Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb0e454440c2094…

MALICIOUS

PDF

40.7 KB Created: 2020-08-23 10:24:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64a4f8016c1942bf4bbf7affc5bc3fcf SHA-1: ea17ec6c2d8e5df14c2b3815f5dbd04034f4f0f4 SHA-256: ceb0e454440c2094697a829141e643db99b9fd036eec87f8ea91b8a62d68fbc2
120 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Bigo live mod apk unlimited beans' and embeds multiple links. One of these links, 'https://ttraff.ru/pify?keyword=bigo+live+mod+apk+unlimited+beans', is flagged as a malicious redirector. The document also features a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO manipulation or traffic redirection. No scripts were extracted, but the presence of malicious redirector links and the lure indicate a phishing or social engineering 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=bigo+live+mod+apk+unlimited+beans
    • http://zufagiz.katiequerna.com/uploads/1/3/1/4/131453453/bowor.pdf
    • http://zegenu.guidetoamericasparks.com/uploads/1/3/1/3/131398221/c928f1f1d1.pdf
    • http://files.jornalizem.com/uploads/1/3/0/8/130813588/mudukibevijaput-wedozene-vuwomoxom.pdf
    • https://cdn.shopify.com/s/files/1/0435/2881/4741/files/th_tc_cp_c_o_form_d.pdf
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/dujudegabod.pdf
    • https://cdn.shopify.com/s/files/1/0433/5743/8101/files/xugapi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1826/3464/files/8367150962.pdf
    • https://cdn.shopify.com/s/files/1/0431/9081/2821/files/32501958501.pdf
    • https://cdn.shopify.com/s/files/1/0434/6655/5558/files/pelogevanutanelogixulu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9421/1750/files/pezodovewenesix.pdf
    • https://cdn.shopify.com/s/files/1/0434/1425/7815/files/financial_spreadsheet_templates_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/65325431613.pdf
    • https://cdn.shopify.com/s/files/1/0437/6903/6958/files/nice_guidelines_endometriosis.pdf
    • https://cdn.shopify.com/s/files/1/0431/9523/6513/files/rukusamozurodi.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_off0000614f.bin
d87471bf7edc66ac34e543cf071556045287e8f7edb639f88902f3f1ce30e2ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x614F 5496 bytes
font_01_sfnt_off000073f0.bin
b066be0bcc4bdf00200f99c68348da7c834bba4c733d9ef7702e188cc848621c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F0 10024 bytes

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