Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b52e3779f7ee653…

MALICIOUS

PDF

47.3 KB Created: 2020-08-07 03:54:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab2a551b6dc992916cd505af2c8118c7 SHA-1: 50959c236865b270050f50ed04e90bb1932ea446 SHA-256: 2b52e3779f7ee6532d87338ae965f82e0f1b53aae0e9b06a393712bb2e89ce8c
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one link pointing to a known malicious redirector. The document body also contains a call-to-action phrase, suggesting a lure to trick the user into clicking the malicious link. The redirector URL is likely used to deliver a second-stage payload.

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.cc/pify?keyword=vedic+mathematics+books+pdf+free+download In PDF document text
    • http://files.waysideresources.com/uploads/1/3/0/7/130775400/pinopibek.pdfIn PDF document text
    • http://files.mymaryjanerehab.com/uploads/1/3/1/3/131380598/cbc9a2cf0687fb4.pdfIn PDF document text
    • http://files.pvenw.org/uploads/1/3/0/7/130776206/d4d876656776620.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/1/0435/2658/6532/files/moresipakusoruwimub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4865/7318/files/18534451914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/fovamorofurival.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2521/0263/files/apollo_munich_easy_health_premium_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3121/5780/files/kukesepede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0678/files/libro_para_colorear_animales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/56179197846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1762/3957/files/65164149488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/76112507102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4692/0615/files/bodivun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7442/9852/files/94691016294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4583/1324/files/xomejumabelabupi.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 8

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_off00006aa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA2 5444 bytes
SHA-256: 367ee2310e946c0177031c74cdb028604025521246c73ae2aa164db86b9e64d4
font_01_sfnt_off00007d04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D04 11092 bytes
SHA-256: 634ce156772f14d19769d874dd740d931b946dfb77b0d74f59d9700bdd279494
font_02_sfnt_off0000a18a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA18A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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