Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76113af920d0e3f…

MALICIOUS

PDF

76.1 KB Created: 2021-02-22 15:57:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8ab550f7bf6fb5b22a8a9d17ac1f026c SHA-1: c189795db2d8807b2400688ecd97f75fec49c7e6 SHA-256: b76113af920d0e3f85c8217ff9bc777227f9b795661083faf85b9406872f3344
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://druttle.ru/strik?utm_term=what+is+an+average+score+for+an+emotional+intelligence+test PDF link annotation
    • http://swiss-family.space/vimesaradavg9am.pdfIn PDF document text
    • https://zemabata.weebly.com/uploads/1/3/4/6/134677216/pabazib.pdfIn PDF document text
    • http://mazonenebu.22web.org/fedebatudeze.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/sumonawitanifigiwedozlp9n9.pdfIn PDF document text
    • http://stylecurtains.com/how_to_get_bigger_thighs_without_weightsmg97b.pdfIn PDF document text
    • https://xemegejimeje.weebly.com/uploads/1/3/1/6/131636808/5513752.pdfIn PDF document text
    • https://nimaxinamupun.weebly.com/uploads/1/3/4/6/134635612/59c264c08e44ef2.pdfIn PDF document text
    • http://tdsevsvet.ru/how_much_does_a_2020_porsche_macan_costoe16y.pdfIn PDF document text
    • https://bofuvuwowu.weebly.com/uploads/1/3/1/8/131856225/sokavurasulun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gedijusopekud.epizy.com/don_williams_i_believe_in_you.pdfIn PDF document text
    • http://koraxirimaxodet.epizy.com/66710334776.pdfIn PDF document text
    • http://bilozepe.rf.gd/50035477962.pdfIn PDF document text
    • http://kibululugavi.epizy.com/lapiwimadanazo.pdfIn PDF document text
    • http://kalogoraretupo.epizy.com/muzavonojubux.pdfIn PDF document text
    • http://jokolonu.rf.gd/cvs_health_automatic_wrist_blood_pressure_monitor_instructions.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB35 5368 bytes
SHA-256: a68cdc69122d179101b68bf57c4360adde82cf342d134bdb2fbde368c9c7278f
font_01_sfnt_off0000fd65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD65 11112 bytes
SHA-256: 1ca8626212c64eecd0f3fe09b5172c42053e2051be39c0d40ff9c08a81f87ec8