Malicious PDF — malware analysis report

Static analysis result for SHA-256 56adae12d3f25e88…

MALICIOUS

PDF

43.7 KB Created: 2020-08-15 06:49:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feb926a98f64eb2ac04118c053300e3a SHA-1: f9960abc29ea7655678e6338acc64b4b2def2cc9 SHA-256: 56adae12d3f25e884223707b491bb4bebfd3c9986ee44c7209bc0004c671e620
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is associated with betting app lures. Additionally, a PDF link farm heuristic indicates the document is designed to host numerous external links. The document body, though partially corrupted, contains the malicious URL and references to betting apps, reinforcing the lure. No scripts were extracted, and the primary malicious activity observed is the redirection to a potentially harmful external site.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=betking+betting+app
    • http://files.didierarchitecture.com/uploads/1/3/1/0/131070313/6356b20ec.pdf
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/70500236983.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doxufuvezemog.pdf
    • https://cdn.shopify.com/s/files/1/0428/6837/5719/files/zilezuros.pdf
    • https://cdn.shopify.com/s/files/1/0429/3797/4940/files/976401551.pdf
    • https://cdn.shopify.com/s/files/1/0432/6565/4946/files/public_holidays_qld_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/1464/2070/files/wezobifetuxokidozilukopij.pdf
    • https://cdn.shopify.com/s/files/1/0434/2952/7709/files/455_rancher_parts.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/full_shrimad_bhagwat_geeta_in_gujarati_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/79039895157.pdf
    • https://cdn.shopify.com/s/files/1/0431/9641/6160/files/sifalojiwakezabokelejuvi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6088/7705/files/zegimezabakewotofekoxug.pdf
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/lexuwufaku.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_off00006e76.bin
09ee4db5ad5331df5ebf0e13fef1b4955de79929d23cdd8c73b304f8c56dff43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E76 4932 bytes
font_01_sfnt_off00007f5b.bin
92e0399181ea5e5e5d8b30dd03d8aafae3f6ae285af26023136b5fc5fb4410d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5B 10316 bytes

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