Malicious PDF — malware analysis report

Static analysis result for SHA-256 188f9d2deb82de01…

MALICIOUS

PDF

46.7 KB Created: 2020-08-19 11:05:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6bd600522426d3e01132b9db7425e0f1 SHA-1: cd3cec3698ceef890e0f8ed49fadefed71eacd47 SHA-256: 188f9d2deb82de01e6c485798c9f255024e980340b3ab54e6a8ba796edb2f99d
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically advertising a lure for 'bejeweled blitz unlimited coins apk'. The ML classifier strongly indicates maliciousness, and the presence of numerous external links, including a redirector, suggests an attempt to lead the user to a malicious site. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.com/pify?keyword=bejeweled+blitz+unlimited+coins+apk In PDF document text
    • http://sifafanoz.shopasbonline.com/uploads/1/3/1/0/131070420/f7d0a5.pdfIn PDF document text
    • http://palur.millerptorlando.com/uploads/1/3/1/4/131482826/towut.pdfIn PDF document text
    • http://files.clearfieldarts.org/uploads/1/3/2/6/132695575/galofuvifevoz.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/1/0433/0595/9588/files/37299130191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4169/2580/files/punobesigutadugoxevigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8073/6150/files/pevesujap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9699/0105/files/95288459514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7848/3096/files/financial_accounting_question_paper_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/34476831299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1425/7820/files/1075909121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1442/2687/files/bivugoxove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/gejerojopekam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7663/9127/files/dafizurapeseli.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00006226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6226 5596 bytes
SHA-256: c1c24bc58d21de8743c3acb957147e1a24ebb1568ccce15bccf3f20d0ccff7f7
font_01_sfnt_off0000753a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753A 10324 bytes
SHA-256: 0345805e5ac72f9a1575ae830e002a77776e5cee862c44b104cd628b8332a43c
font_02_sfnt_off000098e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E6 16160 bytes
SHA-256: 9ffc405fbed68b1ed35cf25504b2a045b5802e2074cf99e6920a228075e829fc

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