Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e9d722c2e2d7241…

MALICIOUS

PDF

38.5 KB Created: 2020-08-04 20:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72980182f4b46e145376566c7f598add SHA-1: e70f080908d89dcf723ff4ed7268ccf7b7fa9563 SHA-256: 8e9d722c2e2d72411c60f148ec4c40273d21b15024bb73b7f353540927a22c77
120 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 a redirector service. The primary heuristic firing indicates that the document links to known malicious redirector infrastructure. The document body contains text that appears to be a lure for a PDF download, further supporting the malicious intent of redirecting users to potentially harmful 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=annemarie+schimmel+pdf+download
    • http://files.northernumpires.com/uploads/1/3/0/7/130775357/d0b6aaf.pdf
    • http://dureruno.listerpartyrental.com/uploads/1/3/1/4/131437886/3214334.pdf
    • http://files.hunterdelves.com/uploads/1/3/1/4/131438193/257202.pdf
    • http://files.us-arabchamber.org/uploads/1/3/1/4/131438203/224404.pdf
    • http://files.mindyourbodyfitnessandnutrition.com/uploads/1/3/2/7/132712530/1591835.pdf
    • https://cdn.shopify.com/s/files/1/0431/9897/2066/files/sepukowara.pdf
    • https://cdn.shopify.com/s/files/1/0435/1547/8176/files/44296279219.pdf
    • https://cdn.shopify.com/s/files/1/0433/4449/4750/files/45454108551.pdf
    • https://cdn.shopify.com/s/files/1/0431/8347/2791/files/68762377668.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/vawafigirokinitidobanu.pdf
    • https://cdn.shopify.com/s/files/1/0441/3331/8808/files/composite_numbers_from_1_to_100.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/nozuvajevaveze.pdf
    • https://cdn.shopify.com/s/files/1/0429/2935/6959/files/abandoned_projects_in_nigeria_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/54385028767.pdf
    • https://cdn.shopify.com/s/files/1/0431/4677/2629/files/91224925292.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80835258875.pdf
    • https://cdn.shopify.com/s/files/1/0434/6799/7344/files/xitusosul.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_off000048e7.bin
9db0b5041204a09b5951ad811dfeb5254e725d9422684b56996836855be80595
pdf-font-stream PDF embedded font (sfnt) at offset 0x48E7 5184 bytes
font_01_sfnt_off00005a53.bin
82abe65c2aa91c7a8a3e598a8bee0a03fe5f16db058ab65f3f1041dac228e62c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A53 11192 bytes
font_02_sfnt_off00007ea5.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA5 4324 bytes