Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed1078520cb615cb…

MALICIOUS

PDF

49.8 KB Created: 2020-08-19 16:14:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 201826196758e1a0bbc648a3aa9a3b25 SHA-1: 3dab50cd294a8555978045e715ab210639342ddf SHA-256: ed1078520cb615cb902e9a1647c7923ebd681368636e1837345def3cd522042c
202 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector link and a link farm, disguised as a payment acknowledgement letter template. The primary malicious URL identified is https://ttraff.ru/pify?keyword=payment+acknowledgement+letter+template, which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to the payment lure and the malicious URL.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=payment+acknowledgement+letter+template In PDF document text
    • http://files.rabbiklein.com/uploads/1/3/0/7/130738534/karavididujal-mukawimaxumekax-genawada-munovine.pdfIn PDF document text
    • http://files.papermagicbook.com/uploads/1/3/1/8/131860787/nelakojopotazedi.pdfIn PDF document text
    • http://babawad.406cavoodles.com/uploads/1/3/0/8/130813528/gunivexigifasawinode.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/1/0430/6714/6397/files/mathematics_grade_7_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7930/2296/files/call_break_playing_card_game_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/nomiwebivolidamakiserav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/vebeginuvuwutanivakitoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2501/4685/files/tv_guide_sydney.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/14691049640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4325/0588/files/4169389449.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_off000079f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F9 2828 bytes
SHA-256: 85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f
font_01_sfnt_off000083f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F3 5472 bytes
SHA-256: 795c2b209eb2b8e35112a7e9e5a8891572f749a963620e00042de71711249a03
font_02_sfnt_off00009690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9690 10364 bytes
SHA-256: bf032ed96cfce0ed64f0a98209a3c86d04aa6370ca19f74a18b8154cacb2b9df

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