Malicious PDF — malware analysis report

Static analysis result for SHA-256 704882f60184d09c…

MALICIOUS

PDF

46.1 KB Created: 2020-08-15 01:46:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53aa8f2b4607f3a63727f062110a8062 SHA-1: ed2eb8c7eba8529ce476fd5ddd8f9de9d5aa8e26 SHA-256: 704882f60184d09c0b022815f3c7aabc4cec5cb01c9f32f03e3dbc96da771227
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as meditation content. The document also hosts a large number of links to other PDFs, likely for SEO manipulation or to obscure the malicious link. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or redirection attempt.

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.com/pify?keyword=meditation+music+guided+imagery
    • http://files.archipelagourbanfarm.com/uploads/1/3/0/8/130874207/gebojomifibof.pdf
    • http://soxujip.kellycurtisphoto.com/uploads/1/3/1/3/131378960/4982313.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/ableton_live_9_lite_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/84979559976.pdf
    • https://cdn.shopify.com/s/files/1/0438/8909/8907/files/pabil.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/73112587736.pdf
    • https://cdn.shopify.com/s/files/1/0432/9881/6150/files/73434778121.pdf
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/23060356539.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/aeolian_erosion.pdf
    • https://cdn.shopify.com/s/files/1/0435/4103/7208/files/blueprint_book_nicholas_christakis.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/bumudezugekawaxow.pdf
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/annotates_app.pdf
    • https://cdn.shopify.com/s/files/1/0440/6145/8597/files/fekovixevaxenaxaxa.pdf
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/vapifu.pdf
    • https://cdn.shopify.com/s/files/1/0438/5266/0901/files/ll_cool_j_headsprung.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_off0000775a.bin
386534d0068d1cc0c5d35a2d8c62eb205bad13d28a204b6d9046b3cc4dc808be
pdf-font-stream PDF embedded font (sfnt) at offset 0x775A 5336 bytes
font_01_sfnt_off00008971.bin
5cfdbc8069340fe3c6ffe55d2a7932e61c563deb8276c951892cf5ee66811359
pdf-font-stream PDF embedded font (sfnt) at offset 0x8971 9936 bytes