Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9999c1f4d33b771…

MALICIOUS

PDF

46.5 KB Created: 2020-08-15 08:32:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 722c934d15e1de5607a21a187bdabefb SHA-1: 037c8508d374c0fd7a9bb509a4de9ce37c325325 SHA-256: e9999c1f4d33b771ad41c4d456aa927966b806cf3574e894a5c5168cb2b363fc
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, many pointing to external PDF files hosted on various domains, including Shopify. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=o+balma+odia+song++320kbps'. The presence of a link farm and a malicious redirector suggests an attempt to lure users to malicious content or to manipulate search engine results.

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=o+balma+odia+song++320kbps
    • http://files.sandaharrboerboels.com/uploads/1/3/2/6/132681566/6896535.pdf
    • http://files.narayanaresidences.com/uploads/1/3/0/8/130874526/5387283.pdf
    • http://jezata.erasor.org/uploads/1/3/1/3/131383363/muxazif-jisozimefimixu.pdf
    • http://files.councillpsychiatric.com/uploads/1/3/0/7/130739140/kaguxa_babar.pdf
    • http://files.marff.com/uploads/1/3/0/7/130776180/zolumurodon.pdf
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/telivugatepikusa.pdf
    • https://cdn.shopify.com/s/files/1/0437/0599/1322/files/draconomicon_metallic_dragons.pdf
    • https://cdn.shopify.com/s/files/1/0432/1506/1153/files/17711187929.pdf
    • https://cdn.shopify.com/s/files/1/0437/9246/6080/files/84371957732.pdf
    • https://cdn.shopify.com/s/files/1/0431/1187/4716/files/83604705392.pdf
    • https://cdn.shopify.com/s/files/1/0432/3917/8399/files/sinhala_ayurveda_books.pdf
    • https://cdn.shopify.com/s/files/1/0440/3996/2774/files/basic_english_grammar_in_bangla.pdf
    • https://cdn.shopify.com/s/files/1/0428/9282/0643/files/retugodolegulizi.pdf
    • https://cdn.shopify.com/s/files/1/0439/1682/0648/files/dictonary_english_khmer.pdf
    • https://cdn.shopify.com/s/files/1/0440/8147/9832/files/essential_idioms_in_english_advanced.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cd7.bin
997f8bfdda93356ab0df49611aff13dd11415086b6712f30fdf2f3239a9ad537		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD7 5852 bytes
font_01_sfnt_off000070a5.bin
397943a98d2e5f5c26e1afdcd00dd3a52d84fe3ef48d65acae46c25cc1bc5381		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70A5 15120 bytes
font_02_sfnt_off0000a001.bin
e716a47fc1d36aae9ee6bc2f228ab1f8debbd29cc1ec185f3b4806e43ca87b03		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA001 2624 bytes

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