Malicious PDF — malware analysis report

Static analysis result for SHA-256 53204767cb5ab255…

MALICIOUS

PDF

49.8 KB Created: 2020-08-29 15:45:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f4c7cca7e92f8024a4b97d8bd9378ce SHA-1: db63ed0f2598b7722f0faa2a30721fe26d3923f0 SHA-256: 53204767cb5ab255fea537788c7d33231c00a61be68a16f8e60a072dd7236abe
160 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text fragments and URLs that align with an advance-fee scam lure, suggesting the user is prompted to click a link to claim a prize or parcel. The presence of a link farm heuristic further supports the malicious intent of directing users to external, potentially harmful, content.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=megan+maxwell+libros+sagas
    • https://static.usrfiles.com/ugd/b8c837_f29b2a0d105f4ecba9aed31dac4f6fbc.pdf
    • https://static.usrfiles.com/ugd/b8c837_b5fddef02037449ab386570039cce41f.pdf
    • https://static.usrfiles.com/ugd/b8c837_32bc560b756d44e78d1964fecf29cc72.pdf
    • https://static.usrfiles.com/ugd/b8c837_4ec54658663d40dda07b4a9180666798.pdf
    • https://static.usrfiles.com/ugd/a2e20a_4126e0bed66f404e8206f0fcb688449f.pdf
    • https://cdn.shopify.com/s/files/1/0437/3273/0017/files/philips_tv_codes.pdf
    • https://cdn.shopify.com/s/files/1/0435/7708/2019/files/buffy_and_angel_crossover_guide.pdf
    • https://static.usrfiles.com/ugd/b8c837_249d48c19f4e44d79ddff24efe81c97d.pdf
    • https://static.usrfiles.com/ugd/b8c837_7537b8bda36c4852a864750e6f42c8f7.pdf
    • https://static.usrfiles.com/ugd/b8c837_f401b53bf37341ee9dabd946801f808e.pdf
    • https://static.usrfiles.com/ugd/b8c837_31479c064bf04226a7aae5c8694e822c.pdf
    • https://static.usrfiles.com/ugd/b8c837_cd5ef37642bc4873ac13c8510e4a1d63.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/kingdom_rush_origins_hacked.pdf
    • https://cdn.shopify.com/s/files/1/0431/0269/9681/files/34461192884.pdf
    • https://cdn.shopify.com/s/files/1/0429/5678/3772/files/setting_healthy_boundaries_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/1171/8820/files/3701660698.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_off00008358.bin
beff8713d8430ec2c3ee6a598e56ae614d89e0cff5bea869b7012bea0d131bd9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8358 5308 bytes
font_01_sfnt_off0000956d.bin
329e930063ebf61f37953d0ecdf3105a800ad0030d2467d0c111a1edf75bc243
pdf-font-stream PDF embedded font (sfnt) at offset 0x956D 10444 bytes