Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7a5db1898454baa…

MALICIOUS

PDF

38.2 KB Authoring application: pdf-parser
MD5: c311f628c7323388e3780c9afe3064cf SHA-1: ae3db6485492d213cbe0e8c092400c00338da056 SHA-256: a7a5db1898454baa82a9e98a90470591f3137bc1d62c9170a20215886ace73c4
150 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, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, and ML classification strongly supports maliciousness. The document body contains garbled text related to PDF conversion tools, which is likely a lure.

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://smyelectricalcontractor.com/uploads/1/3/0/7/130775558/lemoganibiw_fiximalir.pdf
    • http://dravivadawn.com/uploads/1/3/0/2/130287243/zumagatojuxuxelivis.pdf
    • http://foodpolls.com/uploads/1/3/0/7/130776786/zapokumevomudememe.pdf
    • http://timings.ca/uploads/1/3/0/7/130775023/sunekegumebalawo.pdf
    • http://danboi.com/uploads/1/3/0/7/130739332/fuxajupavabozuxa.pdf
    • http://flexitdaily.com/uploads/1/3/0/8/130874328/1169491.pdf
    • http://bremenfamilymartialarts.com/uploads/1/3/0/5/130550936/savikuva.pdf
    • http://movingmountains.services/uploads/1/3/0/7/130739373/xutodede.pdf
    • http://mvcheerpoms.org/uploads/1/3/0/7/130775940/gevugafiz.pdf
    • http://www.juliesjewelryboutique.com/uploads/1/3/0/4/130489434/wilog.pdf
    • http://jglenos.net/uploads/1/3/0/5/130540592/2928735273.pdf
    • http://nyvoicedialogue.com/uploads/1/3/0/7/130740458/166980.pdf
    • http://mrsdts.com/uploads/1/3/0/3/130379561/solesetila_bisejowirad.pdf
    • http://autocockerpartsblog.com/uploads/1/3/0/2/130272440/luvogogemusujilu.pdf
    • http://barndoordecor.co/uploads/1/3/0/5/130540246/9678578.pdf
    • http://freeflightforever.net/uploads/1/3/0/6/130621850/sakufumadonebe_kagibibozogekes_bavaxogito_wiradujosadez.pdf
    • http://osteofit.ch/uploads/1/3/0/5/130546717/bevixudew.pdf
    • http://dothedavey.com/uploads/1/3/0/2/130289592/peleduro.pdf
    • http://alpinelifestylesrealestate.com/uploads/1/3/0/5/130543878/2a4059fc5.pdf
    • http://nasr-nabiha.ca/uploads/1/3/0/5/130547418/661bc01908d.pdf
    • http://nuvisionconstruction.com/uploads/1/3/0/3/130323449/95719.pdf
    • http://joshhutson.net/uploads/1/3/0/7/130738765/4f21d760d7ae7.pdf
    • http://nonnibarn.com/uploads/1/3/0/3/130324065/fufolupanigitugosa.pdf
    • http://cuttingedgepoodles.com/uploads/1/3/0/5/130590687/5659811.pdf
    • http://discoverhomestores.com/uploads/1/3/0/3/130323293/terakisiweduk.pdf
    • http://ductcleaningdc.com/uploads/1/3/0/6/130604951/130604951.html#telecharger+convertisseur+pdf+en+word+et+excel+gratuit+fran%C3%A7ais
    • http://danboi.com/uploads/1

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eba.bin
8672cd505d4f7567222aeba3a10bba6e439948a9619aebdffa0ebabd4b039cf0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBA 9540 bytes

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