Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a2e221498f2f233…

MALICIOUS

PDF

36.3 KB Authoring application: LibreOffice First seen: 2020-09-24
MD5: 6eb2b8d461216affb8f954b10ad42fc2 SHA-1: ba18622773b5e36400deee349153574db5960eb1 SHA-256: 7a2e221498f2f233e57e640bbcee8cce57b3bdfb9426a2bfca93e669e10aa5fb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass of external links to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, contains URLs that are likely part of this link farm, suggesting a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://qijidaoyin.net/uploads/1/3/0/5/130539046/lemawazu-ronobubazojiju-denejezi-rigejo.pdf In PDF document text
    • http://bluewingstudio.com/uploads/1/3/0/5/130539049/lurekilisem.pdfIn PDF document text
    • http://milablooms.com/uploads/1/3/0/7/130740141/676364.pdfIn PDF document text
    • http://axissyllabus.net/uploads/1/3/0/6/130621502/117926.pdfIn PDF document text
    • http://sk8roxy.com/uploads/1/3/0/5/130588951/sopexatugodo.pdfIn PDF document text
    • http://boisebrunchbabes.com/uploads/1/3/0/5/130589189/695735.pdfIn PDF document text
    • http://mrpsmathclass.com/uploads/1/3/0/6/130639797/luzinojegorovu.pdfIn PDF document text
    • http://skmmglobal.us/uploads/1/3/0/7/130739648/mafasodanira.pdfIn PDF document text
    • http://ascinsurescaffoldtoolbox.com/uploads/1/3/0/3/130323703/xozakezuna_fojijojad.pdfIn PDF document text
    • http://orthopro.co.nz/uploads/1/3/0/5/130538839/261976.pdfIn PDF document text
    • http://pudgery.com/uploads/1/3/0/5/130550697/bebiritar.pdfIn PDF document text
    • http://beatricemain.com/uploads/1/3/0/5/130540182/4616842.pdfIn PDF document text
    • http://rpluscreativesmy.com/uploads/1/3/0/2/130289748/zawekiza_vizowefivirat_pitubeximabuke_nemosoma.pdfIn PDF document text
    • http://gwe-design.com/uploads/1/3/0/4/130477228/e0636c6c7f.pdfIn PDF document text
    • http://cbdcreamonline.com/uploads/1/3/0/4/130478307/motalesipowi_dukosewupofor_susogokilob_sunezaga.pdfIn PDF document text
    • http://marylandvcoc.com/uploads/1/3/0/6/130620268/logodidovepasox.pdfIn PDF document text
    • http://propertymanagerfinder.com/uploads/1/3/0/4/130483911/jujofupasobalobag.pdfIn PDF document text
    • http://trentriverdesigns.com/uploads/1/3/0/4/130477036/130477036.html#convert+pdf+to+ms+excel+free+onlineIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D5 7912 bytes
SHA-256: 56aa575fe888100ba8c179461b0f8b35590ffb1c34852888b11d466eeba73ef6