Malicious PDF — malware analysis report

Static analysis result for SHA-256 89c94f577bc071d4…

MALICIOUS

PDF

38.5 KB Authoring application: LibreOffice Draw First seen: 2020-09-04
MD5: a5d4acaf2a68888ebba9f1a22b631596 SHA-1: 1f7f06f2148fbd1532d7c74862b67ca0f8c5caa6 SHA-256: 89c94f577bc071d4465689d29ae6bfb5d105bce525f3c95bfc29947a557fe95b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also indicate maliciousness, specifically flagging it as phishing. While no scripts were explicitly extracted, the nature of the link farm suggests an attempt to redirect users to potentially malicious content or for SEO manipulation.

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://rishilsheth.com/uploads/1/3/0/2/130271097/gevobod.pdf In PDF document text
    • http://oakmont85south.com/uploads/1/3/0/6/130621477/7952926.pdfIn PDF document text
    • http://sylvialeehome.com/uploads/1/3/0/4/130476556/9075354.pdfIn PDF document text
    • http://sportsmed1.com/uploads/1/3/0/6/130640063/bubudo.pdfIn PDF document text
    • http://www.roster.lsbrpc.net/uploads/1/3/0/4/130488574/422480f3ec9.pdfIn PDF document text
    • http://skinnytiffy.com/uploads/1/3/0/2/130270982/pawop.pdfIn PDF document text
    • http://thewardrobesquad.com/uploads/1/3/0/6/130639565/5167720.pdfIn PDF document text
    • http://michellescreations.shop/uploads/1/3/0/7/130740496/9379000.pdfIn PDF document text
    • http://p2pphotography.org/uploads/1/3/0/5/130539046/9a4d448f68d.pdfIn PDF document text
    • http://pvqualityconstruction.com/uploads/1/3/0/4/130483318/518569.pdfIn PDF document text
    • http://professionalresultsorganizing.com/uploads/1/3/0/6/130604748/kizumu.pdfIn PDF document text
    • http://theminifigzone.com/uploads/1/3/0/6/130639551/negexuzarex.pdfIn PDF document text
    • http://adayofhope.co/uploads/1/3/0/5/130544386/zuworozusego.pdfIn PDF document text
    • http://nicholsonsbar.com/uploads/1/3/0/5/130539370/8258837.pdfIn PDF document text
    • http://thedeepgame.com/uploads/1/3/0/3/130379232/5362413.pdfIn PDF document text
    • http://bgflowermart.com/uploads/1/3/0/8/130814238/xosedaxa_vovobexisex.pdfIn PDF document text
    • http://www.readoldhandwriting.com/uploads/1/3/0/6/130603819/fosedef.pdfIn PDF document text
    • http://medicalpracticesolutions.net/uploads/1/3/0/5/130545885/zopixelupub.pdfIn PDF document text
    • http://empirepersonaltraining.com/uploads/1/3/0/5/130588857/budila-kanuvifadobemud-nezezazowur.pdfIn PDF document text
    • http://www.novelnaturesolutions.com.au/uploads/1/3/0/7/130739020/zedati.pdfIn PDF document text
    • http://nfsparts.com/uploads/1/3/0/6/130620970/sisujinukiwefofusu.pdfIn PDF document text
    • http://mninal.salon225.com/uploads/1/3/0/6/130621510/130621510.html#java+basic+tutorial+pdfIn PDF document text

Related samples 2

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_off00003545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3545 8232 bytes
SHA-256: 6cafc0addcf3d39aa017550a89b6653fb6295e16b8b102f33caac12a7a9fb22f

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