Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d4da02e7903d77f…

MALICIOUS

PDF

46.9 KB Created: 2020-08-07 18:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d8369e9be9ea41939363b2592287b4cc SHA-1: 1e7442c4d73fa25878ac9e0017178ebccac57e77 SHA-256: 6d4da02e7903d77fcdce78a9bcb5d42fdd8428ae2cb9ac9c29a7b60ac9ad03ca
154 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but the primary link redirects to a known malicious domain. This indicates a phishing or scam attempt to trick users into visiting a malicious site. The ML classifier strongly supports the malicious nature of this PDF.

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/pify?keyword=domain+driven+design+pdf+free+download
    • http://jutumox.beannaigh.com/uploads/1/3/1/3/131379965/vamixekosimido_wibezabif.pdf
    • http://files.pierceshearer.com/uploads/1/3/0/9/130969204/xigubavudapabalakin.pdf
    • http://files.bookinitdesigns.com/uploads/1/3/0/8/130874535/todixali.pdf
    • http://files.briocoffeehouse.com/uploads/1/3/1/3/131398367/f7b308d40f9dba2.pdf
    • http://files.kissadult.com/uploads/1/3/1/4/131406841/60283f49042ecd1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/4244/7265/files/12886048967.pdf
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/lexanoxomesaxugu.pdf
    • https://cdn.shopify.com/s/files/1/0427/5198/3772/files/jufeja.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/xifofude.pdf
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/57504391248.pdf
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/95694394576.pdf
    • https://cdn.shopify.com/s/files/1/0432/6935/7728/files/76118837869.pdf
    • https://cdn.shopify.com/s/files/1/0435/4713/2068/files/37014811900.pdf
    • https://cdn.shopify.com/s/files/1/0451/3293/9429/files/envision_math_6th_grade_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0430/2287/6826/files/77640406738.pdf
    • https://cdn.shopify.com/s/files/1/0438/0000/2717/files/bhallataka_compilation.pdf
    • https://cdn.shopify.com/s/files/1/0434/8398/8125/files/the_master_swing_trader_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8074/files/wumixifep.pdf
    • https://cdn.shopify.com/s/files/1/0441/0333/6088/files/after_7_ready_or_not.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_off00007178.bin
df758d2ce3ed06c1c0c75b634e0d23277f1a1d50e3d8c433a5f14240003ae17f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7178 5512 bytes
font_01_sfnt_off00008437.bin
89feca8a97ae7e85c7dad10be07ae55d7fc5783156894615777d6ae20bfbd161		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8437 13148 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.