Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f2e7bfa7b3ea0e…

MALICIOUS

PDF

44.4 KB Created: 2020-08-07 09:39:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f66c129e2a3d9574983f716e129fd066 SHA-1: 474050721cebc5d97b541c0c29d381839fe7d466 SHA-256: 62f2e7bfa7b3ea0ea77cf2f0bd3e5f8566f4dd2d44da89fc14a8dc33983bfd03
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body and embedded links suggest a lure related to 'data analysis and interpretation in research methodology pdf', likely intended to trick users into downloading further malicious content or visiting phishing sites. The ML classifier strongly indicated maliciousness.

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=data+analysis+and+interpretation+in+research+methodology+pdf
    • http://pawulol.boshuster.com/uploads/1/3/1/3/131383791/vifexami-darozavapupajup-nuvowot-domutu.pdf
    • http://files.soulelectricliving.com/uploads/1/3/2/6/132695633/lavosuwoxevokafo.pdf
    • http://files.ruthmaryjohnson.com/uploads/1/3/1/6/131606291/sezevujatida.pdf
    • http://files.torilinvillehopper.com/uploads/1/3/1/3/131379718/vakata.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/6163/1384/files/blender_3d_2._8.pdf
    • https://cdn.shopify.com/s/files/1/0430/4053/8773/files/bawuf.pdf
    • https://cdn.shopify.com/s/files/1/0444/4015/8374/files/calligraphy_books_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8760/1559/files/nomiloxulofexonegowop.pdf
    • https://cdn.shopify.com/s/files/1/0428/7148/8668/files/33694429568.pdf
    • https://cdn.shopify.com/s/files/1/0432/1037/5325/files/zizanukod.pdf
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/vodirof.pdf
    • https://cdn.shopify.com/s/files/1/0436/4324/0606/files/jaxobizur.pdf
    • https://cdn.shopify.com/s/files/1/0430/7465/0261/files/xaxeta.pdf
    • https://cdn.shopify.com/s/files/1/0433/0124/0985/files/artificial_intelligence_tutorial_for_beginners.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_off00006d9e.bin
c6b74cc126a48bf3a7850d8b2f5b92fa726633ec125f306f0b2ed091ee599c1b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9E 5672 bytes
font_01_sfnt_off000080d0.bin
3fb909e4d869a83fc89f69d6855b1ed4066bc73273ed964ec7527bfa2fe98565
pdf-font-stream PDF embedded font (sfnt) at offset 0x80D0 10340 bytes