Malicious PDF — malware analysis report

Static analysis result for SHA-256 dde01dbfb8e53d14…

MALICIOUS

PDF

62.7 KB Created: 2020-08-08 07:47:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9bb4d032f9def454c397e21a8911bd2 SHA-1: f83ed409d209773c439a0a383b8275f89ca740f4 SHA-256: dde01dbfb8e53d1499b1e4b1d3023481f9f06607f995b79a927322fc0ebf39d5
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure at 'ttraff.cc'. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=albert+camus+l+etranger+pdf
    • http://files.shopbananababy.com/uploads/1/3/1/4/131453725/vodefogidabizo-mizexoraji-pajug-punijetuwowonat.pdf
    • http://lazuk.enjoybritish-hills.com/uploads/1/3/0/7/130775997/0ffe54d7c77.pdf
    • http://files.dhketterling.com/uploads/1/3/2/7/132740804/baruzilugira.pdf
    • http://nilamu.luvsheascloset.com/uploads/1/3/0/7/130740025/nubipenukatare-firovaso-lavukos.pdf
    • http://wenimaw.flynnriordan.com/uploads/1/3/0/8/130873826/3503052.pdf
    • https://cdn.shopify.com/s/files/1/0430/1661/8145/files/66322205677.pdf
    • https://cdn.shopify.com/s/files/1/0434/1648/6040/files/32756481239.pdf
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/majefuxewov.pdf
    • https://cdn.shopify.com/s/files/1/0432/2240/1185/files/vajafoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/9500/7137/files/46495155109.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/acc_aha_guidelines_valvular_heart_disease.pdf
    • https://cdn.shopify.com/s/files/1/0435/6725/1617/files/jazz_guitar_scales_and_arpeggios.pdf
    • https://cdn.shopify.com/s/files/1/0428/9062/5191/files/55734958164.pdf
    • https://cdn.shopify.com/s/files/1/0435/4280/6680/files/3109488058.pdf
    • https://cdn.shopify.com/s/files/1/0428/6598/3655/files/46801972174.pdf
    • https://cdn.shopify.com/s/files/1/0431/1321/8199/files/37867767526.pdf
    • https://cdn.shopify.com/s/files/1/0435/9425/2456/files/metode_aashto_1993_pdf.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000937e.bin
3e47ada2c88891d2ac261fe587056cf001cb2872fcd528197da7a72e2fc6d986		 pdf-font-stream PDF embedded font (sfnt) at offset 0x937E 5328 bytes
font_01_sfnt_off0000a579.bin
09cff1a68c241a45c48b847c2d0c9de3c0b91b0264a3eeb778107f1215dcf3e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA579 10704 bytes
font_02_sfnt_off0000c9ce.bin
c0596f52601de44763ccff7fba9c7f7707c211278fb6ffcfae4a7892f822440f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9CE 16100 bytes
font_03_sfnt_off0000dea5.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA5 4324 bytes

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