Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab0b7df360579cc1…

MALICIOUS

PDF

37.5 KB Created: 2020-08-14 19:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c8bee297e24f5899a46c3ae19a64af3 SHA-1: 30da914c6d4a7c3907df087121555382e76b0287 SHA-256: ab0b7df360579cc156b7311679b7f3c50d3ad6388a4aacc4fd51a93761f4429b
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 hosted on Shopify. One of these links, https://ttraff.cc/wb?keyword=galletti%20air%20conditioner%20manual, is identified as a malicious redirector. This suggests the document is designed to direct users to malicious infrastructure, likely for further exploitation or phishing.

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/wb?keyword=galletti%20air%20conditioner%20manual
    • http://files.akasimikrasna.sk/uploads/1/3/1/6/131637108/kegudenijasaxet-simologibi.pdf
    • http://lavumoded.magistrasolomon.org/uploads/1/3/2/6/132681556/pakavul-ferakababafiwep-zafadu.pdf
    • http://files.canalandrivertours.com/uploads/1/3/1/3/131383318/f36dcf00dffb33.pdf
    • http://ziniri.hongqiangliu.com/uploads/1/3/0/9/130969060/lalitosejagemakuxu.pdf
    • http://files.jerkngo-olympiafields.com/uploads/1/3/1/4/131453124/31105e002c.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/77737617236.pdf
    • https://cdn.shopify.com/s/files/1/0434/3850/6146/files/esmeralda_nadya_ruza.pdf
    • https://cdn.shopify.com/s/files/1/0433/9679/2471/files/8311229925.pdf
    • https://cdn.shopify.com/s/files/1/0436/7178/1526/files/24897821123.pdf
    • https://cdn.shopify.com/s/files/1/0434/3509/8264/files/lezup.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/gat_analogies.pdf
    • https://cdn.shopify.com/s/files/1/0436/8770/6777/files/afc_asian_cup_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0431/0230/6468/files/sunit.pdf
    • https://cdn.shopify.com/s/files/1/0437/5396/3678/files/alice_in_wonderland_full.pdf
    • https://cdn.shopify.com/s/files/1/0433/6094/4286/files/industrial_wastewater_treatment_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/92914279481.pdf
    • https://cdn.shopify.com/s/files/1/0429/4773/9811/files/sagonulipotidesesopade.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/315_pares_biomagneticos.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_off00005610.bin
db39b6c112aac583c97630e74dcfb28296e3a6e605d702cbe6e965d8875374b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5610 4940 bytes
font_01_sfnt_off000066be.bin
21cdb88b559f0fbe81b9d5f71ddfc7cf13b46c9b54bc71c4e30f707ba1d7cdcf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66BE 9992 bytes

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