Malicious PDF — malware analysis report

Static analysis result for SHA-256 f78e8be9b2f6e2e7…

MALICIOUS

PDF

56.5 KB Created: 2020-11-08 21:58:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 96c51b14f4cc748816f2d02c66cf8721 SHA-1: ce7aae72a9176f08bb7d436461ca60b9993d875f SHA-256: f78e8be9b2f6e2e7e4efcd756a41f31c833cddda7136aea8b458d9e1c765265c
74 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffset.ru/aws?keyword=graphic+design+assignments PDF link annotation
    • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/wokezito.pdfIn PDF document text
    • https://tetagusupawuwag.weebly.com/uploads/1/3/4/5/134586179/kepejelagazagiwofe.pdfIn PDF document text
    • https://kexinebig.weebly.com/uploads/1/3/4/3/134338338/zosaf.pdfIn PDF document text
    • https://wepebagelokej.weebly.com/uploads/1/3/4/5/134583559/526d8fa33ab8a6f.pdfIn PDF document text
    • https://morekifozolil.weebly.com/uploads/1/3/4/3/134332894/2108456.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://wupegol.files.wordpress.com/2020/11/73039052987.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/ponderosa_high_school_bell_schedule.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/moana_streaming_free_2019.pdfIn PDF document text
    • https://xoxajokar.files.wordpress.com/2020/11/meownime_danmachi_season_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6202397e-87cf-48f1-9819-716efed924f6/93250014413.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/kararemo.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_off00009dcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DCD 5484 bytes
SHA-256: f3b60a531dd73f99942889249b2a79761639a74f68d48243f7cc40c754f8d9e1
font_01_sfnt_off0000b04c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB04C 10896 bytes
SHA-256: 640fc4b1093ed4df2d05a7de39afb1bfdb41fcf111bc543bfe1b0b2c3396ede2