Malicious PDF — malware analysis report

Static analysis result for SHA-256 f97b0c22109f77ea…

MALICIOUS

PDF

49.6 KB Created: 2020-08-01 13:29:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6adf793d863e58d5b4b917a8ba9cf61f SHA-1: e463eaf06ec4a5111eaa06bd8f3b5ce46404b62b SHA-256: f97b0c22109f77ea1689e836d7b24423da4097d021587173fa77badebd017540
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a malicious redirector link. It also contains a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is https://ttraff.ru/pify?keyword=translator+html+code, which is likely used to redirect users to further malicious content. The document body contains garbled text and embedded URLs, reinforcing the malicious nature.

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.ru/pify?keyword=translator+html+code
    • http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.pdf
    • http://files.mzsacredhealing.com/uploads/1/3/1/4/131406610/7767372.pdf
    • http://files.jlcabinetry.com/uploads/1/3/0/8/130814021/4945411.pdf
    • https://cdn.shopify.com/s/files/1/0431/0381/3781/files/59426882133.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/2012_ford_fiesta_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/3500/7893/files/gubejikal.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.pdf
    • https://cdn.shopify.com/s/files/1/0435/1236/5211/files/tixepewiseduxigixanojutal.pdf
    • https://cdn.shopify.com/s/files/1/0436/2996/9561/files/44185397541.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/53083666648.pdf
    • https://cdn.shopify.com/s/files/1/0432/7397/8011/files/96264717035.pdf
    • https://cdn.shopify.com/s/files/1/0429/3358/4035/files/wevijij.pdf
    • https://cdn.shopify.com/s/files/1/0429/2512/9894/files/fikako.pdf
    • https://cdn.shopify.com/s/files/1/0433/5278/5055/files/podozavedemejarifekak.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_off00006b5b.bin
b91dabd8755932f873ccacfe5bb414fb6418ed157a8cbdd18b5d225a3d17f58a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5B 5128 bytes
font_01_sfnt_off00007c97.bin
1bbd112dec80643f9d20b3f7931e5ba18aa3431de7461cb92d6475fc0386593a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C97 21524 bytes

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