Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c9212e137135669…

MALICIOUS

PDF

42.9 KB Created: 2020-08-15 03:12:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43acd03c99b83b53e1ed609a8efe7811 SHA-1: 76a07462940a9154e9d24728ea015e57a17a8fc7 SHA-256: 2c9212e137135669a5f435313f6cafb5aeeaad84a8b5136e351cb9d300fc1156
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=free+printable+certificate+of+achievement+template'. This URL is presented within the document body, disguised as a free certificate template, and likely leads to a malicious download or exploit. The presence of numerous other PDF links, many hosted on Shopify but some on suspicious domains, further supports a link farm or redirection strategy. No scripts were extracted from this sample.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free+printable+certificate+of+achievement+template
    • http://susuvu.lachicalocajc.com/uploads/1/3/1/4/131408791/forowi_suxavawe_gebosunebi_sukoviwirur.pdf
    • http://pedawu.bishopgradykofc.org/uploads/1/3/0/7/130738591/dozase.pdf
    • http://getiwi.comfycabinfamily.com/uploads/1/3/1/6/131637136/6c0008c4887a4.pdf
    • http://tezuped.east-pto.com/uploads/1/3/0/7/130738731/6130ca0.pdf
    • https://cdn.shopify.com/s/files/1/0430/1524/1891/files/balochistan_issue.pdf
    • https://cdn.shopify.com/s/files/1/0430/3532/8661/files/40885846873.pdf
    • https://cdn.shopify.com/s/files/1/0438/6082/0133/files/22260349504.pdf
    • https://cdn.shopify.com/s/files/1/0431/9268/0605/files/maruliveretoxoxexodisew.pdf
    • https://cdn.shopify.com/s/files/1/0431/7229/8918/files/gedabuzevexujubido.pdf
    • https://cdn.shopify.com/s/files/1/0431/1705/2066/files/sejivigumuvunoperowi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/catalogo_bisagras_para_soldar.pdf
    • https://cdn.shopify.com/s/files/1/0436/4068/4697/files/lupaxikufozagodixakatado.pdf
    • https://cdn.shopify.com/s/files/1/0430/9362/2935/files/905839183.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_off00006a83.bin
b45d05c9429aa49e0c6389e99e5b67f235abeb8842518ce11f75cd90a5678a2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A83 5232 bytes
font_01_sfnt_off00007c26.bin
c6eae5dc8013f4ce85a0082df98a745317e8480f0444fb338cd6e294207dcedf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C26 10060 bytes

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