Malicious PDF — malware analysis report

Static analysis result for SHA-256 214affb07fd501f6…

MALICIOUS

PDF

46.7 KB Created: 2020-08-17 02:59:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c5e14752cb57cacae97e9bbd0a72376 SHA-1: c0bc97a250a1f27503b96d17bc1039c805b29f2f SHA-256: 214affb07fd501f65618102d57a8ee38204d948093ae6d58fbb5e6aead7a760c
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The primary malicious URL, 'https://ttraff.cc/pify?keyword=architecture+graduate+cv+template', is designed to lure victims by appearing to offer a CV template. The presence of numerous other PDF links, many hosted on Shopify, suggests a tactic to evade detection or to create a broad SEO-based lure. No scripts were extracted, but the PDF structure and embedded URLs are sufficient to determine the malicious intent.

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=architecture+graduate+cv+template
    • http://files.greendogfarmcsa.com/uploads/1/3/1/1/131164568/4094412.pdf
    • http://fovalusuf.celinedionweloveyou.com/uploads/1/3/0/7/130775432/229646.pdf
    • http://files.greyteakettle.com/uploads/1/3/2/3/132303388/2fa414be6d.pdf
    • http://files.surfsportsforum.com/uploads/1/3/1/3/131381679/1721290.pdf
    • https://cdn.shopify.com/s/files/1/0449/8318/9662/files/simemimatiwazosafapepigo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/jimulamevoxi.pdf
    • https://cdn.shopify.com/s/files/1/0440/7758/0453/files/aankhen_1993_full_movie_300mb.pdf
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/munerukufas.pdf
    • https://cdn.shopify.com/s/files/1/0429/8860/1503/files/sokivo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/libro_aquella_orilla_nuestra.pdf
    • https://cdn.shopify.com/s/files/1/0427/3097/9495/files/zonixukoloxivewilomuwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8120/3861/files/52649847602.pdf
    • https://cdn.shopify.com/s/files/1/0447/3330/0885/files/strategic_thinking_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0432/0123/3053/files/duzesujigajuxowubofejin.pdf
    • https://cdn.shopify.com/s/files/1/0431/6528/6564/files/cyrano_de_bergerac_online.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_off0000799a.bin
a0383c6440ca1b3c12c8943af36aa3d369b1cbb21e2013fe1bccef436f1ffddb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x799A 5360 bytes
font_01_sfnt_off00008bb0.bin
684921be995e2da7cc9a9619efbc37112ea4e33a9392e333e147b5a71577a346		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BB0 10132 bytes

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