Malicious PDF — malware analysis report

Static analysis result for SHA-256 3542729d7cc07a19…

MALICIOUS

PDF

65.6 KB Created: 2021-02-22 18:13:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3e6961cbfc984b146c41f2e6d572710c SHA-1: f7417b60a75616f1027a626074f1c7adeae298d3 SHA-256: 3542729d7cc07a1992572bced3fd485bb3c3aaa06ee4dae01a1d5b87ac172e41
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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://bologen.ru/aws?utm_term=yellowfin+tuna+price+per+pound+2020 PDF link annotation
    • https://nigipesifagezeb.weebly.com/uploads/1/3/1/4/131411762/sogujekibak.pdfIn PDF document text
    • http://nisiwitas.22web.org/cisco_ws-_c2960x-_24td-_l_datasheet.pdfIn PDF document text
    • https://rewazute.weebly.com/uploads/1/3/4/6/134648352/nodifumevaxijarafos.pdfIn PDF document text
    • http://bigwin-1xbet.fun/alif_novel_last_episode_12tma09.pdfIn PDF document text
    • https://dogenirifalalu.weebly.com/uploads/1/3/0/7/130775866/9785026.pdfIn PDF document text
    • https://cdn.sqhk.co/fewesiwe/dijcicG/hocus_pocus_2019_tv_schedule.pdfIn PDF document text
    • http://hookup154.space/74829778437alsdn.pdfIn PDF document text
    • http://selectgetc.top/bluedio_uufo2_reviewz30cs.pdfIn PDF document text
    • https://rasafidi.weebly.com/uploads/1/3/0/7/130776861/7628776.pdfIn PDF document text
    • https://buserakufazuwus.weebly.com/uploads/1/3/4/0/134097478/af1cb6b.pdfIn PDF document text
    • https://kefejuze.weebly.com/uploads/1/3/1/6/131606268/e55e1c7cee540.pdfIn PDF document text
    • https://tunorikiwevog.weebly.com/uploads/1/3/4/0/134097136/birakujuzesu.pdfIn PDF document text
    • http://7lessons.site/575519028912alqk.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/gfeEtjc/86816668642.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wupaxine.epizy.com/luzokixolizobisesebe.pdfIn PDF document text
    • http://fasasipapuzu.rf.gd/bajrangi_song_masstamilan.pdfIn PDF document text
    • http://pelatid.epizy.com/sexape.pdfIn PDF document text
    • http://labireninofut.epizy.com/fusuwuzawotugivorezo.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_off0000c304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC304 5300 bytes
SHA-256: 519d95c0c82b11fb3a995bf626b636b20840ea8c2e3393397ff98b6522f827c1
font_01_sfnt_off0000d531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD531 10608 bytes
SHA-256: 61e7909771290b3ccdbf27f1710cc3706e0deff05b10e8a84f4c085347f941a2