Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc9a03839846a708…

MALICIOUS

PDF

37.5 KB Created: 2020-08-19 05:32:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 961ec76a1d5b9315f5a6cdc6d6a1c8b8 SHA-1: 9712904fbe0e4276dfd89c0e7d456c6b92a25cb0 SHA-256: fc9a03839846a7081c7ce8326e788b11e05c70a2ea904d2ad982f2a2a3f5fe1b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.com/pify?keyword=anjumalai+alaga+ayyappan+songs+free, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and appears to be a lure to generate traffic to malicious infrastructure.

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=anjumalai+alaga+ayyappan+songs+free In PDF document text
    • http://files.lilyandlous.com/uploads/1/3/1/4/131483378/7656419.pdfIn PDF document text
    • http://files.amystreasuresdesign.com/uploads/1/3/1/4/131453823/bofobomoti-xixoximaz-tubigokulepami-womobotebujaxek.pdfIn PDF document text
    • http://files.thedepontes.com/uploads/1/3/1/6/131637640/rasusafofaxix-fezokiwufanenib-jisin-sedosel.pdfIn PDF document text
    • http://files.coonrapidscommunitystrengthfoundation.com/uploads/1/3/0/7/130776503/zamarulusabexosuk.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/1/0429/1634/8057/files/php_download_file_from_url.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0306/0128/files/understanding_financial_statements_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/221014381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6635/2025/files/46601860647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8171/8167/files/vemofididakivovevobunuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1865/files/arabic_to_english_translation_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3697/8850/files/trastorno_alimenticio_en_la_adolescencia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3812/1895/files/sosagawarimipimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/saduno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0115/9575/files/interval_notation_practice_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7217/6796/files/xiwogajuxopipoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/wivorufufozujulawer.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47B7 5192 bytes
SHA-256: b449eac845f517effe16b618462d4e9666b8feb99f95ac235b2b5c66c0b9817e
font_01_sfnt_off00005945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5945 9900 bytes
SHA-256: 26df36f4aac261f458e25cd9b00d469ab2953d4814c634284a1350cbf01b733f
font_02_sfnt_off00007aff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFF 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176