Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cf615fa9bc3f5ff…

MALICIOUS

PDF

111.0 KB Created: 2021-03-24 01:42:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1b1d93febb36f34696e8c8d5fe9eef87 SHA-1: 94957f286b03577332fcc79e3e5ad621d14b7ab1 SHA-256: 7cf615fa9bc3f5ff0d427eca9cf958feef5fc8bebb01d195e58d2bd842bd2b9c
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 0.9994

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://jottigo.ru/wix?keyword=cultura+de+honduras+ejemplos PDF link annotation
    • http://ogranicbio.space/vatetotagachs79.pdfIn PDF document text
    • https://wimekigulaz.weebly.com/uploads/1/3/1/1/131163744/vituruluzi_bakevonirutej_zekuxi.pdfIn PDF document text
    • http://strapslap.online/kusarolejatefusct9v.pdfIn PDF document text
    • https://gajifawegux.weebly.com/uploads/1/3/4/6/134649352/negukokulokod.pdfIn PDF document text
    • http://premial.su/pajikozuvipukef0aosf.pdfIn PDF document text
    • http://rufoferapavinew.medianewsonline.com/velojikajadufuluzar.pdfIn PDF document text
    • http://ukrinsure.com/feasibility_study_report_sampleigzxv.pdfIn PDF document text
    • https://cdn.sqhk.co/firijanab/hgVx1UD/guess_celebrity_baby_name_game.pdfIn PDF document text
    • http://nanonewe.scienceontheweb.net/advanced_energy_materials.pdfIn PDF document text
    • http://huaweistoreukr.xyz/gevakotitabifonamjrle.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/hot_springs_spa_heater_not_working.pdfIn PDF document text
    • http://bestunew.xyz/how_to_fill_a_conair_steamer2lm0d.pdfIn PDF document text
    • https://lijipowurop.weebly.com/uploads/1/3/4/3/134314174/nolarowotag.pdfIn PDF document text
    • http://midikakuvekume.mywebcommunity.org/angielski_dla_dzieci_materiay_do_druku.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/Iggiaii/funny_racing_cars_apk_download.pdfIn PDF document text
    • http://whalesqpa.fun/marco_s_pizza_locations_in_californiafolcl.pdfIn PDF document text
    • https://cdn.sqhk.co/wularumijif/GJjhbQg/lawamebokurijub.pdfIn PDF document text
    • https://cdn.sqhk.co/sutazojawote/hh3hdjb/95796738414.pdfIn PDF document text
    • https://wumibatolazonik.weebly.com/uploads/1/3/1/4/131437616/vewetar_fazutokogede_ridexulo_kopefiba.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/how_long_to_study_for_gre_exam.pdfIn PDF document text
    • http://kasyanbeauty.com/friends_theme_song_on_piano_sheet_musicaf8u4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kapirexazi.onlinewebshop.net/maus_analysis_sparknotes.pdfIn PDF document text
    • http://todiwefexoneb.atwebpages.com/86984865155.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_off0001747c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1747C 5180 bytes
SHA-256: 363fe08e1f197253df8e483b6100cdbbd5eb137aed63673b97a429ca3f758977
font_01_sfnt_off000185eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x185EB 12084 bytes
SHA-256: 473a19b5a3f32577624d61338114cd90d0a52909ab7740a9388199394f12f9d1

Open this report in the interactive analyzer, or submit your own file for analysis.