Malicious PDF — malware analysis report

Static analysis result for SHA-256 63fe9deab63f0cbd…

MALICIOUS

PDF

77.1 KB Created: 2021-04-04 17:53:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 18f71f338ce2cad77d81513b31ede00d SHA-1: 5960b8496a3e4e3b3927baeea54d20352cb7cabe SHA-256: 63fe9deab63f0cbd2820eb939fec0cbc2ee145179e6fa8f165958e5dc9ed9072
126 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

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
  • 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://mezovuduw.ru/strik?utm_term=how+much+is+a+millermatic+130+worth PDF link annotation
    • http://kuxalowakanuxed.iblogger.org/33957442846.pdfIn PDF document text
    • https://cdn.sqhk.co/tufiroxova/Bhgdhbo/lego_legacy_heroes_unboxed_apk.pdfIn PDF document text
    • http://jalimojaben.iblogger.org/capitalismo_vs_socialismo.pdfIn PDF document text
    • http://xuruwerufasafer.22web.org/90773800926.pdfIn PDF document text
    • https://cdn.sqhk.co/bureruverog/jijb1ic/classeur_a4_format_paysage.pdfIn PDF document text
    • http://pinenud.mygamesonline.org/molemebudefa.pdfIn PDF document text
    • https://cdn.sqhk.co/muxaferamet/2yE8StG/31770425546.pdfIn PDF document text
    • http://bedomukuruxe.22web.org/91358653453.pdfIn PDF document text
    • http://tumuduwaju.mypressonline.com/b_pharmacy_1st_semester_books_free_download.pdfIn PDF document text
    • http://tesekal.mygamesonline.org/kizisitosesizatejowef.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwoxegolewa/cZbukz0/monopoly_bingo_game.pdfIn PDF document text
    • https://cdn.sqhk.co/tifesiwafo/DjirWgh/jojexanesadegifaxuwov.pdfIn PDF document text
    • http://novedexezenel.66ghz.com/baaghi_movie_video_song_2016.pdfIn PDF document text
    • http://xabudumame.mypressonline.com/angela_carter_the_werewolf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ab21b31-7c16-4f6d-9e7c-f2a749971101/how_to_control_speed_of_a_dc_motor_with_arduino_and_without_potentiometers.pdfIn PDF document text
    • http://musavojiresi.epizy.com/69783302216.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/12095553777.pdfIn PDF document text
    • http://demudixidetaku.rf.gd/51123992724.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a118d0bf-05ef-4d86-830d-f40996641990/new_age_spiritual_stores_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/joxogo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3d294ad-dbed-4bcf-a8af-7b0cecfc3db7/68916542358.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_off0000edd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD1 5448 bytes
SHA-256: d3edf8654afa3c9da146c11121ce5de31d9e0db52e5302df15a1d3f8a7468c7c
font_01_sfnt_off00010041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10041 11440 bytes
SHA-256: 07947b152c10c1372f4a7c24dc78314f64e19283cd36205484f3a4b29c71b05e

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