Malicious PDF — malware analysis report

Static analysis result for SHA-256 982d901cd4c0dc02…

MALICIOUS

PDF

45.3 KB Created: 2020-08-02 10:32:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51068b5d9f5f5574fc92531953b1a0cd SHA-1: cd8fee947438618658604700b7979a377f4c7574 SHA-256: 982d901cd4c0dc02b841f998da57acc72a1cec9330d1f5abe2b89c41465024da
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=craftsman+109+lathe+manual+pdf'. The document body, though heavily obfuscated, contains this URL and appears to be part of an SEO poisoning attempt to lure users with search terms like 'craftsman 109 lathe manual pdf'. The file is generated by wkhtmltopdf, suggesting it was programmatically created.

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=craftsman+109+lathe+manual+pdf
    • http://files.phoenixlighthouse.net/uploads/1/3/1/4/131452958/tiwupunemun_turotadotukuzo_pupasenodavuj.pdf
    • http://files.eatdelirium.com/uploads/1/3/0/8/130874369/gigag.pdf
    • http://files.thelischka.com/uploads/1/3/1/3/131380181/xexoxawuxuxagejax.pdf
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/muzomotomuja.pdf
    • https://cdn.shopify.com/s/files/1/0439/1947/4856/files/4092490891.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/tixogigetaxufubef.pdf
    • https://cdn.shopify.com/s/files/1/0430/8526/7097/files/7750427802.pdf
    • https://cdn.shopify.com/s/files/1/0438/1753/3597/files/73656266794.pdf
    • https://cdn.shopify.com/s/files/1/0430/5027/0869/files/rekene.pdf
    • https://cdn.shopify.com/s/files/1/0436/5674/1022/files/ariens_compact_24_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/pakazepepune.pdf
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/denso_navigation_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/sonizutipeworaxumimuwuze.pdf
    • https://cdn.shopify.com/s/files/1/0428/6647/5174/files/46706015891.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_off00006661.bin
88c1d1896e9703b0d0c79433d0e5357c8ce912f462dc3eeafb922fdb028cce52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6661 5376 bytes
font_01_sfnt_off00007873.bin
01415a133a054fd9433b373b2a4f0bf31d0f5bc788ee2850370f658b5929cdc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7873 9900 bytes
font_02_sfnt_off00009a4b.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A4B 4324 bytes

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