Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed49e99b578ad97b…

MALICIOUS

PDF

83.8 KB Created: 2021-02-24 17:30:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ef99f623c57a0b199d694881dcf0b378 SHA-1: ed211629245e7596e81ffba2da614cc0e40e2146 SHA-256: ed49e99b578ad97b61458ae3bd55bb56f9bbcac5a58d378b23f27f0b44731030
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 0.9997

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://jottigo.ru/123?utm_term=colegio+de+profesionales+en+enfermeria+de+santa+fe+cuit PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374521/normal_60024c1d22f02.pdfIn PDF document text
    • https://cdn.sqhk.co/pugudanirav/hzjejgC/balenciaga_sneakers_track_2_red.pdfIn PDF document text
    • https://cdn.sqhk.co/janonaset/jhjihip/83487690271.pdfIn PDF document text
    • https://cdn.sqhk.co/nixibaraje/GjflDib/plants_vs_zombies_download_for_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/dlr3gVa/xivura.pdfIn PDF document text
    • https://cdn.sqhk.co/sarunasol/jdhejaw/mepobanatoritapetepulago.pdfIn PDF document text
    • https://cdn.sqhk.co/zativojor/jcshc5O/free_emergency_ringtones_for_iphone_7.pdfIn PDF document text
    • https://cdn.sqhk.co/fapiwejagiz/hh4hbhb/tik_tok_song_video_download_mp3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453336/normal_5fc9ebb6b8f0b.pdfIn PDF document text
    • https://cdn.sqhk.co/komajekolino/LdheKnL/zototagidozufopenavorez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lugubukegi.epizy.com/neuropsych_exam_sample.pdfIn PDF document text
    • http://dowuvoduwitovos.atwebpages.com/i_wish_you_more_writing_activities.pdfIn PDF document text
    • http://sidunutisa.epizy.com/15855787545.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_off0001087a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1087A 5380 bytes
SHA-256: ae6a32e2b78737d63ac48a7b0a09b14585de34afd7addc12a10d683d804a3c67
font_01_sfnt_off00011ab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AB1 11424 bytes
SHA-256: 586cde8aa54d61dc347130d8892eeaec38b465fd9361869e55d97980e8a3f769