Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b4220d7121c34e5…

MALICIOUS

PDF

46.5 KB Created: 2020-08-09 20:08:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0cf5148e5c074e0771f9892755b62416 SHA-1: 266cf126cb9739fc3c5c9aee0a0e08c64e7835ee SHA-256: 9b4220d7121c34e5540e1fbe6abe15be352c3d4545837551834dbfb7487723a9
152 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Beanie babies price guide 2020 pdf' and embeds a link that redirects to malicious infrastructure via 'ttraff.cc'. This indicates a phishing or social engineering attempt to redirect users to harmful content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=beanie+babies+price+guide+2020+pdf
    • http://files.keegantucker.net/uploads/1/3/1/4/131438461/mujixorid.pdf
    • http://files.ufloriaorganics.com/uploads/1/3/1/4/131437983/fa0a72e40.pdf
    • http://files.studioprbozeman.com/uploads/1/3/1/4/131406108/6780566.pdf
    • http://files.wearemindnmusic.com/uploads/1/3/0/9/130969241/kopudeguvunivukef.pdf
    • http://files.215music.net/uploads/1/3/0/7/130739833/janike.pdf
    • https://cdn.shopify.com/s/files/1/0437/7165/8389/files/robasepapuzes.pdf
    • https://cdn.shopify.com/s/files/1/0437/4603/3818/files/basketball_rules_test.pdf
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/surovenojaxupigixakus.pdf
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/68476222371.pdf
    • https://cdn.shopify.com/s/files/1/0432/4261/9035/files/62230085411.pdf
    • https://cdn.shopify.com/s/files/1/0430/0773/8019/files/elements_of_ecology_9th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/1542/1599/files/41278417455.pdf
    • https://cdn.shopify.com/s/files/1/0431/7275/7670/files/mifajuborav.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4344/files/69739898727.pdf
    • https://cdn.shopify.com/s/files/1/0433/4285/6344/files/91499810877.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/rikano.pdf
    • https://cdn.shopify.com/s/files/1/0430/3545/9738/files/34279796870.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_off0000767d.bin
4a1e09cc642ec3448838c6dd7da56e66a11741a7a49375df5178dc9e3ee2d00d
pdf-font-stream PDF embedded font (sfnt) at offset 0x767D 5752 bytes
font_01_sfnt_off00008a1e.bin
2e32bb4225468d40fe8a3861ee136284d322b6fc5d757cedf3b0f959e853be1a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A1E 10312 bytes