Malicious PDF — malware analysis report

Static analysis result for SHA-256 5af69f46d00bab57…

MALICIOUS

PDF

35.6 KB Created: 2020-08-20 10:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 07cc0d7a4cfb0684c7b5d7de0172b2bf SHA-1: 8855e5b1ab06a393987c96e31baf3e96c0fbbe02 SHA-256: 5af69f46d00bab57eb4a78531bc0fd661ed103647dcff9e6e37d5d124c1e1d49
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with one critical heuristic identifying it as a malicious redirector. The primary malicious URL, 'https://ttraff.cc/pify?keyword=naruto+x+boruto+project+trial', is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains this URL and other benign-looking Shopify links, suggesting a lure for users to click through.

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=naruto+x+boruto+project+trial
    • http://sujebe.lansdownewritersworkshop.com/uploads/1/3/1/4/131408229/gasonisusi.pdf
    • http://files.alwaysamigosyoga.com/uploads/1/3/1/3/131383727/wawemurererimot-tilelu-gopaka-pilexadu.pdf
    • http://files.camdenauctions.com/uploads/1/3/0/7/130775732/fopeveruw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/kingsway_music_library_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/32949338226.pdf
    • https://cdn.shopify.com/s/files/1/0436/2171/2034/files/moto_g5_plus_boost_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0431/5699/6260/files/82051139766.pdf
    • https://cdn.shopify.com/s/files/1/0434/5020/4316/files/33365763550.pdf
    • https://cdn.shopify.com/s/files/1/0433/9721/8471/files/norma_035_riesgos_psicosociales.pdf
    • https://cdn.shopify.com/s/files/1/0435/7318/2625/files/anarchism_and_moral_philosophy.pdf
    • https://cdn.shopify.com/s/files/1/0432/5172/8546/files/luxizi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuvekalododit.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_off00004b2f.bin
645ebab61d5bd77eeb6570ff04a796df6ee8e62f43f448b9bfa70c146d05185e
pdf-font-stream PDF embedded font (sfnt) at offset 0x4B2F 5004 bytes
font_01_sfnt_off00005c4e.bin
3bd6259a88dbec3cb086b7b012728eb521453e3dc4211151304e0f1d3caafe5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4E 10596 bytes