Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb092b93fd84d7b7…

MALICIOUS

PDF

71.1 KB Created: 2021-01-06 15:43:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d0d5e62779a70fcd0669acec82305963 SHA-1: 9bc33eb5abe9ba80f1c60f732fe8983969f432a6 SHA-256: bb092b93fd84d7b759aa4afd06d3cdaee5ddb1aa2dd0167524a3c74e422d0833
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to a suspicious domain, likely used to host a phishing or malware delivery page. The document body, though heavily obfuscated, appears to be a lure related to "Umbrella academy soundtrack free", suggesting a social engineering tactic to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffset.ru/aws?utm_term=umbrella+academy+soundtrack++free PDF link annotation
    • https://cdn.sqhk.co/mutexeze/OLidrZ4/adelantado_trilogy_book_3_conclusion_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/tororukiwuri/jehidjb/thomas_friends_go_go_thomas_song.pdfIn PDF document text
    • https://cdn.sqhk.co/mirofifuba/0aNesw5/house_flipper_nintendo_switch_bugs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501037/normal_5fb39b762a1e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408174/normal_5fee805b99ccd.pdfIn PDF document text
    • https://cdn.sqhk.co/xufatirumina/geihhig/crash_cars_for_sale_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/rogapakaler/r0nijqA/91426591825.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452595/normal_5fe851a21f435.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467322/normal_5fde1ab889ffa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/fable_anniversary_blue_mushroom_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/psn_code_list_unused_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7a84d44-2165-4800-a37e-fa70977aa552/bokanugafuziwolurawivera.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/sadavivazados.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/16399037142.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7de18092-0840-4539-960b-929ed4010bf5/sorry_in_korean_language_biane.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_off0000d78f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD78F 5464 bytes
SHA-256: 75043c72d03372030d366b79b23d9a68cf61a3af953277941492282bc685192f
font_01_sfnt_off0000ea14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA14 11160 bytes
SHA-256: 83ca1c58bf67a50efd98a1d39245099afc73672f3c1d967cc3050d39a4f1cf68

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