Malicious PDF — malware analysis report

Static analysis result for SHA-256 59e8afa567f52fc2…

MALICIOUS

PDF

42.9 KB Created: 2020-08-02 09:02:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f6c463653888eae83c75bff59fa223e7 SHA-1: 871428a27f36e848d23b268b40723c3459e727c6 SHA-256: 59e8afa567f52fc22f0f8feb33f6359573c50c110a798579ccf3cfbb2c8a1208
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on 'cdn.shopify.com'. The document body, though partially corrupted, contains the malicious URL and text suggesting a lure for an 'Instagram unfollow app', aligning with the urgency lure heuristic.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/pify?keyword=instagram+unfollow+app
    • http://files.princeopeace.org/uploads/1/3/0/8/130874204/8d2a6c.pdf
    • http://files.lilavolkas.com/uploads/1/3/0/7/130776611/1220211.pdf
    • http://files.brantfordtrackandfieldclub.com/uploads/1/3/1/4/131407152/4553063.pdf
    • http://files.happytailsindobson.com/uploads/1/3/1/4/131453252/6665279.pdf
    • http://files.thedoorsandiego.com/uploads/1/3/1/8/131856276/6d1fc4b56.pdf
    • https://cdn.shopify.com/s/files/1/0437/6631/7205/files/kafugawanaxogilekikof.pdf
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/7680413892.pdf
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/poxukagez.pdf
    • https://cdn.shopify.com/s/files/1/0432/3010/1668/files/88387204091.pdf
    • https://cdn.shopify.com/s/files/1/0430/4135/7973/files/97477971718.pdf
    • https://cdn.shopify.com/s/files/1/0431/6810/4610/files/87162877621.pdf
    • https://cdn.shopify.com/s/files/1/0437/5147/3303/files/55410505174.pdf
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/21890459467.pdf
    • https://cdn.shopify.com/s/files/1/0434/9621/0594/files/90340943586.pdf
    • https://cdn.shopify.com/s/files/1/0429/6628/6490/files/gixedogadob.pdf
    • https://cdn.shopify.com/s/files/1/0431/9287/7217/files/37607848951.pdf
    • https://cdn.shopify.com/s/files/1/0430/2811/9706/files/kevaxo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9405/6861/files/pariwuzatudusonis.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_off000068a1.bin
72fc8463b6caf930b3ed19642551395c363c9d736889491f5d75c31f72358cd7
pdf-font-stream PDF embedded font (sfnt) at offset 0x68A1 5248 bytes
font_01_sfnt_off00007a7e.bin
4ce0280d17264ace21bd54b5d7da1fa3a6bfa8264c1512c9167581c6f763cfd7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7E 10856 bytes