Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e929f1c3d04535c…

MALICIOUS

PDF

36.1 KB Created: 2020-09-03 16:43:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6718b9267de3b06438118999041a94f9 SHA-1: eba77a4665a393ea67fba2a49c8243e148ea4d3d SHA-256: 4e929f1c3d04535cd7209c488cb5d109aa8be8fc1c63b68de40771bd453733d0
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=khadya+suraksha+form+rajasthan'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the malicious URL and hints at urgency, suggesting a phishing or scam attempt to trick the user into clicking the link.

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.club/wix?keyword=khadya+suraksha+form+rajasthan
    • https://cdn.shopify.com/s/files/1/0437/7496/7965/files/enlace_polar_y_no_polar.pdf
    • https://cdn.shopify.com/s/files/1/0435/2845/4298/files/zigur.pdf
    • https://cdn.shopify.com/s/files/1/0445/9554/4228/files/server_administrator_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0444/4202/6150/files/selection_sort_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/22021058089.pdf
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/68402192803.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/87349351290.pdf
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/6496966592.pdf
    • https://cdn.shopify.com/s/files/1/0434/3680/2204/files/govebawujofotudalosetug.pdf
    • https://static.usrfiles.com/ugd/f80014_319a64c84aad42d8bff3b4c58f87aad4.pdf
    • https://static.usrfiles.com/ugd/8da65f_5138b5047ab34846b3530a20b4d61ab0.pdf
    • https://static.usrfiles.com/ugd/5438e3_acacaf5259ea45f18c24b8a20e41cf95.pdf
    • https://static.usrfiles.com/ugd/fdee49_bfbc02eb0332443680559539340e9aa6.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_off0000503f.bin
3883484ef4b947f053582ad597e9dc81db47c6ed3902b3bd454a302784b53a97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x503F 5328 bytes
font_01_sfnt_off00006240.bin
5b5e12222f5895c3962f50ad88da7c0dd96c4f40c421f1406a5dd64239bc66c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6240 9888 bytes

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