Malicious PDF — malware analysis report

Static analysis result for SHA-256 901d824577e36064…

MALICIOUS

PDF

40.6 KB Created: 2020-08-16 17:54:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e9a8af9d3c43117d8fafa4a1fe3ba59 SHA-1: 3da6bcd15bca468aec73acdd4fc9dec09a7bf179 SHA-256: 901d824577e36064140aefd1d9bb56a2860f4be44840565d9b892090b31dcb27
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 the same URL, suggesting a lure to download or view content. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, many of which are benign but serve to obscure the malicious destination. The primary malicious URL is https://ttraff.com/pify?keyword=illustrator+cc+2015+test+3+answers.

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=illustrator+cc+2015+test+3+answers
    • http://xujazew.golfdrivingrangewiltshire.co.uk/uploads/1/3/0/7/130775403/b88901a38eec9d1.pdf
    • https://cdn.shopify.com/s/files/1/0450/9443/7029/files/sanitizantes_en_la_industria_alimentaria.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamefidijuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/4939/4071/files/24275397973.pdf
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/manual_icloud_backup.pdf
    • https://cdn.shopify.com/s/files/1/0432/2574/3521/files/armageddon_brand_leveling_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/7061/1861/files/dezexomirubibisut.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/bolefugoxasijajiteni.pdf
    • https://cdn.shopify.com/s/files/1/0440/4595/9333/files/always_remember_us_this_way_piano_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/vowiluralopibixod.pdf
    • https://cdn.shopify.com/s/files/1/0434/6671/9385/files/kojosivivokulojibiwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/rikudataxow.pdf
    • https://cdn.shopify.com/s/files/1/0436/3013/3406/files/24962208616.pdf
    • https://cdn.shopify.com/s/files/1/0433/5098/2805/files/97193478314.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_off00005f32.bin
47a8d292dbe0b50e5909046274a0ef337587cc935791b9a651395681a602b9a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F32 5436 bytes
font_01_sfnt_off000071c7.bin
a7186777ce3bf69775646e3c48a74c5423cbb2e922e41936e83fe5d821dfee46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71C7 10532 bytes

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