Malicious PDF — malware analysis report

Static analysis result for SHA-256 fefe2c136a698b60…

MALICIOUS

PDF

46.8 KB Created: 2020-08-24 05:24:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05c3cfb9fb589b04ce6befff4258ea48 SHA-1: cd40599e2ecb794f256d78535d061c823cabc99e SHA-256: fefe2c136a698b60ce1963ca3b7f2b5b2ae2e815c031e741536ccd8394e5570c
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'Singapore michelin star hawker guide' and embeds a link that redirects to known malicious infrastructure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this redirection. Additionally, the PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger effort to distribute malicious links, with the primary redirector being ttraff.cc.

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.cc/pify?keyword=singapore+michelin+star+hawker+guide
    • http://files.ellismedlibrary.org/uploads/1/3/1/8/131856398/nijenap.pdf
    • http://files.tastefuloccasionscatering.com/uploads/1/3/0/7/130738806/zegumorobatope.pdf
    • http://tonow.oldschoolsailing.com/uploads/1/3/1/6/131606295/zonijitekojo_xasonitamet_gilapuzenilekev_muraf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6620/4066/files/wibigunatozokadisapukok.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/15138334831.pdf
    • https://cdn.shopify.com/s/files/1/0431/7118/4794/files/90810211823.pdf
    • https://cdn.shopify.com/s/files/1/0466/7991/6709/files/occupational_therapy_rheumatoid_arthritis_nice_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/xazosewinilokowokibigexi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4843/4840/files/deponiso.pdf
    • https://cdn.shopify.com/s/files/1/0432/5959/2864/files/63669028821.pdf
    • https://cdn.shopify.com/s/files/1/0431/4107/1016/files/debodurexowozimojutobo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/31142112156.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006078.bin
140ab87d6e8dca1d36d09656996c838c891690a5b9d14a7008dec84a19c2e9af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6078 5748 bytes
font_01_sfnt_off000073e6.bin
14c1c10ece59c669cdb62f091ba5b3cfacd81b1e23e48970df2938948c115b43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73E6 10412 bytes
font_02_sfnt_off000097c2.bin
7ab81ce3d92a9ec80982bbbf7df4378fdf9290867a146be245f32411f9d17586		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97C2 16616 bytes

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