Malicious PDF — malware analysis report

Static analysis result for SHA-256 506263ca3285c8c4…

MALICIOUS

PDF

43.6 KB Created: 2020-08-12 01:05:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75ca3bc15e1b1e952e3c250037324cef SHA-1: 09d3797116d1c9f66e7ae934fa6486bc6a1939f7 SHA-256: 506263ca3285c8c4e520c19d4a407667557073b86b6bafc542e655a2020235f0
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector at `ttraff.com`. The document body, though heavily obfuscated, contains text related to a 'weekly menu planner pdf' and the URL `https://ttraff.com/pify?keyword=weekly+menu+planner+pdf`, suggesting a lure to a malicious site disguised as a document. The presence of a link farm further indicates malicious intent.

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=weekly+menu+planner+pdf
    • http://liluse.swirl-studios.com/uploads/1/3/1/3/131380042/065fc97.pdf
    • http://files.chathletics.org/uploads/1/3/0/7/130739892/838be8f9fe2471.pdf
    • http://files.theprestigemaids.com/uploads/1/3/1/3/131384025/wukunilobanorasi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6232/files/momagulober.pdf
    • https://cdn.shopify.com/s/files/1/0434/1327/4780/files/rename_file_linux.pdf
    • https://cdn.shopify.com/s/files/1/0429/8450/5498/files/multivariable_calculus_8th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/86890799380.pdf
    • https://cdn.shopify.com/s/files/1/0444/7030/4935/files/medela_breast_pumps_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0436/2852/7779/files/draconic_evolution_wireless_energy.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/50823242845.pdf
    • https://cdn.shopify.com/s/files/1/0446/6973/0979/files/autobiography_of_helen_keller.pdf
    • https://cdn.shopify.com/s/files/1/0430/1157/1865/files/gadewure.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/house_of_the_rising_sun_ringtone.pdf
    • https://cdn.shopify.com/s/files/1/0432/3010/1668/files/1314829929.pdf
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/54330060354.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/
    • https://cdn.shopify.com/s/files/1/0446/6973/0979/files/autobiography_o

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bc8.bin
3c56f769efe79938618494d4630cd91143228f8128060cc62654cabe105d93ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC8 5188 bytes
font_01_sfnt_off00007d6a.bin
ce5adc508b38ef7b22b14716dfe0cfb7219a5c6ce45cba22cde8ed71e7022002		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6A 10592 bytes

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