Malicious PDF — malware analysis report

Static analysis result for SHA-256 383ac34c325e50c3…

MALICIOUS

PDF

42.0 KB Created: 2020-08-22 09:22:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4687ffe1ae6569f007737991593e6100 SHA-1: 3cc763eb1e20ca5f1de51b8870be52fdb0bdfab7 SHA-256: 383ac34c325e50c33988b14f788ae4a9539a1d4ad3b1be02f7b8986bfd1c677d
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=ebay+case+study+analysis+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which resolve to Shopify domains. The document body, though partially corrupted, contains text referencing 'Ebay case study analysis pdf' and the URL 'https://ttraff.cc/pify?keyword=ebay+case+study+analysis+pdf', suggesting a lure to a malicious site disguised as a document.

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.cc/pify?keyword=ebay+case+study+analysis+pdf
    • http://files.daviestreeservicesltd.co.uk/uploads/1/3/2/7/132741110/xijibam-gilonotetemutoz.pdf
    • http://files.spaceschool.ca/uploads/1/3/0/8/130813859/93af91a.pdf
    • http://files.taeyongpark.com/uploads/1/3/0/9/130969012/biwonedutitutilomize.pdf
    • http://files.spiritcode.net/uploads/1/3/0/7/130739022/801265.pdf
    • http://xinafoz.miniphysio.co/uploads/1/3/0/7/130739163/643956486.pdf
    • https://cdn.shopify.com/s/files/1/0431/4460/9943/files/51452186348.pdf
    • https://cdn.shopify.com/s/files/1/0432/3141/2379/files/33088418954.pdf
    • https://cdn.shopify.com/s/files/1/0433/9728/3992/files/lalenoluf.pdf
    • https://cdn.shopify.com/s/files/1/0463/1943/5936/files/cpm_ebooks_cc_algebra_2_answers.pdf
    • https://cdn.shopify.com/s/files/1/0438/9978/1275/files/affidavit_of_loss_sss_id_word_format.pdf
    • https://cdn.shopify.com/s/files/1/0435/6961/0907/files/dusofozasateroriluter.pdf
    • https://cdn.shopify.com/s/files/1/0434/7379/7285/files/fadotimebobesoxoxajodaxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6938/2557/files/my_bedroom_vocabulary_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0436/2433/3472/files/jifumiluberozakotos.pdf
    • https://cdn.shopify.com/s/files/1/0432/4186/5375/files/ignou_b._ed_online_application_form_2020.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_off000066fd.bin
2899477d8c022bc359a2328645b13a6333f1c6cc05a063aa151fe8a57ac05ec5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66FD 5252 bytes
font_01_sfnt_off000078ec.bin
0c678ddcfd23114a7755eba40eeb6fa1a0bf5357d4c123b326abf233ed494d9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78EC 9916 bytes

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