Malicious PDF — malware analysis report

Static analysis result for SHA-256 3181128e112c36f4…

MALICIOUS

PDF

46.1 KB Created: 2020-08-19 14:25:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47f4603c49e534d87b44d1508241e3e3 SHA-1: c5989ad828b3da1aa75b58a869ffd68d2d7c8512 SHA-256: 3181128e112c36f41db5bc2782959fe465c5ea77b0f45395c1e9e06c1fbc77ea
120 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link, specifically pointing to a URL that promises a crack for Adobe Audition CS6. This URL is designed to lure users into clicking, likely leading them to malicious content or further compromise. The document body, though heavily obfuscated, also contains the same malicious URL, reinforcing the phishing attempt.

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.ru/pify?keyword=adobe+audition+cs6+free++full+crack
    • http://files.camptongil.org/uploads/1/3/1/6/131606165/jujid-wupugosaz-goninekim.pdf
    • http://files.hertensteinauction.com/uploads/1/3/1/3/131380292/095c95e5a51aa5.pdf
    • http://jatok.ambroseco.com/uploads/1/3/2/8/132815000/setarutelija-binodugalagizet.pdf
    • http://files.pfcmalta.org/uploads/1/3/2/6/132681783/pojepuf.pdf
    • http://files.zentripywithmaggi.com/uploads/1/3/1/3/131379761/namujexub.pdf
    • https://cdn.shopify.com/s/files/1/0429/9672/7961/files/1716090885.pdf
    • https://cdn.shopify.com/s/files/1/0431/6859/6117/files/dasilo.pdf
    • https://cdn.shopify.com/s/files/1/0438/2756/0610/files/arpegios_para_guitarra_electrica.pdf
    • https://cdn.shopify.com/s/files/1/0431/3920/3229/files/17585983239.pdf
    • https://cdn.shopify.com/s/files/1/0437/6068/1111/files/home_depot_canada_tool_rental_price_list.pdf
    • https://cdn.shopify.com/s/files/1/0428/8000/8355/files/30730276723.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3645/files/93234261322.pdf
    • https://cdn.shopify.com/s/files/1/0433/6356/5718/files/43326310748.pdf
    • https://cdn.shopify.com/s/files/1/0434/1068/6113/files/salegupif.pdf
    • https://cdn.shopify.com/s/files/1/0428/2214/0070/files/wupemo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6667/1782/files/42888032041.pdf
    • https://cdn.shopify.com/s/files/1/0428/0965/5462/files/dinosaur_king_video.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_off00006be9.bin
571564f19ec11baa71e339bb9b8a4d957d9747f15c6490bea4ba96062cd499a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE9 5364 bytes
font_01_sfnt_off00007e35.bin
740b917b2d3e0ed9ac9d521bcbc660c3ea0a9b6b9210104564830c8c988ec5d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E35 16168 bytes

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