Malicious PDF — malware analysis report

Static analysis result for SHA-256 486564747c8a4da8…

MALICIOUS

PDF

77.0 KB Created: 2021-03-31 00:40:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2245ed9bfa25619cea314c4b7f4813e5 SHA-1: 9af30a1d8d9af47bc2d8a28752c64b5d456482d7 SHA-256: 486564747c8a4da863be48d7e11647c4468c030c23cf8fba435b7a5216f50a59
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a phishing site, suggesting the PDF is used as a lure to redirect users. The PDF structure and embedded content are consistent with phishing campaigns that leverage documents to distribute malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/strik?utm_term=what+are+the+stages+of+spelling+development
    • http://pazujiz.mygamesonline.org/85910929573.pdf
    • https://static.s123-cdn-static.com/uploads/4425256/normal_5fcb3329201b9.pdf
    • https://cdn.sqhk.co/giganopof/hjGgipC/grow_financial_credit_union_payoff_address.pdf
    • https://cdn.sqhk.co/sepovili/4hfjacs/86795753600.pdf
    • http://vixemifojetinag.sportsontheweb.net/17530123555.pdf
    • http://azalea.store/40862835201e0z43.pdf
    • https://cdn.sqhk.co/kokijunuxagi/gdYgjV5/dimeb.pdf
    • http://newberginvestmentproperty.com/adagio_sheet_musicqtyuo.pdf
    • http://roskycnmx.com/define_booklet_report06b3h.pdf
    • https://cdn-cms.f-static.net/uploads/4384655/normal_5fdbe2156bb2f.pdf
    • http://iclod.tech/how_to_reply_thank_you_email_professionally_to_boss0jyby.pdf
    • https://cdn.sqhk.co/jirowolad/idtgfB3/98444246486.pdf
    • https://static.s123-cdn-static.com/uploads/4500438/normal_5ff28dd113626.pdf
    • http://givimemaregudum.sportsontheweb.net/alphabet_activities_for_kindergarten.pdf
    • https://cdn.sqhk.co/niwonosorude/hhjVgch/crossword_mysteries_season_1.pdf
    • http://zakukat.iblogger.org/77599455192.pdf
    • https://cdn-cms.f-static.net/uploads/4484365/normal_60192e52f003d.pdf
    • http://gufutaca6.xyz/52508472102951c4.pdf
    • https://cdn.sqhk.co/bibilofefi/zPVZygh/daxivapidavowisewezix.pdf
    • https://cdn.sqhk.co/lezubenewago/9alhjgi/random_facts_about_mental_illness.pdf
    • https://cdn.sqhk.co/madilaxetevo/adweILJ/top_caller_tunes_telugu_2019.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mebexadesojixip.rf.gd/ye_barish_ka_mausam_song_free.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_off0000ee16.bin
e43a28c0a28c338c6357f29abcf7c4d562af8962a30a1b8f04e0ef77528dfe44
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE16 5528 bytes
font_01_sfnt_off000100d5.bin
38f413a1861ca4683e6f7b492a2b76f84683dca2cbe142a497806014906783e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x100D5 10532 bytes