Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc56891a9d7281b5…

MALICIOUS

PDF

77.6 KB Created: 2021-04-06 21:20:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f9a38c775f3e7abe547fc1f25c3bb9bc SHA-1: 7f19d7484bc9bc60b3605808d52ce89a171a13f9 SHA-256: fc56891a9d7281b5933bd098b25d438ed536caa485c2ec95722004c1ffff7ebf
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://crophysi.ru/wix?keyword=drive+by+chronicles+sidewayz+full+movie PDF link annotation
    • https://cdn.sqhk.co/vovigewuva/31hwjiz/zudupa.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/VjbPgdQ/maths_tricks_book_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/fekawitaxug/TcggzDU/jebukopiwetofuzenivizu.pdfIn PDF document text
    • https://cdn.sqhk.co/dogovonediwa/ujahcm6/espn_mlb_scores_chicago_cubs.pdfIn PDF document text
    • https://cdn.sqhk.co/vanewano/xifnhad/87367676772.pdfIn PDF document text
    • https://cdn.sqhk.co/zusisoko/UjiJigv/kusomi.pdfIn PDF document text
    • https://cdn.sqhk.co/miweguzeg/eijAyJ4/89240408737.pdfIn PDF document text
    • https://cdn.sqhk.co/pibusupi/jienkjb/68735364623.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwipabobatu/OhgTegd/wivolotebujavufezajaxiwa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fexabowowerol.epizy.com/bukirini.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/24722180706.pdfIn PDF document text
    • http://guligovidafijew.rf.gd/different_branches_of_agriculture.pdfIn PDF document text
    • http://zefupolegemawak.rf.gd/battletech_technical_readout_2750.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/vofukatenewoneroku.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/intercessory_prayer_bible.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/30817977581.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/65825090687.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_off0000eff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF5 5704 bytes
SHA-256: 6288baf60380b2c2136023891438e36cf7531021548e4bad5090c1ec8dc7931f
font_01_sfnt_off0001035f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1035F 11176 bytes
SHA-256: cc693fb543b5827c18d327f6a3c8042f6712276b5e620f16bce0e8adabaed9c1