Malicious PDF — malware analysis report

Static analysis result for SHA-256 a399b32c09086fb4…

MALICIOUS

PDF

65.0 KB Created: 2020-08-17 10:19:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a70d2d710f59f8a6d935e239134c9fe SHA-1: 6934af7e46fffd9a3eb4025ddd53ad92f6af062a SHA-256: a399b32c09086fb407011a4b162b87de1945a411a2c3d70431c1bff50491541c
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, disguised as an episode guide for the TV show 'Suits'. The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is https://ttraff.cc/pify?keyword=suits+episode+guide+and+air+dates, which is used to redirect the user to further malicious 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=suits+episode+guide+and+air+dates
    • http://files.laverocklawcottages.com/uploads/1/3/1/1/131163540/9914545.pdf
    • http://zefisojan.thehairandmakeupschool.co.uk/uploads/1/3/1/6/131607062/327660.pdf
    • http://womebu.spokesmenmasterscycling.com/uploads/1/3/0/7/130775606/ruzixemavijoje_misoref_pafuzogir_ropobusoxufegik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0966/2366/files/31000923036.pdf
    • https://cdn.shopify.com/s/files/1/0434/0881/8333/files/27281491474.pdf
    • https://cdn.shopify.com/s/files/1/0435/6279/5171/files/log_book_template_for_doctors.pdf
    • https://cdn.shopify.com/s/files/1/0431/4896/8090/files/vavugokelerebideta.pdf
    • https://cdn.shopify.com/s/files/1/0435/3166/5562/files/20021608132.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9120/files/northstar_reading_and_writing_3_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/xejivajexazibalenizopisu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/37167627909.pdf
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/45123605864.pdf
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/rozosuzinufatimizotaze.pdf
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/cause_and_effect_worksheets_7th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0432/7217/5784/files/10000_days_to_years.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fufalelavajukunegaxiz.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/
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/cause_and_effect_worksheets_

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b3d6.bin
0d017dbb5b9bdf27f2f0e9dc3433303fa83bc1587dfe01938a6b9ec17ac430a4
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3D6 5200 bytes
font_01_sfnt_off0000c589.bin
1aeb6520445a2b3d465c92178d571a9af7fa0bd48fe455a14bf98bdcafbc45ed
pdf-font-stream PDF embedded font (sfnt) at offset 0xC589 16012 bytes