Malicious PDF — malware analysis report

Static analysis result for SHA-256 95e2567f1a880170…

MALICIOUS

PDF

42.0 KB Created: 2020-08-20 02:39:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a150432af6c9c5fdff3c2d4a7f84772c SHA-1: f5b05667af23e71031780738cf67d0064d39a0fb SHA-256: 95e2567f1a880170867f86addb58efcdbff30c7081079b8e7e28eeb786702c93
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One prominent URL, 'https://ttraff.cc/pify?keyword=offline+grammar+checker+app+for+android', is identified as a malicious redirector. This suggests the document's primary purpose is to drive traffic to malicious sites, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=offline+grammar+checker+app+for+android In PDF document text
    • http://nazipero.150spear.com/uploads/1/3/2/6/132682533/dikakematitan-bisilixe-kewakem.pdfIn PDF document text
    • http://files.smosparish.com/uploads/1/3/1/4/131438848/sileluzabimas.pdfIn PDF document text
    • http://japisivig.vibrows.ca/uploads/1/3/0/9/130969306/1050441.pdfIn PDF document text
    • http://files.milleratcree.org/uploads/1/3/1/4/131454916/291ff4f35050db.pdfIn PDF document text
    • http://jimapud.jakesmoviestuff.com/uploads/1/3/2/8/132815986/ditoj.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/1/0438/2159/6834/files/valufupiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/spring_framework_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9614/6073/files/tizazomivilebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6435/1130/files/34707606382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8355/4202/files/69567799328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2441/1806/files/auditory_brainstem_response_interpretation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/jawoxozosev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1627/3563/files/fogomurigibozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/jugonusavukalexowawup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7926/9541/files/55977912053.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6724 5480 bytes
SHA-256: 191f8cd6e2920069a0d15d91df22eb7318bf7a36f8630014c0262b8717b93119
font_01_sfnt_off00007993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7993 9808 bytes
SHA-256: 823bfc1365946d3b05c4a82c248011419eb649acc2d4d222901178a716c710ce