Malicious PDF — malware analysis report

Static analysis result for SHA-256 90b705df49daed0d…

MALICIOUS

PDF

88.4 KB Created: 2021-01-14 04:54:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a5c11c0aedb58bc9b620ba60826cb6ba SHA-1: ddc6cb0b35c761f73731026e3195d9ac3ce8d89d SHA-256: 90b705df49daed0d0df2ff17147be923238a2dde9fffe72f288c74e2d8cddc41
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely for malicious purposes. The document body, though heavily obfuscated, appears to contain keywords related to 'Netflix app android minimum requirements', suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffe.ru/aws?utm_term=netflix+app+android+minimum+requirements PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387810/normal_5f8d98df6dd8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387698/normal_5f97e75367828.pdfIn PDF document text
    • https://site-1085087.mozfiles.com/files/1085087/bijilijebadaj.pdfIn PDF document text
    • https://cdn.sqhk.co/tilomulobet/hehjm8T/thumbelina_original_story_summary.pdfIn PDF document text
    • https://site-1175602.mozfiles.com/files/1175602/40497367124.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/suzujewa/as_400_emulator.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/gevuvakowibap.pdfIn PDF document text
    • https://s3.amazonaws.com/gebaxovudofe/sijigoxekuxuzomi.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/kuxamulonovavenewanenadi.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/ordinal_numbers_worksheets_for_kindergarten.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/sudden_attack_2_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/trait_d_aix_la_chapelle_texte.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/bbc_learning_english.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/50360959442.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102B1 5232 bytes
SHA-256: 9d571962248c409a225e6702a2d5eacd095c71cb6abb4219bbd0a272f069f5a0
font_01_sfnt_off0001145f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1145F 15296 bytes
SHA-256: 84a2201abf3f2299de2b515ac502ec145491f63db7de72f62ed10fa72248037f
font_02_sfnt_off0001445c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1445C 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.