Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba0cdbe22f4d0f9…

MALICIOUS

PDF

46.7 KB Created: 2020-08-10 20:56:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d3e4214e14d1ceec6ab649a87e11ce5 SHA-1: 52d17dcd7b4ffcb2fd69018491012f2c72fa066f SHA-256: aba0cdbe22f4d0f9a29091c3286f2bf60ea2e5bcd0341b7311a51b4701d55cd3
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at https://ttraff.cc/pify?keyword=carcassonne+game+supplementary+rules+pdf. This indicates the document is designed to redirect users to malicious infrastructure, likely for further exploitation or phishing. The document body, though heavily obfuscated, contains references to the redirector URL and numerous other PDF links hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute the malicious content.

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=carcassonne+game+supplementary+rules+pdf
    • http://files.boxedspapercrafts.com/uploads/1/3/0/9/130969140/peninurifaxu.pdf
    • http://files.sitiaoceanides.com/uploads/1/3/0/7/130740316/tunupebozafimaz.pdf
    • http://files.kercon.ie/uploads/1/3/0/7/130738753/1768268.pdf
    • http://files.katyaderksen.com/uploads/1/3/1/8/131858287/fekulimaxole.pdf
    • http://files.barnsandburleycandleco.com/uploads/1/3/0/8/130813528/ruzaf.pdf
    • https://cdn.shopify.com/s/files/1/0434/0835/9589/files/rrb_ntpc_cen_01_2020_notification.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72710717911.pdf
    • https://cdn.shopify.com/s/files/1/0434/7065/1542/files/mcquarrie_physical_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/silekizezimepajetidomok.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/11688174019.pdf
    • https://cdn.shopify.com/s/files/1/0435/6512/1695/files/wobuleg.pdf
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/12532023678.pdf
    • https://cdn.shopify.com/s/files/1/0433/4937/7174/files/certificado_medico_en_blanco_bolivia.pdf
    • https://cdn.shopify.com/s/files/1/0430/7766/4929/files/96674535269.pdf
    • https://cdn.shopify.com/s/files/1/0439/4260/9051/files/dabajakadovabapola.pdf
    • https://cdn.shopify.com/s/files/1/0437/9587/3949/files/jefinipuzirugebomiwov.pdf
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/lajop.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_off00006d21.bin
4175b30fda30d12c8efe98e6518d6e26781967b64b4312b8f0b2c332d6922f51
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D21 5484 bytes
font_01_sfnt_off00007fbc.bin
4e1f157f33b7c3f1335843eabd8a59c2c23247ea0e05a30f4a45e49263afce36
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBC 14512 bytes