Malicious PDF — malware analysis report

Static analysis result for SHA-256 319d53ba37038660…

MALICIOUS

PDF

44.7 KB Created: 2020-08-10 23:28:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62341654ed1a74e5de44d7b79d42e3f3 SHA-1: d9e02835b8c547f2ab23b239715c767bf99aaf22 SHA-256: 319d53ba37038660b242dc70a449e605b336d337ace92626b41f46a1b35a1923
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=approaches+of+community+development+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure to a potentially harmful site.

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=approaches+of+community+development+pdf
    • http://files.gogreenparkridge.org/uploads/1/3/0/8/130814861/9c52553.pdf
    • http://juvuforir.mrscothran.com/uploads/1/3/2/8/132815002/218db3.pdf
    • http://files.richardlewis.co.za/uploads/1/3/0/8/130813461/b22c5b4cfd4.pdf
    • http://files.jasminechaneats.com/uploads/1/3/1/4/131453251/luwikavosikoba.pdf
    • https://cdn.shopify.co
    • https://cdn.shopify.com/s/files/1/0430/1219/4463/files/getujetuvazatabesez.pdf
    • https://cdn.shopify.com/s/files/1/0440/3966/7877/files/felok.pdf
    • https://cdn.shopify.com/s/files/1/0432/0667/2546/files/jubinexanadotux.pdf
    • https://cdn.shopify.com/s/files/1/0432/1912/4382/files/29200407108.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5562/files/xizigawanekijunidetufu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/27256731328.pdf
    • https://cdn.shopify.com/s/files/1/0443/5968/0156/files/digestion_y_absorcion_de_proteinas_en_monogastricos.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/25171403372.pdf
    • https://cdn.shopify.com/s/files/1/0437/3587/5745/files/fuzujolo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6269/files/28647309241.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/79056374723.pdf
    • https://cdn.shopify.com/s/files/1/0435/3441/8072/files/29644254994.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_off0000702a.bin
5794a9a0eb28c186d3153ddeef34735a4c9e2fa71f867aaef20924182ee0a0d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x702A 5548 bytes
font_01_sfnt_off000082ea.bin
d9c16db5cdad7c9b049fb8e283ab7463ba30070e1d72eefcf72713fc15af8c36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82EA 10088 bytes

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