Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4667dccd178c5d8…

MALICIOUS

PDF

34.6 KB Created: 2020-08-28 13:07:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fa9a4a5557707c5db0ac5a05f3da765 SHA-1: 587e9c9334d14629c5e6b0947c0a64af32d458d3 SHA-256: d4667dccd178c5d8b1d90bd7a557941c078b9e42fe3c44bba5a9d1576672a2a9
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm designed to redirect users. The primary redirector URL is https://ttraff.com/pify?keyword=do+or+die+heads+or+tailz. While many other links point to benign Shopify domains, several others are hosted on unknown domains and likely serve as part of the redirection chain. The document body itself is heavily obfuscated but contains the primary redirector URL.

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=do+or+die+heads+or+tailz
    • http://mixipunor.scottishstevennyc.com/uploads/1/3/1/4/131437628/xatipexozipadaje.pdf
    • http://fopoju.flowersfromsarahsgarden.com/uploads/1/3/0/7/130739892/vopemuvofe.pdf
    • http://files.fidgetsltd.com/uploads/1/3/0/8/130874197/7154963.pdf
    • http://files.umcofmacedonia.org/uploads/1/3/1/4/131437017/jawibikarivamu-vixel.pdf
    • http://files.writing.halfsky.org/uploads/1/3/1/4/131407695/c3fefe493ad40.pdf
    • https://cdn.shopify.com/s/files/1/0431/5293/3018/files/vawalajisa.pdf
    • https://cdn.shopify.com/s/files/1/0460/7721/4884/files/denit.pdf
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/guitar_hero_on_pc.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/13223258716.pdf
    • https://cdn.shopify.com/s/files/1/0462/7175/8485/files/12187831827.pdf
    • https://cdn.shopify.com/s/files/1/0434/2143/4023/files/old_play_boy_magazine.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/pokemon_blaze_black_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/3120/6808/files/antisera_preparation.pdf
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/ruwulebudagimibuva.pdf
    • https://cdn.shopify.com/s/files/1/0436/1243/8685/files/9634904056.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_off00004af4.bin
d04a6f8f5f6ae5e437425e722b54ea4ec9ad99ac51e8756900e71f26e53fb3d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF4 4960 bytes
font_01_sfnt_off00005bcf.bin
83d65a7f0ce1f46eb43925bc04a9e81c70abe1fd632f68f71e94239690768f49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BCF 9968 bytes

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