Malicious PDF — malware analysis report

Static analysis result for SHA-256 89deb1b807e9012b…

MALICIOUS

PDF

44.1 KB Created: 2020-08-10 20:39:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40bfa3c7ea06ce8e1e52226872d973dc SHA-1: 16b4c59fe129d3db0ab8050624a2f7a357f69bcf SHA-256: 89deb1b807e9012ba57dcc25ef7d0f018a6ddd502cdbf2610a3d949a9b45bad5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains the same URL found in the heuristic. This suggests the PDF is designed to lure the user into clicking the malicious link, likely leading to a phishing page or a malware download. No scripts were extracted, and the PDF structure itself does not indicate further malicious activity beyond the redirect.

Heuristics 3

  • 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.
  • 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=between+a+rock+and+a+hard+place+extract+pdf
    • http://files.almansweide.nl/uploads/1/3/1/4/131453465/be99d4bcdca6382.pdf
    • http://wixojur.whatsmybox.com/uploads/1/3/2/6/132681352/2299f78.pdf
    • http://gudanaxo.dubcobball.com/uploads/1/3/1/0/131071164/3419869.pdf
    • http://files.europeanbusinessservices.com/uploads/1/3/1/1/131163540/zoranebezi_xasivosajupi_wogiwafasu_lanep.pdf
    • https://cdn.shopify.com/s/files/1/0435/3120/6808/files/29436367251.pdf
    • https://cdn.shopify.com/s/files/1/0437/0939/9192/files/mutemath_spotlight_twilight_mix.pdf
    • https://cdn.shopify.com/s/files/1/0437/7837/5831/files/85937437527.pdf
    • https://cdn.shopify.com/s/files/1/0433/3027/3448/files/52036711192.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/bedutizanerozasire.pdf
    • https://cdn.shopify.com/s/files/1/0432/2312/2084/files/juzobimetu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2651/3048/files/31575481387.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5570/files/spanish_to_english_phrases.pdf
    • https://cdn.shopify.com/s/files/1/0431/2173/7882/files/sodelademovikedus.pdf
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/doxazelibitoxi.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e5b.bin
340b919c16bef9ae17b4990886a5846f5b53d01568810fa98f91cea37687f6a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5B 5336 bytes
font_01_sfnt_off00008094.bin
c52a207565be201c92835c650cba61c22f51b82ca4c5135ce04056de8ecdfd09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8094 10260 bytes

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