Malicious PDF — malware analysis report

Static analysis result for SHA-256 c626f668b8c43391…

MALICIOUS

PDF

49.3 KB Created: 2020-08-02 12:55:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 745771ac25a11adbb98527c39e9aeeb6 SHA-1: aaea37a63e156678fbb9caf6ea6477e726a81342 SHA-256: c626f668b8c43391d9c553f04b25791183f7f808b09fb3be2984cfdb21b6fed5
120 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=docker+image+has+dependent+child+images'. This URL is likely used to redirect the user to a malicious site. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains hosting other PDFs. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or execution mechanisms.

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=docker+image+has+dependent+child+images In PDF document text
    • http://files.chickencooptheatre.com/uploads/1/3/1/6/131606289/sekakifutak.pdfIn PDF document text
    • http://files.busterscinematicuniverse.com/uploads/1/3/1/3/131383575/bb313d.pdfIn PDF document text
    • http://files.raeleensfancyfaces.com.au/uploads/1/3/0/7/130775009/vafotapibew-pejewukutibatuv-ribozorix-femumiju.pdfIn PDF document text
    • http://files.faithforher.com/uploads/1/3/2/7/132712080/pitagilopunovik-tajimafarujife-jewafozulajep-sasusilaxigu.pdfIn PDF document text
    • http://mijojupu.jasbinderbilan.co.uk/uploads/1/3/1/0/131071157/0cff627a6d8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9101/8396/files/47433728441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/kibavevisulebifomapejode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5274/files/tuwojuwiseva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4742/6965/files/jetesulupetoxuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/kawam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/47406397492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/fexetevomudolimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3185/4247/files/10163937508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4060/4314/files/49404201776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93236297381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1050/6404/files/48654415331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/sekubunowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3831/9527/files/vijanolitoku.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073fd.bin
72001f675d5e55bbd7879f7c00aef0ac5439dc678c7d66dba57b13396c530c64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73FD 5548 bytes
font_01_sfnt_off000086b2.bin
ac0e475d6d857ce354bfafbe469cd08ee7311394020f6c3344e6ba8e63ec1412		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86B2 15596 bytes

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