Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf2b8695514b3c4a…

MALICIOUS

PDF

39.1 KB Authoring application: PDFBox
MD5: df0ae2b2c2d29bddce017946774ff313 SHA-1: 425d06e43c417f9f64764ed53f9be48f1998d68e SHA-256: bf2b8695514b3c4a4874d9c2cb687f7f14a72d4cc3f88e5cbf6a31b1fec9a0a0
150 Risk Score

Malware Insights

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

The PDF was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0 and a machine learning classifier with high confidence. The heuristic PDF_SEO_LINK_FARM indicates the presence of numerous external links, suggesting a phishing or traffic redirection scheme. The embedded links likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://fri.center/uploads/1/3/0/3/130379435/xexawevepuxut.pdf
    • http://noraartstudio.com/uploads/1/3/0/2/130272557/8cc204d7fd38b.pdf
    • http://counterboycott.org/uploads/1/3/0/5/130542968/pibobutu_sasosobov_sinamoni.pdf
    • http://www.seuratechnologies.net/uploads/1/3/0/6/130604767/b8e72b714.pdf
    • http://bshk.hklss.hk/uploads/1/3/0/6/130621455/futebofowepi.pdf
    • http://newworldhousemedia.net/uploads/1/3/0/5/130543467/8b46c76ea4.pdf
    • http://scbjules.com/uploads/1/3/0/8/130874046/1294933.pdf
    • http://mlmmarketinglab.com/uploads/1/3/0/7/130775400/3e267e813ad81cc.pdf
    • http://www.drdivashairextensions.com/uploads/1/3/0/2/130271030/zekanozarovivokerizo.pdf
    • http://www.alexayeames.com/uploads/1/3/0/8/130814241/9986698.pdf
    • http://basketballtrainingclub.com/uploads/1/3/0/2/130289427/kofovip-jomasukefos-jekemovulopenox.pdf
    • http://stephenottolmft.com/uploads/1/3/0/3/130379368/4313181.pdf
    • http://www.santanamavericksbarandgrill.com/uploads/1/3/0/7/130776564/mopakis_wipebidi_widano.pdf
    • http://namedtrust.com/uploads/1/3/0/3/130323106/44c9af5ffab8.pdf
    • http://sensuoustaste.com/uploads/1/3/0/7/130739223/8754e4401.pdf
    • http://webmail.jhigh18.com/uploads/1/3/0/9/130969383/130969383.html#analytical+method+validation+interview+questions+and+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ebb.bin
b6abf5c28f9cd939849393077e38649caa3ee72f8d55b5b793ba1e2ba0a49a01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3EBB 7652 bytes

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