Malicious PDF — malware analysis report

Static analysis result for SHA-256 41d0d950adf7992c…

MALICIOUS

PDF

70.1 KB Created: 2021-03-25 06:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 680109eb1163d4803df8eb363c0b4480 SHA-1: e242e3af3c56cd393c3f4433aaaef0afae240e2d SHA-256: 41d0d950adf7992cec5e76c7715d5f5a90a0a2fb93219164df6944cc975055a5
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. ClamAV also detected it as a phishing trojan. The document body, though heavily obfuscated, appears to be a lure related to 'animal farm quotes' to disguise the malicious intent of directing users to a phishing site.

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://jottigo.ru/strik?utm_term=benjamin+animal+farm+quotes+chapter+1 PDF link annotation
    • http://nusowutevu.getenjoyment.net/14293156855.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379610/normal_600b54cb33e62.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391335/normal_60073dcabe96b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382790/normal_6017c36f454c4.pdfIn PDF document text
    • http://retapadu.medianewsonline.com/handbook_of_space_astronomy_and_astrophysics.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491410/normal_605aaec5e201e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475580/normal_5fdbd9f5147fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388279/normal_601ce48810222.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/acls_study_guide_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bd6e7ed-1812-43b2-a4a7-a6a52b8a5176/82161552550.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/how_to_open_liftmaster_garage_door_motor.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/vuxinokijezurutupevog.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/4682041000.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/able_resume_templates_word_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/yajamana_audio_song_kannada.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/19887201533.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14ebb2ae-eabb-40d7-b50d-ead8b2a7c612/what_are_the_aims_of_psychology.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_off0000d35b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD35B 5560 bytes
SHA-256: b39c557511c87dd4a1e0840790abf39b4d1a866ed43eaeaecc5e7910e2f5295e
font_01_sfnt_off0000e62d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62D 10944 bytes
SHA-256: 656e48f208859a48de566874ae8314717d98d6596b891f5771176c0dae1cc785

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