Malicious PDF — malware analysis report

Static analysis result for SHA-256 e19d2831f560196c…

MALICIOUS

PDF

44.1 KB Created: 2020-08-03 12:52:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0bd001449bad75d3b73321d52b1d0af6 SHA-1: 6872f3b4ddb5d7a86461ca9e0c3d3a68f406fd02 SHA-256: e19d2831f560196ce20f61d6f59d5e92c6e02f2b80351ef627d2350a9f617eec
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links redirects to a known malicious redirector, ttraff.cc, which is disguised as a download for study materials. This indicates a social engineering attempt to trick users into visiting malicious infrastructure.

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=ssc+stenographer+previous+year+paper+pdf+download In PDF document text
    • http://files.notjustanotherhomosexual.ca/uploads/1/3/2/6/132681452/renutov.pdfIn PDF document text
    • http://files.ericksoneducationalconsulting.com/uploads/1/3/0/7/130739648/4837537.pdfIn PDF document text
    • http://files.undercoverchefs.net/uploads/1/3/0/7/130776594/jisawitodinuma.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4323/2661/files/moxefas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9090/1144/files/51917508179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/97595347636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4573/9941/files/82654441847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4722/2422/files/gaxulafimakame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5187/4466/files/statistical_methods_in_medical_research_book_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5468/5599/files/pdf_editor_text_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2599/7722/files/garmin_920xt_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/13624204887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3094/3643/files/piworufukelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5665/0645/files/fitafofoboleruxaxozamemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8130/9085/files/84584879202.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_off0000606c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606C 5772 bytes
SHA-256: cc731b1bf2a18790d08088d86f5c473284000e4bfb80ed9bb4268929942b642a
font_01_sfnt_off00007429.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7429 10380 bytes
SHA-256: 190ca2610154cef6adbedaa29dc343fce1f53f0706cc52668f3149739447f130
font_02_sfnt_off000097a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97A4 2832 bytes
SHA-256: d7a1248cabf161ff78a072bd924b98f1b4e551660f4e151c9433689786990c0c

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