Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bf348c8f4359646…

MALICIOUS

PDF

66.4 KB Created: 2021-02-16 07:05:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b04ab9415183c760e0917bc42237d0ac SHA-1: b4a03605e3c000f43390d31a6c128899e0509093 SHA-256: 2bf348c8f435964610f5454fa0a27b24828ce9dabd2b3fddcafb8f5831343530
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/123?utm_term=abu+garcia+silver+max+fishing+reel PDF link annotation
    • http://ita-women.space/44564688073bixxu.pdfIn PDF document text
    • http://afracheat7.xyz/zuxelazamatazafovugelesel3x1vm.pdfIn PDF document text
    • http://vk-settings-change.online/awm_pubg_soundhoblt.pdfIn PDF document text
    • http://fredo.run/liru_wolf_girl_with_youz5dzs.pdfIn PDF document text
    • http://zatoboyvibor.fun/black_panther_mask_templateyafyd.pdfIn PDF document text
    • http://forsage.pw/transformers_attinger_deathhhzyu.pdfIn PDF document text
    • http://ruvejufagofo.22web.org/zafetufem.pdfIn PDF document text
    • http://huseyincanx.com/19461758238q96jb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zepenolewiri.epizy.com/27623268308.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/aastha_gill_images.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/comparative_balance_sheet_vertical_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/acting_resume_child_template.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/merabilanalepikus.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/pagozofumusopedixorex.pdfIn PDF document text
    • http://vajekalisafemun.rf.gd/lalanezalutafisulorara.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_off0000c61b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC61B 5552 bytes
SHA-256: cf8f296b62c2e6bf9a10b82220b2fb8fb43a56003f31314fdf6269bc9f25faf4
font_01_sfnt_off0000d8e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E8 10008 bytes
SHA-256: 7983dfe94efa175dd00d67e6553ed2a9a2ade5c631782bdb317ad96660b4e8bd