Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfb562004316060b…

MALICIOUS

PDF

39.7 KB Created: 2020-08-19 13:15:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f321fd71ae83f37f713b7d958bfe7c8 SHA-1: 7bf59e4c275868c7abc306861835b52ef8e764fe SHA-256: bfb562004316060bacdfbb471a72958d809f171df6d13b51a590fa15be8b730a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a utility for printing web pages to PDF. The document body and embedded URLs reinforce this lure. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly. No scripts were extracted, limiting the analysis of further execution stages.

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/pify?keyword=print+website+to+pdf+as+it+appears
    • http://dopof.nikiahseeds.com/uploads/1/3/2/6/132681351/kosepamasoli.pdf
    • http://files.nsacchitella.studio/uploads/1/3/0/7/130775515/7d5235.pdf
    • https://cdn.shopify.com/s/files/1/0430/8094/1729/files/dexamagulexatulezirubebuw.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/60th_wedding_anniversary_invitations_templates_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/3009509520.pdf
    • https://cdn.shopify.com/s/files/1/0438/1756/6368/files/nomelakopa.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/93716279985.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8775/files/zebuxavisuju.pdf
    • https://cdn.shopify.com/s/files/1/0436/5543/0302/files/81576508125.pdf
    • https://cdn.shopify.com/s/files/1/0436/9825/8088/files/runir_2_fichiers_en_un_seul.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65496272691.pdf
    • https://cdn.shopify.com/s/files/1/0437/4547/6762/files/21914834829.pdf
    • https://cdn.shopify.com/s/files/1/0436/1804/2018/files/delukaxawaxi.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_off00005b56.bin
d99e42b4c32e311cad091c0e46327f2733fb6675fc24be1f458f87332c362ab5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B56 5236 bytes
font_01_sfnt_off00006d35.bin
9b5feff4cb59952486f4f852eaed8f198b0f926acb8c31e6354f7f8284395d04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D35 10804 bytes

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