Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef7d573c347d5d1c…

MALICIOUS

PDF

118.6 KB Created: 2020-09-01 09:21:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: efbcb837c71726f208b1a4d8c4810e16 SHA-1: a62ec7928e55a0570bc4bead778292658232a019 SHA-256: ef7d573c347d5d1ca1829c4ef09ed37df396aecc2f2af674c28b401c9154772d
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains heuristics indicating it's a malicious redirector and part of a link farm, specifically designed to lure users with advance-fee scam language. The embedded URL, https://ttraff.com/pify?keyword=axa+mansard+financial+report+2016, is flagged as malicious and likely serves as the initial point of compromise. The document body, though heavily obfuscated, contains text related to a financial report, reinforcing the lure.

Heuristics 5

  • 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.
  • 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=axa+mansard+financial+report+2016
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/assistant_principal_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0118/files/93631641454.pdf
    • https://cdn.shopify.com/s/files/1/0427/7351/2359/files/28587773321.pdf
    • https://cdn.shopify.com/s/files/1/0439/8887/7470/files/45833161728.pdf
    • https://static.usrfiles.com/ugd/fe83c3_b0be93dc85ba4297be548725decf8cbe.pdf
    • https://static.usrfiles.com/ugd/2e4eb4_4d3fd385e4614f039404951bf22c002c.pdf
    • https://static.usrfiles.com/ugd/ce5d00_a8e3d4f5bcdb4e0b9c7ebe73064c77b3.pdf
    • https://static.usrfiles.com/ugd/4b7290_e6dbeaba4be940c09c95687121871b19.pdf
    • https://static.usrfiles.com/ugd/6f7357_c773028266b54a02bf49ef34e702f9f2.pdf
    • https://cdn.shopify.com/s/files/1/0431/4890/2556/files/94143462634.pdf
    • https://cdn.shopify.com/s/files/1/0432/5448/1054/files/17632500287.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/mimotodeludoja.pdf
    • https://cdn.shopify.com/s/files/1/0432/9517/8902/files/20741224188.pdf
    • https://cdn.shopify.com/s/files/1/0431/6636/7895/files/bleach_season_4_episode_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/buried_mp4_movie_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/4405/9806/files/61815157390.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_off00018bf3.bin
ccad589af023534fa5879469a97e2a8d3750bcf716cf98bf09b555084fe950f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x18BF3 5840 bytes
font_01_sfnt_off00019fca.bin
ff216ea0634a33c277c83f9657717c7aba9c3648281c6f490e24e4bec90c90a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x19FCA 14320 bytes