Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1aaa42be31cee92…

MALICIOUS

PDF

36.9 KB Created: 2020-08-20 20:40:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3be0ec79d9042e711cacba1ce1f3ca82 SHA-1: 397392166778fc77bf865eadb87480b9f5d6c28b SHA-256: e1aaa42be31cee928595ece4c9addccf501a8f8461a6970d677635b62a2c4038
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=wicked+defying+gravity+sheet+music+free', is identified as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to redirect users to malicious sites, potentially for phishing or malware distribution.

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=wicked+defying+gravity+sheet+music+free
    • http://vexubad.tripinary.com/uploads/1/3/0/8/130874359/zirifo.pdf
    • http://files.phishross.com/uploads/1/3/2/6/132682802/vumozopazelin-jatudowavowas.pdf
    • http://files.bigrapidsdriving.org/uploads/1/3/0/7/130740517/noniti.pdf
    • http://files.grangertheatre.com/uploads/1/3/2/6/132695572/najosa-liludaw.pdf
    • https://cdn.shopify.com/s/files/1/0441/1051/2280/files/39298910261.pdf
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/wazos.pdf
    • https://cdn.shopify.com/s/files/1/0440/4379/6645/files/kifodegafananolewunuris.pdf
    • https://cdn.shopify.com/s/files/1/0434/8710/1094/files/12191730973.pdf
    • https://cdn.shopify.com/s/files/1/0437/2827/3569/files/arya_dj_mix_songs.pdf
    • https://cdn.shopify.com/s/files/1/0431/2544/0669/files/carlson_biopsychology.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/fusosavazixanabofam.pdf
    • https://cdn.shopify.com/s/files/1/0433/3859/6511/files/najixobu.pdf
    • https://cdn.shopify.com/s/files/1/0450/2398/5828/files/16220035746.pdf
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/fivaxa.pdf
    • https://cdn.shopify.com/s/files/1/0438/3368/8226/files/kulip.pdf
    • https://cdn.shopify.com/s/files/1/0435/6230/3637/files/hallelujah_jeff_buckley_guitar.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_off00005004.bin
a46da41cfebd6534633489d99f228b57333d0115b7f62c3aaf8d350689f0727a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5004 5644 bytes
font_01_sfnt_off00006325.bin
3d84043995f50162ce4d7ed34cd8a954e74f3271daa65edbb6a2ffc0788e1dac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6325 10420 bytes

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