Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa5f90372151694…

MALICIOUS

PDF

44.2 KB Created: 2020-03-08 08:54:32 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 48046303ebc80d3d5934830293e79d86 SHA-1: 9d92eb76fca5e943cd25f7a372a4e629b8d37794 SHA-256: faa5f9037215169459f2b4469c2991281344673567e06c9b92313e32252db5d4
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link

This PDF document functions as a link farm, presenting a lure related to 'introduction to computer science books free download pdf'. It contains numerous embedded URLs pointing to other PDF files hosted on various domains. The primary intent appears to be directing users to a large number of external resources, likely for SEO manipulation or to distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://sta-66-99-58-213.ladse.org/uploads/1/3/1/0/131070712/131070712.html#introduction+to+computer+science+books+free+download+pdf PDF link annotation
    • http://www.candykoalaplushieemporium.com/uploads/1/3/0/6/130640104/932716.pdfIn PDF document text
    • http://paulrealtyinvestments.com/uploads/1/3/0/8/130874289/eaaa5b.pdfIn PDF document text
    • http://billelenbark.net/uploads/1/3/0/2/130270990/xuzuxewerukesewugale.pdfIn PDF document text
    • http://value-scape.com/uploads/1/3/0/8/130814085/nufaramo-bopusadam-jowukovelurunip.pdfIn PDF document text
    • http://energy-beatz.com/uploads/1/3/0/7/130740087/9a145ea318.pdfIn PDF document text
    • http://aaagospelminister.com/uploads/1/3/0/4/130476652/bomojuxori.pdfIn PDF document text
    • http://srec-watson.com/uploads/1/3/0/4/130490461/2057722.pdfIn PDF document text
    • http://oakandolivejewelry.com/uploads/1/3/0/4/130483956/bosugiv-ginuz.pdfIn PDF document text
    • http://windowpeel.com/uploads/1/3/0/5/130551523/59c10528728.pdfIn PDF document text
    • http://cordiaaladvies.nl/uploads/1/3/0/4/130483924/bilazubilet.pdfIn PDF document text
    • http://chuysmex.com/uploads/1/3/0/6/130620852/4434409.pdfIn PDF document text
    • http://worldoftrading.net/uploads/1/3/0/5/130589238/pireritowazev_jinepilovakigim_modifowado.pdfIn PDF document text
    • http://wldrentals.com/uploads/1/3/0/2/130271139/fuwamex-kubivonu-tagotuzaberez.pdfIn PDF document text
    • http://marijuanacultivationconsultants.com/uploads/1/3/0/2/130289571/2475395.pdfIn PDF document text
    • http://ambercove27waterfalls.com/uploads/1/3/0/5/130551192/dajikipigadazosi.pdfIn PDF document text
    • http://hostmaster.amomentonthelips.co.uk/uploads/1/3/0/7/130775258/biludodukekagal.pdfIn PDF document text
    • http://www.barbaravanwijnendaele.com/uploads/1/3/0/7/130775977/sevira.pdfIn PDF document text
    • http://homeandnursery.com/uploads/1/3/0/3/130379114/98c26c4817d.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
🗂 Part of campaign: aaagospelminister.com 3 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000821f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x821F 8500 bytes
SHA-256: 555e042ba678efc2e4712b62d7e4f582eccbfc55b9a920934a6757d3f8a85709