Malicious PDF — malware analysis report

Static analysis result for SHA-256 080e61522fa14ad3…

MALICIOUS

PDF

36.3 KB Created: 2020-08-20 05:10:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 250bc3a6d7879561296813c2602e28fb SHA-1: cf8b81f713cdcc0d559509764e121b1c7d14b714 SHA-256: 080e61522fa14ad34071140fef3e25dd2cfdce0ce70287df62a27e4cab4d7a48
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including a primary redirector URL, suggesting a link farm or phishing campaign. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to malicious redirection. The document body contains the primary malicious URL, which is likely intended to lead the user to a malicious site.

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/pify?keyword=anjali+anjali+pushpanjali+song+bgm
    • http://gezetu.syrcemusic.com/uploads/1/3/1/4/131405977/pujuxenapegug.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/75057516948.pdf
    • https://cdn.shopify.com/s/files/1/0432/1984/5278/files/two_steps_from_hell_battlecry.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wojilezufaguxulidumusad.pdf
    • https://cdn.shopify.com/s/files/1/0446/0986/3843/files/binh_php_tn_t_dnh_cho_phi_p.pdf
    • https://cdn.shopify.com/s/files/1/0430/4742/0066/files/tibero.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/volvo_xc_90_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/0757/4179/files/13003661456.pdf
    • https://cdn.shopify.com/s/files/1/0438/1786/1277/files/99015469354.pdf
    • https://cdn.shopify.com/s/files/1/0430/7438/8119/files/73262559263.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1030/files/tipixurekij.pdf
    • https://cdn.shopify.com/s/files/1/0438/6439/1845/files/piwesatataror.pdf
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/6198472073.pdf
    • https://cdn.shopify.com/s/files/1/0435/2878/1973/files/80294020204.pdf
    • https://cdn.shopify.com/s/files/1/0431/8140/8416/files/business_environment_concept_significance_and_factors.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_off00004cc2.bin
8a884d5f989ae4bf4e1a04fa4dd9fa9ef5847330580c64c22cb09bbdfe957016
pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC2 5340 bytes
font_01_sfnt_off00005ec7.bin
09114ec60714ea1ada649721b8e87bf55dcaf65a9bbc9fdfbdf44dddb0ede31b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC7 11224 bytes