eb22866c6f506d706857f020c
202 Risk Score

Malware Insights

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

The PDF contains a lure related to Excel conditional formatting, but the primary function appears to be redirecting users to a malicious URL hosted on 'ttraff.ru'. This URL is flagged as a malicious redirector and is part of a link farm, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

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=excel+conditional+format+if+cell+contains+text In PDF document text
    • http://files.southforkwatershed.org/uploads/1/3/1/4/131454452/wexudizufebowej.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/1/0429/8558/6841/files/24761523790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2739/0887/files/agenda_escolar_2020_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/wiwasovudesuvemowidekiwer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8881/3988/files/94238238954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lajuvifubukakevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2745/5400/files/sedarojiwak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4096/4759/files/hansel_and_gretel_grimm_brothers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3311/6317/files/jean_anouilh_antigone_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1069/files/housefull_4_songs_pk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3812/9823/files/1109746977.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 3

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_off00005df0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF0 4980 bytes
SHA-256: ea0901a652a400f6290d4a0aa3ada72b7e411a873163b7d26042ef0efe66d7e8
font_01_sfnt_off00006eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBA 10104 bytes
SHA-256: 03fa7ce718731298106ce793884b2d1a42c5808353720ca5ca1c8ab3efb1958d
font_02_sfnt_off0000914d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x914D 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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