Malicious PDF — malware analysis report

Static analysis result for SHA-256 96eb19de9f423bc8…

MALICIOUS

PDF

71.9 KB Created: 2020-08-02 01:22:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f6286dca7a42fe7b8d8dd5fa1ee8e4a SHA-1: 2787428bccc142cb80001896e946c8e5a1b9026b SHA-256: 96eb19de9f423bc8b99d29fd34fcd293f00aacff8f66d67ed80d54c479170eb0
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to its structure, which includes a large number of external links, a technique often used for SEO link farms. One of these links, 'https://ttraff.com/pify?keyword=half+elf+half+tiefling', is known to point to malicious redirector infrastructure. The document body contains garbled text and a URL, suggesting it's a lure document designed to redirect users to malicious sites.

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=half+elf+half+tiefling
    • http://files.msmaco.com/uploads/1/3/1/0/131070330/2f43fd.pdf
    • http://files.austinpianoschool.com/uploads/1/3/2/3/132302732/747092.pdf
    • http://files.newhopetherapyhs.com/uploads/1/3/1/4/131437283/donig.pdf
    • https://cdn.shopify.com/s/files/1/0433/2437/5194/files/zawemaxoxu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/14030825880.pdf
    • https://cdn.shopify.com/s/files/1/0432/5392/4004/files/tuvafa.pdf
    • https://cdn.shopify.com/s/files/1/0434/0655/7341/files/30055327768.pdf
    • https://cdn.shopify.com/s/files/1/0433/8365/2506/files/17422732467.pdf
    • https://cdn.shopify.com/s/files/1/0432/7001/3086/files/97210272266.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/jawoxorozinixunixetabevu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/wigob.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/26213681137.pdf
    • https://cdn.shopify.com/s/files/1/0431/3320/6690/files/1599929874.pdf
    • https://cdn.shopify.com/s/files/1/0427/4506/9724/files/2707472158.pdf
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/1409375558.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/salem_tractor_parts.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0954/files/bitog.pdf
    • https://cdn.shopify.com/s/files/1/0432/3701/5719/files/70601420892.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_off0000dd9f.bin
052c825c92178021f8c26a8d13c2568cd4b92d346c08b263c0430fc160a0b2cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9F 4716 bytes
font_01_sfnt_off0000edae.bin
bb0b9a4e22436601e91f457b38d1efc6525920115c6d886c01d028de2803865b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDAE 10764 bytes

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