Malicious PDF — malware analysis report

Static analysis result for SHA-256 92cfb2f021cb5a10…

MALICIOUS

PDF

38.6 KB Authoring application: Serif PagePlus First seen: 2020-09-07
MD5: 1d6ee23e2ab6492dbf9cb38e52e83e6a SHA-1: 4d02687ff426a002fed87d7f24a04979568c12fa SHA-256: 92cfb2f021cb5a10ec6b166703998c05b0a3fccdd9c95dfc02b9b3bca3951c97
192 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to other PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This technique is often used for SEO manipulation or to distribute further malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. No scripts were extracted from this sample, and the document body was heavily truncated, limiting further analysis of the specific lure.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://nereoww.com/uploads/1/3/0/5/130545745/aa263b0c8da.pdf In PDF document text
    • http://wrinkleddogs.com/uploads/1/3/0/5/130589399/f46ce8af349879.pdfIn PDF document text
    • http://adavisportfolio.site/uploads/1/3/0/4/130476556/1223358.pdfIn PDF document text
    • http://saundrarandazzo.com/uploads/1/3/0/6/130603760/wufasasa.pdfIn PDF document text
    • http://rightofwaysolutionsllc.com/uploads/1/3/0/5/130590363/be7c6.pdfIn PDF document text
    • http://metallicblackrecords.com/uploads/1/3/0/7/130775009/feduvede.pdfIn PDF document text
    • http://newhorizonsllchardwoodscustomprofiles.com/uploads/1/3/0/3/130313098/5701717.pdfIn PDF document text
    • http://notarypublicincalifornia.com/uploads/1/3/0/5/130588806/watereboxilerovabok.pdfIn PDF document text
    • http://luruvewer.x-print.uz/uploads/2020/01/28/dadewereturopovatede.pdfIn PDF document text
    • http://chromationspec.com/uploads/1/3/0/5/130543035/0ea879.pdfIn PDF document text
    • http://caitescapestravel.org/uploads/1/3/0/5/130590351/javapazesive_mapibanamejami.pdfIn PDF document text
    • http://monicarayscott.com/uploads/1/3/0/7/130739974/tamok_gapara.pdfIn PDF document text
    • http://summerpodcastinstitute.com/uploads/1/3/0/6/130639221/pokamimuw.pdfIn PDF document text
    • http://vintagechicanew.com/uploads/1/3/0/3/130323632/moxig.pdfIn PDF document text
    • http://polohouston.com/uploads/1/3/0/6/130604625/fusewe_fikuwawexon_lebol_segafezezixiv.pdfIn PDF document text
    • http://stevejenkinsfitness.com/uploads/1/3/0/6/130620943/konunugupunufezukuza.pdfIn PDF document text
    • http://savelittlechalfont.weebly.com/uploads/1/3/0/3/130313289/ziwetezekum-mupepolodixoxa-maxubipu-manoxisatukise.pdfIn PDF document text
    • http://humbertooliveira.com/uploads/1/3/0/7/130776312/4102545.pdfIn PDF document text
    • http://tigerlilyyoga.com/uploads/1/3/0/6/130603900/sodejotafu.pdfIn PDF document text
    • http://cleanturndr.com/uploads/1/3/0/5/130588560/sebuzuragebunuja.pdfIn PDF document text
    • http://getmedalert.net/uploads/1/3/0/6/130620916/wekojomusiziw-pupugepuputun-vufakij-getuvadu.pdfIn PDF document text
    • http://myweeklyonline.com/uploads/1/3/0/6/130621363/jaduwilutixuwe.pdfIn PDF document text
    • http://levipark.co.nz/uploads/1/3/0/5/130543057/rivideboduw.pdfIn PDF document text
    • http://nightshadejewelry.ca/uploads/1/3/0/5/130541552/lijebukemawimor.pdfIn PDF document text
    • http://drpatty.net/uploads/1/3/0/5/130541688/130541688.html#objectives+of+environmental+accounting+pdfIn PDF document text

Related samples 6

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_off0000335a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x335A 7816 bytes
SHA-256: 567dbba1b8846da74ec1f62c9677b3637bb4b3deb5c127d1b6279c3088ff5af3

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