Malicious PDF — malware analysis report

Static analysis result for SHA-256 47be00b33ab9b86c…

MALICIOUS

PDF

71.4 KB Created: 2021-04-01 06:14:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 480e4ddef7986e8b6563c75213b2eaab SHA-1: 955af1ca91bf93a22d3b5931a0f99092c59f2441 SHA-256: 47be00b33ab9b86c0687a31858c91ce9008e9a798cbc28ad0a16e32de551feb1
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL and document body suggest a phishing lure related to an award or document, likely intended to trick the user into downloading a malicious PDF. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • 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://zajinet.ru/award?keyword=exploring+public+relations+ralph+tench+pdf
    • https://xaroduzorosu.weebly.com/uploads/1/3/1/3/131398324/buterapivujuw_nijiraje_duzes_lapasakonavobe.pdf
    • http://wukixijolori.iblogger.org/lesiones_del_nervio_vago.pdf
    • http://24goodstore.site/mexafutiniwelupobofiloldfjp1.pdf
    • http://esclub.info/zevukovojoxifedchcg.pdf
    • http://sbrf.link/6060808209384hi4.pdf
    • http://on24-system.club/fisozedivazelifotipinutega7fi.pdf
    • https://xavubetikobu.weebly.com/uploads/1/3/4/4/134474291/vofekedamedebobuva.pdf
    • https://cdn-cms.f-static.net/uploads/4383160/normal_601bb30dd51d6.pdf
    • http://telgrm.site/pajetefikamt7bea.pdf
    • https://cdn-cms.f-static.net/uploads/4458417/normal_5fdb71c109de9.pdf
    • https://cdn.sqhk.co/musutalivun/hpGB4gi/sonic_the_hedgehog_2_movie.pdf
    • https://cdn.sqhk.co/pawekenu/ugfBhap/4484756097.pdf
    • https://wofigazidiw.weebly.com/uploads/1/3/1/4/131437722/mupalimupadone.pdf
    • https://cdn.sqhk.co/sorubajuzoxe/NjeVjdJ/80201316202.pdf
    • https://cdn.sqhk.co/buwepexe/jGCijha/deed_poll_name_change_template.pdf
    • http://counterman.ru/whats_the_difference_between_diono_3r_and_3rxo9jfd.pdf
    • https://cdn-cms.f-static.net/uploads/4459469/normal_6051c43714667.pdf
    • https://wemezixogasowed.weebly.com/uploads/1/3/1/6/131637562/jebemik-tikoserorefozew.pdf
    • http://gigabaru.22web.org/reromelozogaguvuwifeven.pdf
    • https://static.s123-cdn-static.com/uploads/4417998/normal_5ff3cb7b97ff3.pdf
    • http://fallofelin.online/what_are_the_5_nitrogenous_bases_used_to_make_nucleotidesxuu1p.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nijomabip.epizy.com/vuralanufazanoten.pdf
    • http://gofosuxubajo.epizy.com/jexowinizaren.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d95f.bin
547349cbef1f66241b6d3f5007990ec8524b15a4e4f96a16bdd01e83059fa43a
pdf-font-stream PDF embedded font (sfnt) at offset 0xD95F 5584 bytes
font_01_sfnt_off0000ec53.bin
dc69343219ac030f5ebd7772ba4890056d686e7784cd670c64a6c56e79dcecf5
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC53 10540 bytes