Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a34deb2a6c6e633…

MALICIOUS

PDF

73.2 KB Created: 2020-08-01 17:10:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0e321420601c1177ab27ae5f6a282566 SHA-1: f32933be6701bfad4d1380001a7695218a273545 SHA-256: 5a34deb2a6c6e633d37459d2c01909f64ae8eb069eaa1696c30e87867b579248
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to the URL https://ttraff.com/pify?keyword=git+on+top. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The presence of numerous PDF links further supports a link farm or phishing campaign. No scripts were extracted, but the overall structure and URL reputation strongly suggest a phishing or malware distribution attempt.

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=git+on+top In PDF document text
    • http://files.tt-lt-support-network.com/uploads/1/3/2/8/132814958/9447910.pdfIn PDF document text
    • http://files.keepeducationpublic.org/uploads/1/3/0/8/130814601/7561461.pdfIn PDF document text
    • http://files.ponyselectbaseball.org/uploads/1/3/2/3/132303170/sesobera_xobiju_nixefuzotezop.pdfIn PDF document text
    • http://files.freeindeedreentry.org/uploads/1/3/2/6/132695306/5824015.pdfIn PDF document text
    • http://files.redhotyogastudios.com/uploads/1/3/1/8/131857723/felofedako.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/1/0440/2518/4421/files/6117198981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8539/7152/files/37690340291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/13842007593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/bates_physical_exam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/nubizumareg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/79972974495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/youtube_popout_player.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/93076305771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5658/5114/files/gebufubik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/18067361526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6523/6895/files/gumufofimusamilesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5014/6723/files/32393693428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3265/7575/files/loxijesimul.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB71 4328 bytes
SHA-256: 19ac67426f8a8ffc8d23adebd42ed7e667cf836b60f43d1b791147a4eea64b0f
font_01_sfnt_off0000ea45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA45 14680 bytes
SHA-256: 15a7e6b1590e464f1a44b0e12d1a36a6ddcfa331fbddbe107e67ee457826abb4