Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded927a72d172963…

MALICIOUS

PDF

38.7 KB Created: 2020-08-03 11:38:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56951c455af2ac604c3c0c270efc3c16 SHA-1: d95a984bcb8357f34ace1ef28b295dc5ca09bb57 SHA-256: ded927a72d1729633f5d504212f9b145c8ff0f68cfec5917d5cef262343002cd
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One critical heuristic identified a redirector link to 'ttraff.cc' which is known malicious infrastructure. The document body, though heavily obfuscated, contains text related to a cookbook and the malicious URL, suggesting a lure to download potentially malicious content. The primary attack pattern involves tricking users into clicking a malicious link disguised as a legitimate download.

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=binging+with+babish+cookbook+pdf+free
    • http://files.sailabilitybatemansbay.com/uploads/1/3/2/6/132695698/fe0312d0aa8.pdf
    • http://files.bigyogaonline.com/uploads/1/3/1/3/131384635/wivefisodesamuk_tomonejug.pdf
    • http://files.llabands.com/uploads/1/3/0/7/130738917/5855859.pdf
    • http://files.cfoondemandcr.com/uploads/1/3/0/8/130814078/804d098f14e6da.pdf
    • http://files.jeffersonchoralsociety.org/uploads/1/3/0/9/130969663/fixabijerigega.pdf
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/32965695856.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gomejalubewetilukifij.pdf
    • https://cdn.shopify.com/s/files/1/0430/1937/0659/files/98832824766.pdf
    • https://cdn.shopify.com/s/files/1/0429/3584/5017/files/4601679763.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/68821359807.pdf
    • https://cdn.shopify.com/s/files/1/0433/7441/1926/files/vakit.pdf
    • https://cdn.shopify.com/s/files/1/0430/8199/0304/files/sulimifojivegabos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/fuzaximugogilamelewurakab.pdf
    • https://cdn.shopify.com/s/files/1/0439/4939/2030/files/47363198733.pdf
    • https://cdn.shopify.com/s/files/1/0429/5720/9753/files/29553311094.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_off0000569c.bin
a4ecd117b304819efa27cf5d3f0050e9fdfa35be46db378b70dbbabb0396558f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x569C 5732 bytes
font_01_sfnt_off00006a28.bin
011c1a592fcd470ce82c96ecd5911824de293e90abfeed05e7e0a6630b9fc5ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A28 10468 bytes

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