Malicious PDF — malware analysis report

Static analysis result for SHA-256 205197221eb6cee0…

MALICIOUS

PDF

85.0 KB Created: 2021-03-14 22:43:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 9b7d88051a004ab36cb4d50912cfeb26 SHA-1: 90fe1b281dd024b89b87fd3378b519841abdeae7 SHA-256: 205197221eb6cee059818d51a831af3bd883f8f564d07c54b0d73376854b854e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable domains, forming a link farm designed to redirect users. The primary URL suggests a lure related to downloading 'ac market apk apkpure download', indicating a potential phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://dugedepap.ru/wix?keyword=ac+market+apk+apkpure+download PDF link annotation
    • https://cdn.sqhk.co/goworonol/ibibHjj/51689001723.pdfIn PDF document text
    • https://cdn.sqhk.co/mivoteloxip/jBjbgfg/7101420785.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450890/normal_5fdb672b1e261.pdfIn PDF document text
    • https://cdn.sqhk.co/mivadunoxo/Naiij00/40642504059.pdfIn PDF document text
    • https://cdn.sqhk.co/vipujitebiki/rZ4Ylji/lesson_plan_activities_for_toddlers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389604/normal_602c29546882a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_604d9b54e6424.pdfIn PDF document text
    • http://hookup157.online/lafelajekarimunegowopulessfsz.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/how_to_scan_any_barcode.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/j5mSppn/best_fps_games_for_nintendo_switch.pdfIn PDF document text
    • http://picsonair.com/matanawizekawesufuxu6xufe.pdfIn PDF document text
    • https://cdn.sqhk.co/vumorumuvogi/iamia9e/pixelmon_zombie_crafting.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482413/normal_5fec9a05ae0b3.pdfIn PDF document text
    • https://cdn.sqhk.co/tiniwakutosu/hSjfja5/90539320365.pdfIn PDF document text
    • https://cdn.sqhk.co/pugepavofu/aNne7eC/glow_in_the_dark_balls_for_swimming_pool.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/Pgghdjd/99311269477.pdfIn PDF document text
    • http://miromawetibikew.mywebcommunity.org/92360252516.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/ghihc0X/zomasopuwuguxolilugadaga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bifepibapunufav.rf.gd/honda_fit_2007_mpg.pdfIn PDF document text
    • http://vumafovixono.rf.gd/date_sheet_mdu.pdfIn PDF document text
    • http://temomij.epizy.com/biology_notes_form_1.pdfIn PDF document text
    • http://setekavapitefe.rf.gd/muzometiz.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC3 5184 bytes
SHA-256: f931dced772998e296fcc98da93afe2550c1754df9b06acb2da61959088ca94c
font_01_sfnt_off0000fc63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC63 11088 bytes
SHA-256: 5dcef3ec8ccb2277512147a6c3f16b9223391649956361dcf63423c0f12ef330
font_02_sfnt_off0001220a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1220A 21772 bytes
SHA-256: 934dac612f426727967aeced1343cc2bbddd4be7b9ca9f753cffbc43b2d25ce8

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