Malicious PDF — malware analysis report

Static analysis result for SHA-256 62ca7950a77a2a68…

MALICIOUS

PDF

67.7 KB Created: 2020-07-10 06:43:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9108eb4041bbc9d8a10714ac2d7ec44b SHA-1: fc6028eed33a034746e776a436e1b8f14a30aa75 SHA-256: 62ca7950a77a2a680a641f7c2c1d09484368488c0ad234f843042997aca7e343
154 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to known malicious redirector infrastructure, indicating a phishing or malware distribution attempt. The document body, though obfuscated, contains text related to 'becoming a professional life coach free pdf' and includes the malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.cc/wb?keyword=becoming%20a%20professional%20life%20coach%20free%20pdf
    • http://files.fortknoxpaintball.com/uploads/1/3/2/6/132681156/fotitelusuban.pdf
    • http://files.ejkconsultants.com/uploads/1/3/1/4/131453084/5713048.pdf
    • http://files.madebymitchell.com/uploads/1/3/1/4/131437091/5143135.pdf
    • http://files.thinkanomalous.com/uploads/1/3/2/7/132710787/nejugo_fetaxen_vijixer_nujogutoninuj.pdf
    • http://files.shorwellnetball.com/uploads/1/3/0/9/130969242/4934577.pdf
    • http://files.positivepyramidprogramming.com/uploads/1/3/1/8/131871569/c7c7bfef7.pdf
    • http://files.adambenham.com/uploads/1/3/1/4/131454770/bopobuzoma.pdf
    • http://files.scarlett17knits.com/uploads/1/3/1/3/131384583/pejixopora.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://forerojapu946186861.files.wordpress.com/2020/06/36325210079.pdf
    • https://dasiwizuno.files.wordpress.com/2020/07/zojaperale.pdf
    • https://mafegazavete460328079.files.wordpress.com/2020/06/wufizilogep.pdf
    • https://wivutotob.files.wordpress.com/2020/06/21367550212.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4274895189.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40133843423.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vasopamomakazemujavinis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xoxolesusoziviro.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca64.bin
c69a6624dd3e374582e6f57623f149e94306a39644d1435371ccf0787ba3b8f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA64 5328 bytes
font_01_sfnt_off0000dc41.bin
9d99716b3eab411188cb619e00660cc54e697537d5a213f20c4f57455facde87		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC41 10852 bytes

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