Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6139bb728349f9c…

MALICIOUS

PDF

37.2 KB Created: 2020-06-04 04:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4215732a1b54ad9e21f0d1df81d5699f SHA-1: 3ce4d7f7340af321fe6a46a6e7081e022e5e8021 SHA-256: d6139bb728349f9cea2bc8eddfd32a657901b3bb5a9c1bb874949109db8314c7
70 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The presence of urgency language in the document body further supports a malicious intent, likely to trick users into clicking these links. No scripts were extracted, limiting the analysis of direct payload execution.

Heuristics 4

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://temp.vvandthevoid.com/uploads/1/3/1/4/131409098/131409098.html#jewellery+making+for+beginners+courses
    • http://huronshoresfurniture.com/uploads/1/3/0/7/130739886/ritev.pdf
    • http://dcnoise.com/uploads/1/3/0/7/130739544/sibavulaxujib.pdf
    • http://shipittothem.com/uploads/1/3/1/8/131856772/bejeravedu.pdf
    • http://server65235.misscarols.com/uploads/1/3/0/6/130621359/2758341.pdf
    • http://ourbillingllc.com/uploads/1/3/0/5/130550774/8414237.pdf
    • http://autodiscover.sz-lendava.si/uploads/1/3/0/6/130639998/bamumiwobikawax-nefepelatifoxum-xepobi-padizu.pdf
    • http://webdisk.alexabc.com/uploads/1/3/1/6/131637116/xojodonofix_kedipe.pdf
    • http://scenicviewsigns.net/uploads/1/3/0/4/130477372/livosevo.pdf
    • http://temp.vvandthevoid.com/uploads/1/3/1/4/131409098/terms.html
    • http://temp.vvandthevoid.com/uploads/1/3/1/4/131409098/dmca.html
    • http://temp.vvandthevoid.com/uploads/1/3/1/4/131409098/policy.html
    • https://xiletemud.files.wordpress.com/2020/06/tixikorimezo.pdf
    • https://gepalozevod.files.wordpress.com/2020/06/25003696815.pdf
    • https://vuvaraso.files.wordpress.com/2020/06/67464980954.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006178.bin
605e712bb93a12169049632c6fbc817217c0c36ebcbcb548941dfe05eeb92c2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6178 12568 bytes

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