Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c786b0fe19a1dc0…

MALICIOUS

PDF

56.2 KB Created: 2020-08-15 01:31:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ca2ae3a72c56aeb15bd7c89974a1f82 SHA-1: a35ee181fde645918368177d34eed90ae8cd4bd9 SHA-256: 0c786b0fe19a1dc0af92adcd9f6ec40cfb3024758a112984dffa5e2a13a17699
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, disguised as a 'Logic Pro X 10 manual pdf'. This indicates a phishing or scam attempt, likely using the document as a lure to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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.ru/wb?keyword=logic%20pro%20x%2010%20manual%20pdf
    • http://files.pinkhamtraveler.com/uploads/1/3/1/6/131637853/3d51083a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0439/8484/7006/files/2020_oscar_awards.pdf
    • https://cdn.shopify.com/s/files/1/0431/0509/1745/files/8210146281.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8333/files/13886943517.pdf
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/vufifoxugisarage.pdf
    • https://cdn.shopify.com/s/files/1/0428/1778/1927/files/6953457092.pdf
    • https://cdn.shopify.com/s/files/1/0427/5198/3772/files/59192882979.pdf
    • https://cdn.shopify.com/s/files/1/0428/0742/7238/files/burupokumo.pdf
    • https://cdn.shopify.com/s/files/1/0438/4774/5698/files/naruto_shippuden_movie_2_english_dubbed.pdf
    • https://cdn.shopify.com/s/files/1/0439/1868/8424/files/2857420286.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/rakonuwavijikawuwegow.pdf
    • https://cdn.shopify.com/s/files/1/0440/5533/0966/files/podadarizov.pdf
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/facts_about_earth.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_off00009dfc.bin
91392bb2e9d2d848a577cfa48c8523da98aa85fe5f602dfae5acdc4b86ece79b
pdf-font-stream PDF embedded font (sfnt) at offset 0x9DFC 5500 bytes
font_01_sfnt_off0000b0a8.bin
3965ce2736dc69de6ce0961ad4a1311c2b13242fa58faee5c12ebc608314c305
pdf-font-stream PDF embedded font (sfnt) at offset 0xB0A8 10524 bytes