Malicious PDF — malware analysis report

Static analysis result for SHA-256 55b30410cc9281b8…

MALICIOUS

PDF

54.4 KB Created: 2020-08-25 10:41:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f5eb25eebd08a986c3f897ee40ada8a SHA-1: 10de3f8a6b5d37411cdaec66f4aa434aa4793859 SHA-256: 55b30410cc9281b822e4903db0b3ad1721325e848945e5d2c8624d3edbed8a87
202 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify but point to a redirector at 'ttraff.com'. This redirector is flagged as malicious and is associated with SEO link farms, suggesting a phishing or scam lure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=current+affairs+2018-+19+questions+and+answers', reinforcing the malicious redirector finding. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=current+affairs+2018-+19+questions+and+answers In PDF document text
    • http://files.moldingconfidentme.net/uploads/1/3/2/6/132695478/5638472.pdfIn PDF document text
    • http://zelubub.rochesternyaadom.org/uploads/1/3/1/8/131856427/bilumodike-memajen-xijen-xifuzadagaxib.pdfIn PDF document text
    • http://dadud.dev.moabgear.com/uploads/1/3/1/3/131379578/4667906.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3054/3512/files/43895389129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2128/7080/files/92918228030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/2998/files/mimexurozujoziloradeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0182/1859/files/32673415827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5816/5925/files/61018710720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/79086372433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/kudejubifuvovesezesug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4087/files/word_meaning_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6839/1577/files/naruto_shippuden_english_dubbed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/9844/0605/files/boost_converter_working_principle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/demija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/finance_journal_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4171/7414/files/pdf_to_word_converter_mobile_app_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dobemajafapurotexujebo.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
🗂 Part of campaign: blues-city-kids.com 7 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A9 5700 bytes
SHA-256: 972dba7b0e596cac5ee43582899c8aec1b02929286d25551890601b2dabe955b
font_01_sfnt_off0000842c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842C 10552 bytes
SHA-256: 92d2e4efbfde8f54c7b52704d575ed94e830ac04b0a376a225253c11c048808a
font_02_sfnt_off0000a83c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA83C 16164 bytes
SHA-256: 4bd16c8abd39118228c1571b0005d4eb3b3e943e572fd92a2a80cfcb7b749349
font_03_sfnt_off0000bd51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD51 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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