Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f553ff360e62585…

MALICIOUS

PDF

69.0 KB Created: 2020-08-30 06:06:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c531960c9ec5ceb94c661a7426eb7b5 SHA-1: 4c2d84b4b5c104326f44246c464ad5781f74dfb2 SHA-256: 3f553ff360e62585330d3dfac896979f5fd517336ce5a4441c68c688cd2117e9
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=anti+intellectualism+in+american+life+pdf'. This indicates an attempt to redirect the user to a malicious site, likely for phishing or malware distribution. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The file also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting a broader campaign to distribute 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.com/wix?keyword=anti+intellectualism+in+american+life+pdf
    • https://static.usrfiles.com/ugd/bb13a2_0c39093670ec4f76be44f3e72b993d93.pdf
    • https://static.usrfiles.com/ugd/7ff653_48d58aa30f4140b3b804d6d7ac0046e7.pdf
    • https://static.usrfiles.com/ugd/b8c837_23b49f4d1d194ea6ab94de09e6916209.pdf
    • https://static.usrfiles.com/ugd/b8c837_e9c4ddd1fcf14e5c8f4eefad11cccdba.pdf
    • https://static.usrfiles.com/ugd/5b9a87_9cd2285abc694a4da4b4a024b6f770ae.pdf
    • https://static.usrfiles.com/ugd/b8c837_b80a51276c4640d8b781c73719c34f29.pdf
    • https://static.usrfiles.com/ugd/1c90dc_91a262fca3a94a9aad9ea372cd808e75.pdf
    • https://static.usrfiles.com/ugd/a76634_0ecf3b6c6dec4d93a1eca12eb42a5c21.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_cc62e553474a42b5ae43e3b5cb5accc8.pdf
    • https://static.usrfiles.com/ugd/b8c837_1a12568969754dccaee4bf1f88b6d39a.pdf
    • https://cdn.shopify.com/s/files/1/0434/2048/3751/files/volajita.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/sopepaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9799/files/shambhu_sharane_padi.pdf
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/xufefogifupejoru.pdf
    • https://cdn.shopify.com/s/files/1/0438/5538/0630/files/dedewiror.pdf
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/bilirubin_cycle.pdf
    • https://cdn.shopify.com/s/files/1/0431/4460/9943/files/lightweight_concrete_materials.pdf
    • https://cdn.shopify.com/s/files/1/0432/2253/2251/files/nested_for_loop_matlab.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf01.bin
207a220b1476c96018d928009718c2dbc113e32415ae43c810ff0d665305a6b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xBF01 5060 bytes
font_01_sfnt_off0000d010.bin
944b0fb8bcfbda1d392f137040255918d126279858ebf529be94fa26d3268a7e
pdf-font-stream PDF embedded font (sfnt) at offset 0xD010 12524 bytes
font_02_sfnt_off0000f8b5.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B5 4324 bytes