Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c7cbd190a4080c0…

MALICIOUS

PDF

42.5 KB Created: 2020-08-12 06:49:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bd51761bcec50de803bd9fd84ff9b73 SHA-1: 7ae4038ad542ca8435c3ba6bfb6cd253952c68cd SHA-256: 2c7cbd190a4080c0ce95fcb590977c1db26e7e503dc3a1a6d9866346b9f41f9d
128 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic. This suggests the primary goal is to redirect the user to malicious content, likely for phishing or malware delivery.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=total+hip+replacement+procedure+pdf
    • http://files.columbiadentcenter.com/uploads/1/3/0/9/130969910/jubegonakajij-desagomabof-sateno-pikilolot.pdf
    • http://vorufu.lizarudey.com/uploads/1/3/0/9/130969061/kinexemurazew.pdf
    • http://files.mrslynchsclass.com/uploads/1/3/2/6/132695575/xoxofozajuru-kopezimi.pdf
    • http://files.fernandoandradeart.com/uploads/1/3/1/0/131070866/fdaf47796a3e.pdf
    • http://files.ramonabuildsbridges.com/uploads/1/3/2/7/132741429/zoxulepude.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/lejoruzokeki.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/14986450294.pdf
    • https://cdn.shopify.com/s/files/1/0437/8545/3730/files/93210636696.pdf
    • https://cdn.shopify.com/s/files/1/0435/8068/6491/files/quimica_peter_atkins.pdf
    • https://cdn.shopify.com/s/files/1/0433/2073/7950/files/mazenavir.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/87563027028.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50398535586.pdf
    • https://cdn.shopify.com/s/files/1/0444/0568/6438/files/ganesha_atharvashirsha_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/86860986330.pdf
    • https://cdn.shopify.com/s/files/1/0428/7053/8406/files/xusek.pdf
    • https://cdn.shopify.com/s/files/1/0428/9999/6839/files/2092975207.pdf
    • https://cdn.shopify.com/s/files/1/0432/2079/5556/files/24593384966.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/lodusabivafanexufuzumolu.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_off000068e3.bin
176406e5fbf4db1a04976271a488a1b237851c81f562f2614fcba9df2a33d8a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x68E3 5164 bytes
font_01_sfnt_off00007a4b.bin
e5a482dd9491a22a1f17d68b4e696a1e2a120eaf327b0d3f6fc3059f48ab9cdd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4B 10112 bytes