Malicious PDF — malware analysis report

Static analysis result for SHA-256 59056694bb503979…

MALICIOUS

PDF

50.1 KB Created: 2020-09-08 03:37:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65db9f55e473bb44b15dcd574b5988f0 SHA-1: 205d4c7196ccdd292ca44dc1ae58866a2eef3573 SHA-256: 59056694bb503979620898a69dd31f007e6559a1ab420c3750f642f079f4000a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of these links, 'https://ttraff.link/wix?keyword=gold+ore+blast+furnace+guide', is flagged as a malicious redirector. The document body, though partially corrupted, contains this URL and other links that appear to be part of a SEO spam campaign designed to drive traffic to malicious sites.

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.link/wix?keyword=gold+ore+blast+furnace+guide
    • https://cdn.shopify.com/s/files/1/0437/7395/2158/files/ken_blanchard_raving_fans.pdf
    • https://cdn.shopify.com/s/files/1/0430/7746/8311/files/madison_county_florida_arrest_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/7362/5500/files/biwusomuvetubovituwud.pdf
    • https://cdn.shopify.com/s/files/1/0435/4749/2506/files/sesoxogumap.pdf
    • https://cdn.shopify.com/s/files/1/0431/4575/6833/files/renozinosepitavotojigim.pdf
    • https://static.usrfiles.com/ugd/4f92c1_8025a8d7b91b44bdb2273ade812d7af4.pdf
    • https://static.usrfiles.com/ugd/efb3f0_78324d04217544e0bdd85185698c34a9.pdf
    • https://cdn.shopify.com/s/files/1/0432/0067/6001/files/pirofiwagenafidoxisirub.pdf
    • https://cdn.shopify.com/s/files/1/0432/5687/3128/files/sijilapazugaferije.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32150460784.pdf
    • https://static.usrfiles.com/ugd/e32576_10272b58fbdf4653b9ef2a8d4d9e8fd6.pdf
    • https://static.usrfiles.com/ugd/b8c837_86b3e735cce247c796b4d063db64c3de.pdf
    • https://static.usrfiles.com/ugd/ceb2e8_5aaa9973c3474d58a80fc5644c0a3996.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_off000078db.bin
7dedbd6baeb97a8167bd0fe7855b4541d7bc744a2baad5595fc41b4be1cd3104		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78DB 5244 bytes
font_01_sfnt_off00008abe.bin
a3f346bcd98ebf683875e2413cb3c1ad22a3614698b2f933a66c43e45cdab674		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABE 10224 bytes
font_02_sfnt_off0000adcd.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADCD 4324 bytes

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