Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d240e3284c9870…

MALICIOUS

PDF

31.8 KB Authoring application: Solid Converter PDF
MD5: 3dc1a95d5373ba85c8e82e64ff5e2be2 SHA-1: 63929370c9c0f29d01b41359e65c4fa57d6a7539 SHA-256: c2d240e3284c9870b9fc5d786dfaa787774cca4fb49dd78de03166d0bd318b8c
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a phishing campaign designed to drive traffic to numerous malicious or SEO-abused sites. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and traffic generation intent.

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://www.wijdstraat.nl/uploads/1/3/0/6/130640225/tevuniwomogavivenobi.pdf
    • http://upfh.com/uploads/1/3/0/7/130739154/pikikamiw.pdf
    • http://castrovalleypainting.com/uploads/1/3/0/8/130874606/1458221.pdf
    • http://marcestrugo.com/uploads/1/3/0/6/130639583/lonoda-mobukesigara.pdf
    • http://www.lotuscoaching4kids.com/uploads/1/3/0/6/130621960/dakarom_xirujaluxuroloj_luxonexamuri_gexak.pdf
    • http://nzbriards.com/uploads/1/3/0/8/130814874/1b8f2cf93a92497.pdf
    • http://mail.hemlockcanoe.com/uploads/1/3/0/7/130775907/3419554.pdf
    • http://mta-sts.mail.souls2souls.de/uploads/1/3/0/6/130639468/safewitit.pdf
    • http://gotcertifications.com/uploads/1/3/0/7/130775723/7419262.pdf
    • http://retrocrawl.net/uploads/1/3/0/8/130814308/tamiwugopotowixipo.pdf
    • http://dellenergyconsulting.com/uploads/1/3/0/5/130539393/magoperi-kisoropofari-gujufigibope.pdf
    • http://mishyou.com/uploads/1/3/0/7/130775011/lusoxugubenuza.pdf
    • http://webdisk.gammaxiques.org/uploads/1/3/0/7/130776720/130776720.html#solving+quadratic+equations+by+factoring+puzzle+worksheet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000021bc.bin
9b833bfe5c0ee7721d6904059f7405a83973be577b31addb2bab3f13770e0444		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21BC 8588 bytes

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