Malicious PDF — malware analysis report

Static analysis result for SHA-256 199da76e6813c983…

MALICIOUS

PDF

45.2 KB Created: 2020-08-10 23:22:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4bc05ac37ab946358679e0198fad10e8 SHA-1: 5ad6536f3b66e0d0fc1a906039590f155c7183db SHA-256: 199da76e6813c98365d67558fe962bf5d0a344fa9a96293ccfcd54645dd9b24e
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as free downloads for technical manuals, but they redirect to malicious infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=arcgis+10.+6+manual+pdf, which is flagged as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lure users to malicious sites, likely for phishing or malware distribution.

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=arcgis+10.+6+manual+pdf In PDF document text
    • http://files.grandviewlodgeandresort.com/uploads/1/3/1/3/131379409/8c12cb2f9.pdfIn PDF document text
    • http://wipizo.georgelloyd-jones.com/uploads/1/3/0/7/130775732/keboka-topozagipig-jomerumokijo-ninevexumex.pdfIn PDF document text
    • http://nulabo.martypjordan.com/uploads/1/3/0/7/130776485/feroditivonuxuze.pdfIn PDF document text
    • http://files.shadeswestpalmsprings.com/uploads/1/3/1/3/131384171/ligaloja-pirujoxopakizi-sifovazuvekol-fosetezifiniv.pdfIn PDF document text
    • http://files.earthlingdesigns.com/uploads/1/3/0/8/130813514/1547979.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/1/0431/9579/3568/files/clinical_pharmacy_and_therapeutics_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/windows_installer_cleanup_utility.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/61626517335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kilezibuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1220/9315/files/dictionary_of_theological_terms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13534048661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/55156576648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1955/9335/files/86751717444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4016/files/72060748859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1474/8322/files/english_speaking_course_ebook_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/57072677331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1055/5041/files/bemonc_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0937/5383/files/povibudumubepub.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6593 5420 bytes
SHA-256: 41e594ca68e1a433afaa65b05a763758258e9973c677c382cf5334831be897d9
font_01_sfnt_off000077dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DD 9920 bytes
SHA-256: be31d21ba22ba09e59c69e673523bad67c9f0d787ea115b71dc8c37cf0a5588d
font_02_sfnt_off000099dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99DC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f