Malicious PDF — malware analysis report

Static analysis result for SHA-256 a151b843d5fb05d6…

MALICIOUS

PDF

68.3 KB Authoring application: Karbon First seen: 2020-09-24
MD5: 5420a04600f1733bac272b3aaf3c3186 SHA-1: 929d07b53eac53d09d6a2b3b8c6356b68861d4b1 SHA-256: a151b843d5fb05d6c0698a34238e0fcb1850d642b0dc2cd295f51d85c63cb80d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is commonly used to distribute phishing content or malware. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious classification. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://autismstorificview.com/uploads/1/3/0/7/130776239/jizisuxuj-belovixe.pdf In PDF document text
    • http://personalinjurylawyer-calgary.com/uploads/1/3/0/6/130639551/kawijejadozeriji.pdfIn PDF document text
    • http://azguide.net/uploads/1/3/0/7/130740211/jimofoteda-rapidenido.pdfIn PDF document text
    • http://www.reefercorals.com/uploads/1/3/0/6/130605443/gurad.pdfIn PDF document text
    • http://adelmoalves.com/uploads/1/3/0/3/130379098/a413322b95ffd0.pdfIn PDF document text
    • http://consortiaservices.com/uploads/1/3/0/5/130588269/8394c14a7.pdfIn PDF document text
    • http://www.gorgeflowyoga.com/uploads/1/3/0/8/130873830/renurowagu.pdfIn PDF document text
    • http://www.mcatcoursereviews.com/uploads/1/3/0/6/130621278/topefimarakesap.pdfIn PDF document text
    • http://www.foreversummer.ca/uploads/1/3/0/7/130739592/daviliz-wizefup.pdfIn PDF document text
    • http://quantumbeveragegroup.com/uploads/1/3/0/6/130639231/bawawuxuririk-sumuvatorag-xifakejewa.pdfIn PDF document text
    • http://midtrans.online/uploads/1/3/0/7/130739596/c16ff650b4d83.pdfIn PDF document text
    • http://sitesillustrated.com/uploads/1/3/0/7/130775436/tarimovodofezub_poxodaf_xenosuveno.pdfIn PDF document text
    • http://killasports.com/uploads/1/3/0/6/130604433/7974916.pdfIn PDF document text
    • http://beingself-centered.com/uploads/1/3/0/6/130639591/benazi_vagaviwafade.pdfIn PDF document text
    • http://goonmud.org/uploads/1/3/0/4/130476062/muwodirawefefudet.pdfIn PDF document text
    • http://buyglycoflex.com/uploads/1/3/0/7/130776056/1129641.pdfIn PDF document text
    • http://pioneerwinecolorado.com/uploads/1/3/0/6/130605422/f22f48a9b8.pdfIn PDF document text
    • http://alexdibranco.org/uploads/1/3/0/4/130435729/3449999.pdfIn PDF document text
    • http://sgchoir.nl/uploads/1/3/0/3/130323892/fovuzivefipox.pdfIn PDF document text
    • http://elgincoc.org/uploads/1/3/0/8/130874634/fuvawamisali_japefewexivet.pdfIn PDF document text
    • http://www.survey.cjsteele.com/uploads/1/3/0/2/130273842/a0fcf29d7.pdfIn PDF document text
    • http://prceducation.net/uploads/1/3/0/5/130541846/kobuxexabinatu.pdfIn PDF document text
    • http://rogueschooling.net/uploads/1/3/0/4/130489253/jusatelezaperesi.pdfIn PDF document text
    • http://www.mod13culminatingprojecthss.com/uploads/1/3/0/9/130969331/9384425.pdfIn PDF document text
    • http://vacationsofdiscovery.voyagerwebsites.com/uploads/1/3/0/5/130545360/9822298.pdfIn PDF document text
    • http://webmail.jacquelineclewis.com/uploads/1/3/0/8/130873955/130873955.html#aflatoxin+in+corn+productionIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1884 9420 bytes
SHA-256: 9d1815e9a2e25e5e0cad1d5d1c20a57fcac826fa95ff4faff988e830a42ee627
font_01_sfnt_off0000d060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD060 2860 bytes
SHA-256: 4d9ec2aec8f1ca6bebe1b56492fd55a77bba3a6e98efb76508c1b835d4eb9912

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