Malicious PDF — malware analysis report

Static analysis result for SHA-256 53ee3968493e2aef…

MALICIOUS

PDF

47.9 KB Created: 2020-08-20 14:27:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba868536cc2c7bb0b1a61a7be633543f SHA-1: f09f16d382a2f6eeb0326a57792eb8c2c48ca1e2 SHA-256: 53ee3968493e2aef98e146794a8f7f2de4f42ff3e14aac22d23e54a175281b56
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, flagged as a 'PDF_SEO_LINK_FARM'. One of these links, 'https://ttraff.cc/pify?keyword=colliers+singapore+market+report', is identified as a malicious redirector. The presence of a link farm and a malicious redirector suggests an attempt to manipulate search results or lead users to malicious content, likely as part of a phishing or SEO poisoning campaign.

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=colliers+singapore+market+report
    • http://xobef.writtenfromwithin.com/uploads/1/3/2/6/132695550/1e23661300e4.pdf
    • http://files.centerforpilates.com/uploads/1/3/0/8/130814575/b49fe.pdf
    • http://nizelaxem.garden-artworks.com/uploads/1/3/0/8/130874368/92b233b296e519.pdf
    • http://files.bluelabelproducts.net/uploads/1/3/0/8/130813736/bc310713.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/61729891407.pdf
    • https://cdn.shopify.com/s/files/1/0433/7411/7015/files/fdmr_name_ringtone_song.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/givumikekotezazexovuzala.pdf
    • https://cdn.shopify.com/s/files/1/0436/2400/5794/files/32352637223.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/dinoxe.pdf
    • https://cdn.shopify.com/s/files/1/0437/2480/0154/files/bajaj_allianz_general_insurance_claim_form.pdf
    • https://cdn.shopify.com/s/files/1/0437/1467/4841/files/27249566196.pdf
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/aprender_frances_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0437/8922/2045/files/namuvimipif.pdf
    • https://cdn.shopify.com/s/files/1/0436/6693/1862/files/the_marriage_plot_jeffrey_eugenides.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_off00006cbf.bin
14081cc0ad8cbeaf1c06882ac2b05da079d73a0f566a77874b10e4d64d9ad0a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBF 4920 bytes
font_01_sfnt_off00007dca.bin
d9bfabc7d651fc084f30820fea101cf58b1bf5d9e1daa6383fc4b57147b7deae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCA 5108 bytes
font_02_sfnt_off00008f15.bin
9ba519d420c0136250d0934d1feba9454b33aeb8aabfc14773719c3753eba186		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F15 10380 bytes

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