Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7f9cbf01c13a3ac…

MALICIOUS

PDF

43.6 KB Created: 2020-08-09 00:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e31d8d0644803da954cc5f88dfec2e0 SHA-1: 3c16155c678aa3285c5289a4ed0ceb7b93e8eba0 SHA-256: e7f9cbf01c13a3ac9da22f6ef3360dd272c5a1337df900fa699c4ca5c139d224
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Buku sistem pencernaan manusia pdf' and the malicious URL, suggesting a lure to download potentially harmful content. The presence of numerous links, including the malicious one, indicates a link farm or redirection attack designed to lead users to malicious infrastructure.

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=buku+sistem+pencernaan+manusia+pdf
    • http://xezir.winnebagoarchersinc.com/uploads/1/3/0/7/130776487/navamufut.pdf
    • http://files.aumyogaannarbor.com/uploads/1/3/0/8/130874154/3cd2f4d5eb4d99.pdf
    • http://files.stagemusicstudios.com/uploads/1/3/2/6/132681556/kajezexidopevotoxis.pdf
    • https://cdn.shopify.com/s/files/1/0433/9056/6556/files/youtube_to_mp4_longer_than_2_hours.pdf
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/sufitepaveris.pdf
    • https://cdn.shopify.com/s/files/1/0431/0279/7986/files/nujivuzoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/3989/1357/files/rizeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/59240112947.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/passion_play_2010.pdf
    • https://cdn.shopify.com/s/files/1/0434/5780/6488/files/jafekuveb.pdf
    • https://cdn.shopify.com/s/files/1/0435/5656/9249/files/10701095156.pdf
    • https://cdn.shopify.com/s/files/1/0432/9177/1046/files/boxafikufotivigiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/3810/5000/files/danariwixuguxituzikevosub.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_off00006065.bin
4845607ed6ca29d4554e29833a5db17c473894f8f94003dc8c2c78775b2b7ed8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6065 5152 bytes
font_01_sfnt_off000071d0.bin
295f2566f69d76e164216470697a1067aa1f13086d2cc8ad66a1b80f4acca315		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71D0 9772 bytes
font_02_sfnt_off0000934d.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x934D 4324 bytes

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