Malicious PDF — malware analysis report

Static analysis result for SHA-256 2097a204281d6a1a…

MALICIOUS

PDF

43.0 KB Authoring application: QPDF
MD5: 3d6790cc72fbfe055368fe065af871a5 SHA-1: e0978601cf1fad6546bd4289a282297472c13610 SHA-256: 2097a204281d6a1a68d3f94249cdd4af4cd1748fbe3fed9c39793f085170f951
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing 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 ClamAV detection and the PDF_SEO_LINK_FARM heuristic strongly suggest a malicious intent, likely related to phishing or malware distribution through these linked documents.

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://kaiser-roll-studios.com/uploads/1/3/0/2/130273915/206600.pdf
    • http://delucaconsulting.se/uploads/1/3/0/7/130775639/2005118.pdf
    • http://unitedaustin.com/uploads/1/3/0/7/130776499/wosafunomaziri.pdf
    • http://sinfulrobot.com/uploads/1/3/0/5/130545097/zalinusuzikejor.pdf
    • http://globalstarpartners.com/uploads/1/3/0/6/130620843/6033941.pdf
    • http://kraimgroup.com/uploads/1/3/0/7/130738846/209fd.pdf
    • http://papiramirez.com/uploads/1/3/0/7/130776228/dawure_kimobitotupoxi.pdf
    • http://welcometothehub.co/uploads/1/3/0/7/130776366/jowavuvuguratarasab.pdf
    • http://theoccasionalblog.com/uploads/1/3/0/7/130776252/4876939.pdf
    • http://openmasajes.net/uploads/1/3/0/5/130540814/f9f02fbc3b0.pdf
    • http://niumanatreecare.com/uploads/1/3/0/8/130874489/gomoxonufidadik_vajurogabawesa.pdf
    • http://elliescrayoncollective.com/uploads/1/3/0/7/130740262/zumujaxuniso.pdf
    • http://masstechlaw.net/uploads/1/3/0/6/130639533/nirawetevowi.pdf
    • http://rotaract4100.org/uploads/1/3/0/3/130313422/1387465.pdf
    • http://wellstonecap.com/uploads/1/3/0/7/130776788/6539508.pdf
    • http://tjrothconstruction.com/uploads/1/3/0/5/130539092/c8992a70a.pdf
    • http://chincoganmowers.com/uploads/1/3/0/8/130814728/8778508.pdf
    • http://andrelle.com/uploads/1/3/0/3/130313453/3543080.pdf
    • http://jezetta.com/uploads/1/3/0/6/130605447/1c656f39a28bc2.pdf
    • http://arthritisgarden.com/uploads/1/3/0/7/130739286/1745805.pdf
    • http://miguelsanostory.com/uploads/1/3/0/5/130550774/e20647250206b.pdf
    • http://groovymoney.com/uploads/1/3/0/6/130620668/futomujeneb_pimefodivetover_wosava.pdf
    • http://vipgrouptravelseminaratsea.voyagerwebsites.com/uploads/1/3/0/8/130874309/130874309.html#research+poster+design+ppt
    • http://tjrothconstruction.com/uploads/1/3/0/5/130539092/c8992

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046f2.bin
6f00b8a1ad35190235cb2b87c332395d8853110210fd12fb6e83140397f63aad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46F2 7944 bytes

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