Malicious PDF — malware analysis report

Static analysis result for SHA-256 af244d15ed068b24…

MALICIOUS

PDF

39.4 KB Created: 2020-08-18 15:26:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff7d7131f3017242e1b74c3c8fb70c48 SHA-1: f06f359d48668213a758ff20054a57c319b98402 SHA-256: af244d15ed068b246946b095bb3b21fe69e8a993f907591449e43be46e15f913
120 Risk Score

Malware Insights

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

The PDF contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=physics+today+pdf, which is likely intended to redirect users to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, likely for SEO manipulation or to host 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=physics+today+pdf
    • http://files.vanforum.org/uploads/1/3/1/1/131163859/e3a42857.pdf
    • http://files.ayusewingproject.org/uploads/1/3/1/8/131856176/8095295.pdf
    • http://files.moretonislandfishingcharters.com/uploads/1/3/1/6/131606321/xigilu_xawagixumozizi_jasufozup.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/xipowiwepizavuvenado.pdf
    • https://cdn.shopify.com/s/files/1/0438/3067/3565/files/47998739094.pdf
    • https://cdn.shopify.com/s/files/1/0435/7960/5147/files/colour_blindness_test_chart.pdf
    • https://cdn.shopify.com/s/files/1/0434/0586/9213/files/xuxuwubidusukasaru.pdf
    • https://cdn.shopify.com/s/files/1/0434/3336/1574/files/hearthstone_handlock_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/tovopopavata.pdf
    • https://cdn.shopify.com/s/files/1/0431/0745/1029/files/bulletin_de_salaire_vierge_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/2228/4960/files/ba-_207_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/4376/6950/files/aadhar_card_form_maharashtra.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/tofepinigimemagomunutud.pdf
    • https://cdn.shopify.com/s/files/1/0431/6318/9412/files/nubofuriwiwijovagese.pdf
    • https://cdn.shopify.com/s/files/1/0436/4628/8025/files/tevejirodonesazekele.pdf
    • https://cdn.shopify.com/s/files/1/0431/1633/1172/files/jibirovakawufegowajij.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005024.bin
51d989624a853f866bad732d70f869800a07a8fe28c824043d40d88c0a24c201
pdf-font-stream PDF embedded font (sfnt) at offset 0x5024 4784 bytes
font_01_sfnt_off00006071.bin
149ee8b087c205bc9ead05348572492f06f96b494ba06660749b1c6014ba8365
pdf-font-stream PDF embedded font (sfnt) at offset 0x6071 10084 bytes
font_02_sfnt_off000082dd.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x82DD 4324 bytes