Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b12979fab2ebaaf…

MALICIOUS

PDF

38.8 KB Created: 2020-08-02 10:03:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 920458d0e4584c473e42acd3e59d4a46 SHA-1: f75b4bfb3ac63d9c83e77891b0babeb8ac62a3c1 SHA-256: 2b12979fab2ebaaf49bf3eea78a18d15a81f8625a1b7a5549fc4163cc22a5003
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a free download for 'Essentials of economics 8th edition pdf'. This link points to ttraff.cc, a known malicious redirector. The document also contains a large number of links to other PDFs hosted on various domains, likely as part of an SEO link farm to improve search engine ranking for malicious content. The presence of these elements indicates a phishing or scam attempt designed to lead users to malicious sites.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=essentials+of+economics+8th+edition+pdf
    • http://files.rsconcerts.org/uploads/1/3/2/7/132710763/5452169.pdf
    • http://files.fourcornersencampment.org/uploads/1/3/2/6/132683330/magetilifakunorureje.pdf
    • http://files.littlecrittersfarm.net/uploads/1/3/0/7/130739570/bawage_jikeroladija_tevirog_rofidu.pdf
    • https://cdn.shopify.com/s/files/1/0439/6823/3630/files/41129371304.pdf
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/6938695771.pdf
    • https://cdn.shopify.com/s/files/1/0431/5679/9647/files/lanuxenurorotodotujoxev.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/20606263091.pdf
    • https://cdn.shopify.com/s/files/1/0432/3416/4893/files/29708698377.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wevola.pdf
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/vosodidepabukoxabovev.pdf
    • https://cdn.shopify.com/s/files/1/0433/8843/6643/files/92171044770.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/gerame.pdf
    • https://cdn.shopify.com/s/files/1/0435/4120/1064/files/ruwejumugivevoweni.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/voveninakozujevalamowud.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/dorutojuvi.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_off00004efd.bin
212df1892ae5e93f09d66a3aeaf728e1bbf3d19fc9d902ff7f5f90f10f9a9589
pdf-font-stream PDF embedded font (sfnt) at offset 0x4EFD 5452 bytes
font_01_sfnt_off0000616b.bin
84e32cbd983d322386f8d6a6943a048add48f03c97d89252855c24d32d447aae
pdf-font-stream PDF embedded font (sfnt) at offset 0x616B 14496 bytes