Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a004bcfcab22d63…

MALICIOUS

PDF

57.2 KB Created: 2020-08-11 00:53:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8df52967f72ca1c62015f406db5ded87 SHA-1: 5dfccc3422ef0e70c7c6ddfee30eabecbb9192c4 SHA-256: 8a004bcfcab22d631e0426412a090dcd533570d9c0b50c4e389cc1ad0debb131
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 the primary links, 'https://ttraff.cc/pify?keyword=strategic+planning+pdf', is identified as a malicious redirector. This suggests the document's purpose is to lure users into clicking malicious links, likely leading to further compromise.

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=strategic+planning+pdf
    • http://files.transhumancias-voyages.com/uploads/1/3/1/1/131164314/vavigos.pdf
    • http://files.bensawyermusic.co.uk/uploads/1/3/2/7/132740218/kelupotamevivok.pdf
    • http://xevevupu.thebayshorecondos.com/uploads/1/3/2/7/132712615/sotugova_zubefat.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nefodegaxinavikiva.pdf
    • https://cdn.shopify.com/s/files/1/0432/9465/4632/files/74773191411.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijovosulodomozov.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/92161478626.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2918/files/mini_cooper_service_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/4784/5030/files/words_meaning_english_to_urdu_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/4519/0821/files/banished_poradnik_chomikuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/gigepa.pdf
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/sufuparoxexadumuva.pdf
    • https://cdn.shopify.com/s/files/1/0429/8738/9087/files/rugutifuvijun.pdf
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/97381814505.pdf
    • https://cdn.shopify.com/s/files/1/0428/1729/0407/files/73154117931.pdf
    • https://cdn.shopify.com/s/files/1/0434/7179/8424/files/64475423354.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_off0000a331.bin
b9af82216650f51a4211a175fbee22c07ae920c291fdcf60aa77091132597e8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA331 5248 bytes
font_01_sfnt_off0000b513.bin
4ef5fc8c6416857d28c59eff4b4318ce1ab42edfb6ecf33abc13bfa969be5fe4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB513 10180 bytes

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