Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd554362f2fcc4d9…

MALICIOUS

PDF

39.1 KB Created: 2020-07-08 18:16:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6849bc109877bfa2fde94f5028c408eb SHA-1: 768fb910143be56d80286ed16a4e78948fd23393 SHA-256: dd554362f2fcc4d9572e076b803366a1d43fabff24d52f862ad0ceb95025b68e
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 various domains. The primary link, 'https://ttraff.com/wb?keyword=nespresso%20aeroccino%203%20manual', is identified as a malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution, under the guise of providing a product manual.

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.com/wb?keyword=nespresso%20aeroccino%203%20manual
    • http://files.cleaninvention.com/uploads/1/3/1/8/131856844/9e701a5b1f5b55d.pdf
    • http://files.tdmxt.com/uploads/1/3/1/0/131071035/3472978.pdf
    • http://files.carolinastormhedgehogs.com/uploads/1/3/1/6/131637291/fanipewonosewagafuv.pdf
    • http://files.afmsupplements.com/uploads/1/3/2/3/132302815/972851.pdf
    • http://files.austinguineapigrescue.com/uploads/1/3/1/3/131398281/4eae46.pdf
    • http://files.jmn-i.com/uploads/1/3/0/8/130814642/badegumun-vafadivo.pdf
    • http://files.midtown-office-space.co.uk/uploads/1/3/0/9/130969004/7276851.pdf
    • http://files.wlcbands.com/uploads/1/3/1/6/131607712/2769e0d94.pdf
    • https://jagogoti.files.wordpress.com/2020/07/88644030889.pdf
    • https://zodijuva.files.wordpress.com/2020/07/zelufewunefomoge.pdf
    • https://xonizozuf32356378.files.wordpress.com/2020/06/vusisaxinunuredo.pdf
    • https://mufumileroko.files.wordpress.com/2020/06/17851033433.pdf
    • https://wowewuso.files.wordpress.com/2020/07/44802648095.pdf
    • https://pigarudumo.files.wordpress.com/2020/06/zoraninomi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kosetomamevisired.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34530012154.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zenafepejeviwasi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sosivizugepu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98973723668.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/55864873889.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_off00005c34.bin
4e49618b01b5dd7df74d19dc85c769c9b4c1c3a285a39f1e7d672dede866da4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C34 5016 bytes
font_01_sfnt_off00006d1b.bin
d09b5ce6bdabd8ab2d751299e51d3a5d3bc5781ebab8c8b1f94687ecc7aea154		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D1B 10172 bytes

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