Malicious PDF — malware analysis report

Static analysis result for SHA-256 36c46dd83bb876b4…

MALICIOUS

PDF

44.7 KB Authoring application: pdf-parser First seen: 2020-09-07
MD5: c67c525afecd555570a5ed21079df91b SHA-1: f1d52dcf3bd8598a47f1283ff7b99341302c5ae6 SHA-256: 36c46dd83bb876b4c2455584641e29d15daf3684ab342947c9c0be8aa876c58f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files hosted on various domains, indicating a link farm or redirection strategy. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted from this sample, but the extensive link farm is the primary indicator of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://weddingproct.com/uploads/1/3/0/5/130543941/d9b0babe.pdf In PDF document text
    • http://adkstrings.com/uploads/1/3/0/6/130620755/26e44d.pdfIn PDF document text
    • http://chairact.com/uploads/1/3/0/5/130550970/3454051.pdfIn PDF document text
    • http://kathyfitzsimmonsart.com/uploads/1/3/0/8/130813489/disorodoju-sanirures-tufusofu.pdfIn PDF document text
    • http://madcarn.com/uploads/1/3/0/3/130379371/fumunolov.pdfIn PDF document text
    • http://branchlutheranschoolshaiti.net/uploads/1/3/0/8/130814782/desivomo.pdfIn PDF document text
    • http://bryhern.com/uploads/1/3/0/5/130590162/volikowetukagopipiwo.pdfIn PDF document text
    • http://docksideengraving.com/uploads/1/3/0/6/130604666/voxufur_mujesasexizobin_gizogawubig.pdfIn PDF document text
    • http://securitycitizen.com/uploads/1/3/0/5/130545742/fuzolipi.pdfIn PDF document text
    • http://digitalmediamarketingservice.com/uploads/1/3/0/7/130739164/sudozixipika.pdfIn PDF document text
    • http://broadsoftdirect.com/uploads/1/3/0/7/130740255/jujalewexikud.pdfIn PDF document text
    • http://neplus.co/uploads/1/3/0/7/130775063/kevosiso.pdfIn PDF document text
    • http://bottomlesshole.com/uploads/1/3/0/2/130291713/7384211.pdfIn PDF document text
    • http://colife.online/uploads/1/3/0/6/130604886/5808440.pdfIn PDF document text
    • http://sidtandkendrasaunders.com/uploads/1/3/0/6/130604824/9d1cd46f.pdfIn PDF document text
    • http://hooheno.com/uploads/1/3/0/6/130621163/giwitevi.pdfIn PDF document text
    • http://pinellasperipheralneuropathy.com/uploads/1/3/0/3/130313343/2376084.pdfIn PDF document text
    • http://nuthoppers.com/uploads/1/3/0/2/130272945/ludakapuzaza_nomunusobekon.pdfIn PDF document text
    • http://floorexpertslimited.co.uk/uploads/1/3/0/5/130539758/1212995.pdfIn PDF document text
    • http://mindforyou.org/uploads/1/3/0/6/130639448/130639448.html#vedic+astrology+chart+reading+freeIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FD7 8372 bytes
SHA-256: 0d094e84eee297925d6ba92ac7a3584606c6013f68a5da9bc77d6397c72cc66d

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