Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd752343accb1e8b…

MALICIOUS

PDF

49.9 KB Created: 2020-08-30 23:06:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4260db9fbb55b6741f75858db5ed9db7 SHA-1: f5da5a605311655ecd9651189fbc277064706f63 SHA-256: fd752343accb1e8b4ae130cc52eedc83b6f904d0719679dd5f3df9ed8acc115b
120 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.cc/wix?keyword=everquest+necro+leveling+guide'. This URL is embedded within the document body and is likely intended to lure the user to a malicious site. The document also contains a large number of external PDF links, many hosted on static.usrfiles.com, suggesting a link farm or SEO poisoning tactic to improve search engine ranking for the lure 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.cc/wix?keyword=everquest+necro+leveling+guide
    • https://static.usrfiles.com/ugd/b8c837_90469ef81c544b36abbc2934d9dec548.pdf
    • https://static.usrfiles.com/ugd/b8c837_c808b6b09c1e45648afa93b61cb4a8ea.pdf
    • https://static.usrfiles.com/ugd/b8c837_24aea0c63e874923a51c64b47926ef78.pdf
    • https://static.usrfiles.com/ugd/be19e1_d2f67693328d4e0491d480c46bb79937.pdf
    • https://static.usrfiles.com/ugd/c068f8_e1d7ca0439e743139f3050e2a31806b5.pdf
    • https://cdn.shopify.com/s/files/1/0438/8611/7032/files/gravestone_scepter_vanilla.pdf
    • https://cdn.shopify.com/s/files/1/0431/7360/9636/files/retail_price_calculator_java.pdf
    • https://cdn.shopify.com/s/files/1/0431/3278/0701/files/klein_organic_chemistry_2nd_edition_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0449/4236/0744/files/what_is_reliability_centered_maintenance.pdf
    • https://static.usrfiles.com/ugd/b8c837_01f2fd2444b2434586ba0b0969919ead.pdf
    • https://static.usrfiles.com/ugd/e33828_e4e0f14c3a6c4d5c986825fecf0b4212.pdf
    • https://static.usrfiles.com/ugd/67f5f7_107564ba3f9e4b43b66b827087d74838.pdf
    • https://static.usrfiles.com/ugd/b8c837_aba1fba1bc5040efb1d4dfdd006c0330.pdf
    • https://cdn.shopify.com/s/files/1/0431/0636/9703/files/prizerebel_hack_points_generator_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/5670/0319/files/brock_lesnar_workout_plan.pdf
    • https://cdn.shopify.com/s/files/1/0438/4079/8885/files/fegosiwojaguwabulapema.pdf
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/52242188268.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_off00006fad.bin
0e424e3082c2baf053e82bb369ae40061a8c1f3a9c482832cd6a5bb3c5f5e481
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAD 5040 bytes
font_01_sfnt_off000080e1.bin
637fce2e3bb0895c29ecc0ab5c521810dfe0fb81849bfd7a192f3169f7f602ec
pdf-font-stream PDF embedded font (sfnt) at offset 0x80E1 10700 bytes
font_02_sfnt_off0000a576.bin
c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA576 16092 bytes