Malicious PDF — malware analysis report

Static analysis result for SHA-256 9080785900dc9777…

MALICIOUS

PDF

69.3 KB Created: 2021-03-11 19:49:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 8783c63741182c99da738320833a6685 SHA-1: 075b7fa3f997f2f85febad4dbac6786d25117e69 SHA-256: 9080785900dc9777f60896ecf4837d762dd18cbeedfece5264566880cef7933d
124 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable hosting domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are characteristic of phishing campaigns that aim to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8511

Heuristics 4

  • 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
  • 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://leonvi.ru/award?keyword=comment+r%25C3%25A9unir+plusieurs+fichiers+pdf+en+un+seul+sur+mac PDF link annotation
    • http://medway24.com/81744032665xkp9h.pdfIn PDF document text
    • https://lepatoketi.weebly.com/uploads/1/3/4/7/134732542/5896301.pdfIn PDF document text
    • http://boputev.66ghz.com/60477095741.pdfIn PDF document text
    • http://geleostone.online/84979564909eu2rk.pdfIn PDF document text
    • http://plsale.pro/9_months_before_october_24_2006aw1sy.pdfIn PDF document text
    • http://viza.expert/steven_universe_ski_adventure_time_crossover_fanfictionnelt4.pdfIn PDF document text
    • http://webmastervlad.ru/fireball_anime_20204ah7j.pdfIn PDF document text
    • http://esplus.pro/20672589765e22aq.pdfIn PDF document text
    • http://weraka.online/interpreting_a_food_web_aurum_science_answersti47o.pdfIn PDF document text
    • https://wugepugozufov.weebly.com/uploads/1/3/4/7/134744675/tazufotuvum.pdfIn PDF document text
    • http://hookup158.fun/what_is_law_of_intellectual_propertybd7bv.pdfIn PDF document text
    • https://pagilosotutan.weebly.com/uploads/1/3/0/9/130970008/bexabax-xujoledera-woxatisedopod-motarasujim.pdfIn PDF document text
    • http://akmurzina.com/diy_large_3d_printer_plans4heo7.pdfIn PDF document text
    • http://bio-ita.fun/135429670kxsd4.pdfIn PDF document text
    • https://mepodatadun.weebly.com/uploads/1/3/1/4/131452799/1997236.pdfIn PDF document text
    • http://nakidki-alkantara.xyz/39892417205qf7u2.pdfIn PDF document text
    • http://helpcenter.business/592488581677c9sd.pdfIn PDF document text
    • https://kemodiduwe.weebly.com/uploads/1/3/4/2/134235489/4450856.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/mokuwanibof/mathematics_grade_7.pdfIn PDF document text
    • http://ruxurosagogaru.epizy.com/gefuvomiku.pdfIn PDF document text
    • http://mulagokonud.rf.gd/football_clubs_for_9_year_olds_near_me.pdfIn PDF document text
    • http://gofosuxubajo.epizy.com/planet_earth_2_jungles_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/ejercicios_aumentativos_y_diminutivos_4_primaria.pdfIn PDF document text
    • http://vexeger.rf.gd/android_go_os_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/bodiboduja.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/56516131592.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fdcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDCD 5444 bytes
SHA-256: 40bbb358cb7be1ef43b6d96a02a88c3eb21605334779067381b03f38226affbc

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