Malicious PDF — malware analysis report

Static analysis result for SHA-256 16b190eda4bd0c95…

MALICIOUS

PDF

67.1 KB Created: 2021-01-21 00:43:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 7cea4ec434c74de83051f654cca9e72a SHA-1: 815c517a134a0eda7ece7fcbba969d2401c70d98 SHA-256: 16b190eda4bd0c95e04bf3c638cdbe5cfd98f5d3c2ba4d55589397c8d2938d53
136 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
  • 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://traffnew.ru/123?utm_term=nerf+minigun+mega PDF link annotation
    • https://site-1177113.mozfiles.com/files/1177113/old_nokia_tune_ringtone_mp3_free_download.pdfIn PDF document text
    • http://sigonalen.22web.org/accounting_principles_volume_1_8th_edition.pdfIn PDF document text
    • http://batezelokev.iblogger.org/lixugowadot.pdfIn PDF document text
    • https://site-1174356.mozfiles.com/files/1174356/raft_simulator_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/carpenter_s_blocks_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/jotogorurekuro/tm_symbol_android_keyboard.pdfIn PDF document text
    • http://fuvituze.epizy.com/99_names_of_allah_list_bangla.pdfIn PDF document text
    • http://gumigojozupe.epizy.com/jagipagapovejativobij.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/raees_movie_filmyzilla.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/zexupezevijenetepeli.pdfIn PDF document text
    • http://xonelamurojili.rf.gd/66341874198.pdfIn PDF document text
    • http://texazufuvo.rf.gd/tosiwanukisubot.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/abas-_3_scoring.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/cinema_hd_v2_android_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/bootstrap_3_datepicker_format_date.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/mepodizagit.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/aidl_simple_example_in_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/nubejepitiguw.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_off0000cce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCE6 4844 bytes
SHA-256: 134d4b60b2d1dab6c58f676ddb46f5117732a3988797a6a80a0457aa9ff6547f
font_01_sfnt_off0000dd53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD53 10068 bytes
SHA-256: aaa0b6272fb335bc6afad7acc5fceae8165a7666f04e721437a3be83189570eb