Malicious PDF — malware analysis report

Static analysis result for SHA-256 40e1201510694f4a…

MALICIOUS

PDF

40.9 KB Created: 2020-09-03 23:47:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 04988b2a8c5cbfecf7198b8ff38bd351 SHA-1: dc190c3e6af9b056e6ce813bcdb39ee72d8b15e5 SHA-256: 40e1201510694f4ad36cddc95de9d4151ddcf87ebe84e986f4d9525194605232
150 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, specifically pointing to 'https://ttraff.me/wix?keyword=sparkle+2012+full+movie'. This URL is presented within the document body, suggesting a lure to trick users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.me/wix?keyword=sparkle+2012+full+movie
    • https://cdn.shopify.com/s/files/1/0439/9549/6606/files/lawrence_cager_injury_report.pdf
    • https://cdn.shopify.com/s/files/1/0437/0238/6856/files/86925217828.pdf
    • https://cdn.shopify.com/s/files/1/0440/5601/9109/files/23938799198.pdf
    • https://cdn.shopify.com/s/files/1/0436/9619/3686/files/navy_dress_blues_regulations_enlisted.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/44416936486.pdf
    • https://static.usrfiles.com/ugd/37428b_31853d676db242e3b5e8d14fd7f39df5.pdf
    • https://static.usrfiles.com/ugd/b8c837_770bf3c3d14943f8bd9de74929a16c86.pdf
    • https://static.usrfiles.com/ugd/516574_4d638ab4bd6d4af4ad2459acba32910a.pdf
    • https://static.usrfiles.com/ugd/e7e4a0_7faa946d18eb4c91a4463a1c387a8447.pdf
    • https://static.usrfiles.com/ugd/432b07_f12c932062b14bd781030c174968e951.pdf
    • https://static.usrfiles.com/ugd/63d3ad_b05a66390ca64a1283f783e6c066482a.pdf
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/dax_brsen_news_performance.pdf
    • https://cdn.shopify.com/s/files/1/0431/5096/6950/files/13575730558.pdf
    • https://cdn.shopify.com/s/files/1/0429/2493/3283/files/roland_barthes_mythologies_download.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_off0000612a.bin
927b32878394f78a2ffe87e3b8d672b7bc073327da40220dff2a7cd89f98475f
pdf-font-stream PDF embedded font (sfnt) at offset 0x612A 5420 bytes
font_01_sfnt_off00007394.bin
1b03a3c12efe30a0e286ce9388b3a2dd6fa15070a09f4cb444e24467ec57da9f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7394 10352 bytes