Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f96bb9936d60ae2…

MALICIOUS

PDF

46.9 KB Created: 2020-08-06 12:47:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 13f8288118651b9079a2a4c7b3b060cf SHA-1: 7c57b5e6518a1bb0d97e35b9ba18be3a87ea7c82 SHA-256: 3f96bb9936d60ae2e19372f5c392687dde99f49651a448a1d8d1b228fdc699d7
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that points to ttraff.com, which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many of which point to Shopify domains, suggesting a link farm for SEO manipulation or to obscure the true malicious destination. The presence of a 'download button' heuristic further supports the lure-based attack pattern. The document body contains garbled text but includes the malicious URL.

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.com/pify?keyword=electronic+devices+and+circuits+lab+viva+questions+with+answers+pdf
    • http://files.graceyourspace.co/uploads/1/3/0/9/130968996/2851363.pdf
    • http://files.ahsvideo.com/uploads/1/3/1/4/131437753/4463058.pdf
    • http://files.teamzoecancersucks.com/uploads/1/3/1/8/131871721/2021789.pdf
    • http://files.nwkenpo.com/uploads/1/3/1/8/131871535/19fc5c.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/vawejuxejabulok.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/biludetejuvujatolometa.pdf
    • https://cdn.shopify.com/s/files/1/0435/2039/3380/files/navodaya_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0434/7789/3270/files/14744197421.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1149/files/77338532028.pdf
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/golebuzupofi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1250/5243/files/sonic_chronicles_the_dark_brotherhood_rom.pdf
    • https://cdn.shopify.com/s/files/1/0434/4188/1253/files/pegoduzot.pdf
    • https://cdn.shopify.com/s/files/1/0432/4530/6011/files/dotowul.pdf
    • https://cdn.shopify.com/s/files/1/0430/9165/6864/files/bedatogavalopinizalu.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/1/0431/741

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007304.bin
e147fa87c5b0e9ddd1ad62088f767dbc758b22375be8d9fe5b94fef952a0b342
pdf-font-stream PDF embedded font (sfnt) at offset 0x7304 5616 bytes
font_01_sfnt_off0000862d.bin
f3a3fea14025e21a36791a5d82b8b6735378c2658611a55109e4ce48f4e86e6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x862D 12408 bytes