Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c320ab7ed72dbb7…

MALICIOUS

PDF

34.8 KB Created: 2020-08-12 07:04:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c188df791b1b803bda1a3a4b35f6de3a SHA-1: b7cd8f6d7f30237ea31b05369f48fb5f4445e8b1 SHA-256: 4c320ab7ed72dbb724e8c927275d298209d42757a7be18edacfdc7943ea52f43
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious due to a high number of embedded links, many of which lead to external PDF files. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=soccer+referee+score+sheet+pdf'. The document body contains garbled text but includes the same malicious redirector URL and several other PDF links, suggesting a lure or redirection mechanism. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=soccer+referee+score+sheet+pdf
    • http://files.lawrencedavidlegal.com/uploads/1/3/0/9/130968993/dofujanizimor.pdf
    • http://zabapejal.bostoneverafter.com/uploads/1/3/1/4/131453540/056e208151d.pdf
    • http://files.mixedattainmentmaths.com/uploads/1/3/1/6/131606121/80928375a7.pdf
    • http://laxusidag.whitestole.com/uploads/1/3/1/4/131406686/fiketupoketuxogoxo.pdf
    • http://files.tellyourstory.today/uploads/1/3/1/4/131452988/1012165.pdf
    • https://cdn.shopify.com/s/files/1/0430/9159/1317/files/8846691979.pdf
    • https://cdn.shopify.com/s/files/1/0434/2651/3048/files/vigupovalamoweluvemoxixa.pdf
    • https://cdn.shopify.com/s/files/1/0432/9901/2766/files/contra_o_arminianismo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7667/3946/files/62328266563.pdf
    • https://cdn.shopify.com/s/files/1/0429/8076/9951/files/pdf_annotator_mac_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/0183/9775/files/33402929818.pdf
    • https://cdn.shopify.com/s/files/1/0437/3017/4101/files/61127882379.pdf
    • https://cdn.shopify.com/s/files/1/0434/3827/6760/files/radiation_biophysics_edward_l_alpen.pdf
    • https://cdn.shopify.com/s/files/1/0439/3969/2699/files/xituz.pdf
    • https://cdn.shopify.com/s/files/1/0437/7808/0925/files/typing_com_bot.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_off000048eb.bin
db00bf7618545fc64307176cc1464a2aa60551db4bb699c1d277e7e262adacae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48EB 5104 bytes
font_01_sfnt_off00005a33.bin
5b0546705d5411a5a31025abeb724a59afa80a81694d1a19e20cb2830994bb7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A33 10236 bytes

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