Malicious PDF — malware analysis report

Static analysis result for SHA-256 1150e4745422fbbf…

MALICIOUS

PDF

90.4 KB Created: 2021-04-08 09:05:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 070653d680a7c21c2a57991df824fa91 SHA-1: 50bae6bf385dce13cb9689175cbeb1bc20066db2 SHA-256: 1150e4745422fbbf40fbc52923ad0b0279c1a7394795338406a51388b43f798a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://jumiwimov.ru/strik?utm_term=disney+tom+sawyer+island+drowning PDF link annotation
    • http://liko-sneakers.com/66454593234nineq.pdfIn PDF document text
    • http://femonejigajape.mywebcommunity.org/83135159324.pdfIn PDF document text
    • http://lozomaneje.getenjoyment.net/finnegans_wake_lanzarote_menu.pdfIn PDF document text
    • http://wirobigi.medianewsonline.com/bafg_rckzahlung_freistellungsantrag.pdfIn PDF document text
    • http://pidijajuwupurop.medianewsonline.com/musatikuk.pdfIn PDF document text
    • http://rabota-plus.club/marvel_movies_to_watch_before_endgameg96g4.pdfIn PDF document text
    • http://unreguezff.rest/teri_meri_kahani_bodyguard_song_pagalworldxhhtp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pakakebif.rf.gd/guitar_beginner_practice_exercises.pdfIn PDF document text
    • http://zunuwovadete.epizy.com/danby_designer_mini_fridge_instruction_manual.pdfIn PDF document text
    • http://mezasijov.epizy.com/xezomenofitefubukiweweju.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/20228994202.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/jilakojesekigul.pdfIn PDF document text
    • http://zikoliduxa.atwebpages.com/41082260136.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/fojozokura.pdfIn PDF document text
    • http://futakanawus.onlinewebshop.net/40461389703.pdfIn PDF document text
    • https://681956c7-2c57-495f-b996-d04b50c745b0.filesusr.com/ugd/907d98_4637a4cc90f748ec871a1fda8de93fbe.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jugobimuraje/autonomous_robot_vehicles.pdfIn PDF document text
    • http://datufubizut.rf.gd/nodupadopuvepiza.pdfIn PDF document text
    • http://ruzuvune.epizy.com/biology_class_12_practical_book.pdfIn PDF document text
    • https://196cdf53-7a38-4f80-8f5e-3ad65c24f50e.filesusr.com/ugd/e5a593_405e5cadbc4944a3bdaa4fc6b927218f.pdf?index=trueIn PDF document text
    • https://e42ce0b3-f376-4cb5-9abe-507fdbb9570c.filesusr.com/ugd/603474_49ddbe37e2a04f4f91c48eaff94ad6f9.pdf?index=trueIn PDF document text
    • https://2eda13a9-9e0f-47dd-bbfa-a9a5028a3314.filesusr.com/ugd/61c57f_95c20656f3fd4b5c8e054376c216a8df.pdf?index=trueIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000124fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124FE 5336 bytes
SHA-256: c8c49147cfd1ff9574f94e5c13cde902ca01e92d5df539c4e5137fb42718d967
font_01_sfnt_off00013725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13725 10976 bytes
SHA-256: 7ea762e0f6859ccce62fd53769c2280bd2769aee98b1bb8ac2f692508c33e645

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