Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e0c235c60a5b9d8…

MALICIOUS

PDF

35.3 KB Created: 2020-08-29 17:15:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d4c1e8b8604714cfd82b6b8605c00cdc SHA-1: dda002d326dd632ef12ab945770e67df2e6612cc SHA-256: 2e0c235c60a5b9d8d2b47eae7cadd84d722f2834f83448d11e2e93edb615ff28
152 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically ttraff.com. The document body, though heavily obfuscated, contains text related to a 'Woolworths end of financial year report' and the malicious URL. This suggests a phishing attempt designed to redirect users to malicious content, likely for credential harvesting or malware delivery.

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.com/wix?keyword=woolworths+end+of+financial+year+report
    • https://cdn.shopify.com/s/files/1/0433/5324/3816/files/contact_form_email_template_in_drupal_8.pdf
    • https://cdn.shopify.com/s/files/1/0434/4512/5281/files/xusabuxuzop.pdf
    • https://cdn.shopify.com/s/files/1/0441/3535/0424/files/girl_figure_drawing.pdf
    • https://static.usrfiles.com/ugd/b8c837_fd4b319d51fe4425b795c71f3345c35d.pdf
    • https://static.usrfiles.com/ugd/b8c837_73d44f7e83164624909aa3b40919c01f.pdf
    • https://static.usrfiles.com/ugd/b8c837_da5028f350dc4683a595fb0ca8d22376.pdf
    • https://static.usrfiles.com/ugd/b8c837_ec97949417784b42addb4dcfc33af21e.pdf
    • https://static.usrfiles.com/ugd/b8c837_854c2fd46a664c888cd916e048a33000.pdf
    • https://static.usrfiles.com/ugd/b8c837_99c046e40dcc4af7983cd09e6ce7d7d5.pdf
    • https://static.usrfiles.com/ugd/b8c837_2686345c256747728c1e181d2843e5d2.pdf
    • https://static.usrfiles.com/ugd/b8c837_93acebf79db545608ff8a3e82f9c4b1b.pdf
    • https://static.usrfiles.com/ugd/b8c837_269a0ae271c24819a837d7c986639da6.pdf
    • https://static.usrfiles.com/ugd/8b97dd_d4b9599e5f034a1eaf88a3b965b236cb.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f5df364077b4c2c9bb7c1e71aeafdba.pdf
    • https://static.usrfiles.com/ugd/b8c837_26b58eef2d594002986b9e92037c8a4b.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_off00004c58.bin
7500d9f51af58fdcf8e2945d0ad89041be18c6d3d074f9422bee08111381a8b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C58 5448 bytes
font_01_sfnt_off00005efa.bin
3e851445e2ecb198d2e3296522f3c11e68d77ff5d23b50c6386200fde6be8e37
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFA 9752 bytes