Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb541c960332b691…

MALICIOUS

PDF

58.5 KB Created: 2020-08-20 13:59:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0fc4fd2223f4e94f20a322519e8cf76e SHA-1: 99cc60e8aa4c413ee9a2bcb298e2dab68d647919 SHA-256: cb541c960332b6911e2bad821e02d6e394fa3e47a345338cb52dbcc9a4da2835
128 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm designed to redirect users. One of the primary URLs identified, 'https://ttraff.cc/pify?keyword=a%2526+t+homecoming+2018+performers', is flagged as a malicious redirector. The presence of a 'visual download / call-to-action button lure' heuristic further suggests a deceptive intent. While no scripts were extracted, the overall structure and URL analysis strongly indicate a phishing or malicious redirection attempt.

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=a%2526+t+homecoming+2018+performers
    • http://fulatevaw.singtamlee.com/uploads/1/3/0/7/130739113/begaranoniwegeli.pdf
    • http://files.onesailorboutique.com/uploads/1/3/2/6/132695438/lovabesifobizu-jufosaw.pdf
    • http://files.moregraceoutreach.com/uploads/1/3/1/6/131636654/nukinejifepoginik.pdf
    • http://gedonamu.speakinglifehealthcare.com/uploads/1/3/1/8/131856772/e1f6006.pdf
    • http://files.ckgrealty.com/uploads/1/3/2/7/132712096/xelefadigaxuger-javuduf.pdf
    • http://files.moregraceoutreach.com/up
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/72573813131.pdf
    • https://cdn.shopify.com/s/files/1/0433/5268/6742/files/xinekiseliduwi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/4187453580.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3397/files/xelinusinovegowi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50537202024.pdf
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/lomoxawivi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdf
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/29982987231.pdf
    • https://cdn.shopify.com/s/files/1/0429/2493/3283/files/ms_excel_interview_questions_and_answers_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/wazata.pdf
    • https://cdn.shopify.com/s/files/1/0429/2552/3103/files/doponapitunaparudolizidas.pdf
    • https://cdn.shopify.com/s/files/1/0429/2578/5255/files/56874376694.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_off0000a979.bin
bab72aa332a14f514e4dda603e52ed76711b13acd4f3d8fb67760c27d6a3962f
pdf-font-stream PDF embedded font (sfnt) at offset 0xA979 4144 bytes
font_01_sfnt_off0000b797.bin
0fffc4feeeda92def3b5f2355ab462e7fce7f58ec7e9194f9511b5b29d846089
pdf-font-stream PDF embedded font (sfnt) at offset 0xB797 10956 bytes