Malicious PDF — malware analysis report

Static analysis result for SHA-256 b31b35cdd3ec8c86…

MALICIOUS

PDF

39.7 KB Created: 2020-08-11 13:11:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3debd4db9ca9ab0a328494073fc6814e SHA-1: 5c35495dd62d4548215cc0af2a9ffc85075b5390 SHA-256: b31b35cdd3ec8c860a9b355b5f4a61e980e8697d09ec837f6386ae7451a78a27
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, https://ttraff.cc/pify?keyword=blessing+and+honor+victory+worship+chords+pdf, is identified as a malicious redirector. This suggests the document is designed to lure users to malicious infrastructure by disguising its intent with a seemingly harmless topic.

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/pify?keyword=blessing+and+honor+victory+worship+chords+pdf
    • http://files.my911alerts.com/uploads/1/3/2/6/132682862/f7e28353d4d250c.pdf
    • http://vafilu.tobiascwong.com/uploads/1/3/2/8/132814930/sogowunuko-pedarelokuwi.pdf
    • http://files.knowlebadminton.com/uploads/1/3/1/0/131070792/jajujuwikirep-lozelofobomiva.pdf
    • http://files.jlnjspac.org/uploads/1/3/0/8/130874634/2989030.pdf
    • http://files.kimberlydark.com/uploads/1/3/1/3/131398059/suxuzaju_mexexataza_zuzalip.pdf
    • https://cdn.shopify.com/s/files/1/0440/5788/6870/files/26206005512.pdf
    • https://cdn.shopify.com/s/files/1/0431/0863/0681/files/fojuwofumubogokebuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/3314/1149/files/8738493279.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99744184538.pdf
    • https://cdn.shopify.com/s/files/1/0429/7195/5351/files/casio_g_shock_5121_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gekisemegudifusoledo.pdf
    • https://cdn.shopify.com/s/files/1/0435/9448/1821/files/53467026351.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duliwoledemovaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/7854/8630/files/36444693599.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/89411853135.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_off00004f9a.bin
1e52390a0fd303994145c04d57a352b66727f8fea0cb222a3ba0dda4d1e2584b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F9A 5720 bytes
font_01_sfnt_off00006327.bin
6cbe971eb9f4b474cf21e7324030e1e09f4154fff69a2b21bb7d527d48fb4843		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6327 14308 bytes

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