Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a5745fd9d935729…

MALICIOUS

PDF

37.2 KB Created: 2020-08-19 15:58:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 419633cc26dbfb12e9b26f32442dd540 SHA-1: 95fc2303137aaa71f96f84c0a57d2064d19c6680 SHA-256: 9a5745fd9d93572904a29999acbaac34e1c9593dd1e1063a4481c72cd9977181
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'map of australia blank pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a malicious redirector link indicates the document is designed to lead the user to a harmful destination.

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=map+of+australia+blank+pdf
    • http://files.heartcbarrelhorses.com/uploads/1/3/1/4/131453456/e5957.pdf
    • http://files.corijacobs.com/uploads/1/3/1/3/131380438/zinopexum.pdf
    • http://files.tennisjoopbroens.com/uploads/1/3/1/3/131398507/masabiwakowok.pdf
    • http://files.ukuleleclub.org.uk/uploads/1/3/0/8/130813887/totalubufo.pdf
    • http://boneso.stfrancesbasketball.com/uploads/1/3/1/4/131453741/f71994dc8.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/57984473164.pdf
    • https://cdn.shopify.com/s/files/1/0431/8520/9507/files/windows_7_aggiornamenti_0.pdf
    • https://cdn.shopify.com/s/files/1/0433/9138/5758/files/tan_number_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xibirinadinabamagumib.pdf
    • https://cdn.shopify.com/s/files/1/0431/6440/1818/files/the_audacity_of_hope_speech.pdf
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/28295402008.pdf
    • https://cdn.shopify.com/s/files/1/0432/1483/1780/files/canteen_management_system_project_documentation.pdf
    • https://cdn.shopify.com/s/files/1/0431/6938/2568/files/kefiwada.pdf
    • https://cdn.shopify.com/s/files/1/0433/4868/9050/files/vscode_format_code_java.pdf
    • https://cdn.shopify.com/s/files/1/0437/0097/7816/files/12502672882.pdf
    • https://cdn.shopify.com/s/files/1/0432/9717/7768/files/ct_ghp_trang.pdf
    • https://cdn.shopify.com/s/files/1/0429/0222/5059/files/viboronogo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6110/7105/files/juwaxupefudomerobojo.pdf
    • https://cdn.shopify.com/s/files/1/0439/2858/4347/files/33584753787.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_off00005293.bin
267783ac5ec62b48dd4e3593c23570a66e6495f8eea90301b28a5f0a98a335ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x5293 5244 bytes
font_01_sfnt_off00006473.bin
ab35411b1cc6cb5c73e8c19c98f1b3ff857f0c6e160b82fa71a943a4d4af6d11
pdf-font-stream PDF embedded font (sfnt) at offset 0x6473 10340 bytes