Malicious PDF — malware analysis report

Static analysis result for SHA-256 96d6182d1f8b9400…

MALICIOUS

PDF

45.1 KB Created: 2020-08-07 05:55:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 448525833108e6d2a46bf03e084c8bfd SHA-1: 6a364472f021be604c845cd5c91a48b396e16613 SHA-256: 96d6182d1f8b940072878747765ee167a6ddfbc329dab224e8a10d599114d744
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one specific URL, 'https://ttraff.ru/pify?keyword=volume+and+surface+area+of+rectangular+prism+worksheet+pdf', is identified as a malicious redirector. This suggests the document is designed to lure users into clicking the link, likely leading them to a malicious site for further exploitation. No scripts were extracted from this sample.

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=volume+and+surface+area+of+rectangular+prism+worksheet+pdf
    • http://dosupe.globalacademicconsulting.com/uploads/1/3/1/8/131872225/maxodi.pdf
    • http://files.leonafrancombe.com/uploads/1/3/0/8/130874284/74419.pdf
    • http://files.nandrews.net/uploads/1/3/1/3/131381369/3656327.pdf
    • https://cdn.shopify.com/s/files/1/0434/0885/1098/files/1030171069.pdf
    • https://cdn.shopify.com/s/files/1/0429/9181/2767/files/components_of_empirical_research_and_examples.pdf
    • https://cdn.shopify.com/s/files/1/0435/2969/9482/files/67158423244.pdf
    • https://cdn.shopify.com/s/files/1/0438/9689/7704/files/rujifedudiwa.pdf
    • https://cdn.shopify.com/s/files/1/0436/5526/6454/files/23515958327.pdf
    • https://cdn.shopify.com/s/files/1/0433/7549/3271/files/telimevamovopizisilidi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/rigutedifewo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/wozoxoratozakupodusada.pdf
    • https://cdn.shopify.com/s/files/1/0434/8136/6693/files/gusorumonisu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99914628395.pdf
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/32661969485.pdf
    • https://cdn.shopify.com/s/files/1/0433/7218/3710/files/responsive_classroom_teacher_language.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/rarexa.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_off000065a3.bin
c4bcc062b9af722f4ee83f7c077947945b10dc6de100999245945c16455e5e48
pdf-font-stream PDF embedded font (sfnt) at offset 0x65A3 2320 bytes
font_01_sfnt_off00007037.bin
e0cc3fe08ed86f3591058fc42dac935e479bfd74a255c98510237aa68291a8c6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7037 5688 bytes
font_02_sfnt_off00008380.bin
c286bf8a2db3ca364746f870d191fdb97e2721e39207b7d4b2a5f0320cc8173d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8380 10288 bytes