Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29e7e3263987f54…

MALICIOUS

PDF

41.6 KB Created: 2020-08-06 03:05:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5665a22a41eb3f41fb4db99ad748558c SHA-1: 2ab48c0746f5cee425f07eaf8a272683ed81968d SHA-256: e29e7e3263987f54635ef92ff5c0ff96c778121a4c39ed353aea42871e70f89e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains a reference to the same URL, suggesting it's the primary lure. The PDF also contains a link farm heuristic, indicating a broader SEO poisoning attempt. The primary malicious IOC is the redirector URL, which likely leads to further stages of the attack.

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/wb?keyword=lonely%20planet%20taiwan%20pdf%20free%20download
    • http://files.guamcocoscrossing.com/uploads/1/3/1/4/131483267/6c7e64864f906.pdf
    • http://kudofo.timelineethiopia.com/uploads/1/3/1/6/131606060/sugodoxitapuj.pdf
    • http://files.solosprinter.com/uploads/1/3/2/6/132681144/8159264.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/31758538409.pdf
    • https://cdn.shopify.com/s/files/1/0433/2532/5467/files/spring_boot_documentation.pdf
    • https://cdn.shopify.com/s/files/1/0430/3241/2311/files/96806939317.pdf
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/electronic_ignition_system_using_contact_breaker.pdf
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/494005402.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/66450386648.pdf
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/noferenuzi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8941/8657/files/rojijefazavuxawusukilez.pdf
    • https://cdn.shopify.com/s/files/1/0431/3464/8474/files/watch_digemon_online.pdf
    • https://cdn.shopify.com/s/files/1/0434/0688/5027/files/davipufofis.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_off00006455.bin
56dfd7696201f913a3aebe2fbc9c0e49f5b29a8e5479af833e685e27b9f68793		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6455 4992 bytes
font_01_sfnt_off00007582.bin
4dd5530834a84f320ced307a058c2206ab5c9e09450dd8598cd6730abae80707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7582 10580 bytes

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