Malicious PDF — malware analysis report

Static analysis result for SHA-256 a242a76ba665c916…

MALICIOUS

PDF

49.7 KB Created: 2020-07-29 10:12:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49027510933a6a998b3d76086021c229 SHA-1: a3985342f6f333cca7c851b6d3c10d65eb5f9e4d SHA-256: a242a76ba665c9169de2d63f05f93c2fd365c3ef1f9d95ecf0004ef0dbfa0e6e
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link at 'https://ttraff.ru/pify?keyword=johor+state+public+holiday+2020+pdf' leads to malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests a large number of outbound links, with 'https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gowaluzefep.pdf' being the first identified. The document body, though heavily obfuscated, contains text related to 'Johor state public holiday 2020 pdf', likely a lure to disguise the malicious intent.

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=johor+state+public+holiday+2020+pdf In PDF document text
    • http://files.chuckpisa.com/uploads/1/3/0/7/130739415/bosepa.pdfIn PDF document text
    • http://files.spiritfireshaman.com/uploads/1/3/0/7/130739470/81eea3dfd.pdfIn PDF document text
    • http://files.carnarvonraceclub.com/uploads/1/3/2/6/132695730/7497085.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/1/0433/0687/7080/files/gowaluzefep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2841/4618/files/mibedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/vuveloxinikigogozepevumop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/dojuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2385/8850/files/jamobedozaxavizolid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9602/9864/files/xenofumotozom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5592/2856/files/povilepofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/jazasugaraxodalupidenugab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2059/7922/files/kafunagizifetawowidijal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2541/3782/files/92658018481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/46592622885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7142/2115/files/71228471121.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000838d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838D 5524 bytes
SHA-256: 1d60e7355676477e89429078e8a511bd30df5110a1245f7d845ff9692b9404e0
font_01_sfnt_off0000966d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x966D 10244 bytes
SHA-256: 9f11dbf426e4bece1e1c73c8d17ccb85c260ad8800576867f839193a6e5e1cb6

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