Malicious PDF — malware analysis report

Static analysis result for SHA-256 d84ad4f252244875…

MALICIOUS

PDF

46.0 KB Created: 2020-08-18 17:03:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b86315a8374acf1a52085725c4ba5a8 SHA-1: cdf6d0f2c38b4c1c36d4e1cf3e3bb6d92da03bb0 SHA-256: d84ad4f2522448759b03fedbb552c05f2cdc7cb3710c4cf71e43913be3b9dc0a
120 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.cc. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com, likely to manipulate search engine results or lure users. No scripts were extracted from this sample, but the presence of multiple external links suggests a delivery mechanism for further 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=oscillator+circuits+graf+pdf
    • http://files.edgeunderground.com/uploads/1/3/2/6/132696112/dajogo_dogopikunawude_kanubosarovaga.pdf
    • http://neninobix.sexintheplantworld.com/uploads/1/3/0/7/130775795/wipasapuru.pdf
    • http://ritariwak.christinabhoward.org/uploads/1/3/0/7/130775934/kazed-basalagipufuwa-gudivog.pdf
    • https://cdn.shopify.com/s/files/1/0436/5156/3670/files/poxes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.pdf
    • https://cdn.shopify.com/s/files/1/0435/5093/3156/files/jixogopebaxi.pdf
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/goalkeeper_drills.pdf
    • https://cdn.shopify.com/s/files/1/0438/0088/7456/files/91981436637.pdf
    • https://cdn.shopify.com/s/files/1/0435/4703/3752/files/artificial_kidney_research_information.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1702/files/bangla_quran_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lavijado.pdf
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/faguxajipexobeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/prime_loops_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0436/1791/0941/files/ccna_lab_gns3.pdf
    • https://cdn.shopify.com/s/files/1/0434/7471/4790/files/82777700385.pdf
    • https://cdn.shopify.com/s/files/1/0430/8559/4775/files/33317492364.pdf
    • https://cdn.shopify.com/s/files/1/0435/5712/6295/files/lezizunetirutug.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_off0000640e.bin
576a880c52dce883bc4e917161f3f7b128d5bfe1f45ef4c9ae46598d8443c361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x640E 5348 bytes
font_01_sfnt_off00007647.bin
1ef7f6a14653c180ea6a0932031a7b76ba9027926023772a85a65f3d7dfae1f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7647 16520 bytes

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