Malicious PDF — malware analysis report

Static analysis result for SHA-256 948023630214076e…

MALICIOUS

PDF

41.1 KB Created: 2020-08-11 22:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8be80dac20eb1477478f7a35b7147024 SHA-1: 5445601e1b0d35dee240489d2ba20fe07d009c77 SHA-256: 948023630214076eae0fb688f16b97427897c390f49e884b26ee208459e6f9fa
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=chuy%25E1%25BB%2583n+file+pdf+sang+%25E1%25BA%25A3nh+tr%25C3%25AAn+iphone'. This URL is likely part of a phishing campaign designed to trick users into clicking through to a malicious site. The document body also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or content-loading mechanism. The primary malicious IOC is the ttraff.com redirector.

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.com/pify?keyword=chuy%25E1%25BB%2583n+file+pdf+sang+%25E1%25BA%25A3nh+tr%25C3%25AAn+iphone
    • http://files.lgheartministries.com/uploads/1/3/0/9/130969735/3774708.pdf
    • http://files.sagardenclub.org/uploads/1/3/1/3/131398020/5aa8c60a4f897.pdf
    • http://files.wildparrotsupclose.com/uploads/1/3/0/7/130740183/c33025c3.pdf
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/fisicoquimica_atkins_6ta_edicion.pdf
    • https://cdn.shopify.com/s/files/1/0440/5844/3941/files/bernard_lewis_crisis_of_islam.pdf
    • https://cdn.shopify.com/s/files/1/0439/1819/6891/files/soul_music_discworld.pdf
    • https://cdn.shopify.com/s/files/1/0433/9495/7475/files/bsc_syllabus_pune_university.pdf
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/homographs_list.pdf
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/bunavumenuzabimerakemawi.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/29348780048.pdf
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/how_to_remove_dropbox_from_mac.pdf
    • https://cdn.shopify.com/s/files/1/0433/4823/0297/files/jalovalupop.pdf
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/university_of_texas_austin_campus_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/6019/8557/files/11885823393.pdf
    • https://cdn.shopify.com/s/files/1/0431/4261/1095/files/nesotukekuminesewit.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_off00005f91.bin
d8f298275f2cd7f87f0275269edb84647940c65bd9c5dc1af39af73843d62cea
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F91 5936 bytes
font_01_sfnt_off0000728b.bin
909fd97f94e95d4a26fe3cebff6dc63e0cac72ec14fedbdeff217a445d28302b
pdf-font-stream PDF embedded font (sfnt) at offset 0x728B 10080 bytes