Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ba9bd12dcbbfbe1…

MALICIOUS

PDF

37.0 KB Created: 2020-08-01 22:51:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f1774e559a23eaafab5b40c533bc53c SHA-1: 6e5c5093cd7929a10e34de967a1ea124d5299404 SHA-256: 9ba9bd12dcbbfbe1f15e9b4a9006a2169cc652ea62c20c7e40e1112cc7887264
120 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'managerial economics 7th edition keat pdf' and the malicious URL, suggesting a lure to trick users into downloading or accessing malicious content. The heuristic firings confirm the presence of malicious redirector links and a link farm within the PDF.

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=managerial+economics+7th+edition+keat+pdf
    • http://files.panthercreekroad.com/uploads/1/3/0/7/130775049/dba3ca424.pdf
    • http://files.jesus5.com/uploads/1/3/1/4/131438069/2439.pdf
    • http://files.zara-ahmad.com/uploads/1/3/2/6/132681362/7181f5c9.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/masisagitelamoxesoxojibo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/2404937479.pdf
    • https://cdn.shopify.com/s/files/1/0433/0517/3147/files/36881101599.pdf
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/xizesitixabujudewifuzolo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/jejudavitivesusegekur.pdf
    • https://cdn.shopify.com/s/files/1/0432/1984/5278/files/ti_nspire_cx_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/kixogudunagigodokera.pdf
    • https://cdn.shopify.com/s/files/1/0433/9476/0862/files/lakivofex.pdf
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/pogitatozifupegawani.pdf
    • https://cdn.shopify.com/s/files/1/0431/6869/4432/files/16345408739.pdf
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/vanofonedekikog.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/dinirodifawake.pdf
    • https://cdn.shopify.com/s/files/1/0438/2218/6656/files/4620744821.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045fc.bin
5d227effba872324d9540c50bbfbde887476387ff32faef5c6ac5f8a0d7891e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x45FC 5504 bytes
font_01_sfnt_off00005888.bin
fd4b6f20896d497c92f9dac0d830d4261185e74c16a1558e9854566a35fc2315
pdf-font-stream PDF embedded font (sfnt) at offset 0x5888 9396 bytes
font_02_sfnt_off000078bd.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x78BD 4324 bytes