Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e23e1e8a150d7b…

MALICIOUS

PDF

44.3 KB Created: 2020-08-14 01:32:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fb7ce200bbf6e92053e6502b16700a8d SHA-1: 67d44267260acd2917e0b6944e1274ffc86c8a8c SHA-256: c0e23e1e8a150d7bd19bd07db828331456d374751f6aae3a7f8d60798ecc8941
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious payload. The presence of a 'download button' lure further supports this malicious intent. The document body contains text related to 'booklet design' and includes the malicious URL.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=booklet+design+psd+free
    • http://files.spiritedcocktailclasses.com/uploads/1/3/1/8/131856050/5838084.pdf
    • http://ranudolat.allthingsginamarie.com/uploads/1/3/1/4/131438137/5733018.pdf
    • http://files.speedy-lizard.com/uploads/1/3/0/7/130775557/mokal_lusedijepeda.pdf
    • http://files.tulibro915.com/uploads/1/3/0/7/130740173/vetulo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4726/3131/files/66767921136.pdf
    • https://cdn.shopify.com/s/files/1/0433/3908/8027/files/real_algebraic_geometry.pdf
    • https://cdn.shopify.com/s/files/1/0434/5892/0605/files/vozapat.pdf
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/21115534032.pdf
    • https://cdn.shopify.com/s/files/1/0433/4351/1706/files/jaxofedageguj.pdf
    • https://cdn.shopify.com/s/files/1/0440/8649/3349/files/chemistry_book_class_11_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/7729/5516/files/7948912963.pdf
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/23228741154.pdf
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/patofokubilis.pdf
    • https://cdn.shopify.com/s/files/1/0428/6477/1238/files/enlightenment_now_pdf_steven_pinker.pdf
    • https://cdn.shopify.com/s/files/1/0435/2809/3850/files/55043284315.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_off00006923.bin
08cb624fee712bc67782113a7452aa7f513dbb5849178b3c718a5d47f7df7165
pdf-font-stream PDF embedded font (sfnt) at offset 0x6923 5112 bytes
font_01_sfnt_off00007aa3.bin
f493bf9c68c17ddf00c9675fffb23269eb47ded89ce670b9ed59dce1ebcdb349
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA3 13232 bytes