Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e017ef8cffc5154…

MALICIOUS

PDF

294.9 KB Created: 2021-03-01 07:10:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 526fdf1bff7778bc5819e7d0919c74c8 SHA-1: 017472dc2dabeccebcdb6cd0b0cd0bbd26239232 SHA-256: 5e017ef8cffc5154fe4b5b57626bf981e37af973c5976a0b78e4c27e130cd317
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, which points to a suspicious domain. The document body, though heavily obfuscated, appears to contain search terms related to 'Prey' and 'mind control', suggesting a social engineering lure. The presence of an embedded URL and the ML classifier's high confidence score indicate a phishing attempt designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9807

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://leonvi.ru/aws?utm_term=prey+how+to+remove+mind+control PDF link annotation
    • https://cdn.sqhk.co/boguzivipel/0jajbhg/mini_golf_fort_collins_co.pdfIn PDF document text
    • http://kufafukedexepix.mygamesonline.org/84858819709.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/how_to_reset_a_pressure_switch.pdfIn PDF document text
    • https://cdn.sqhk.co/defisepeniba/fc6gjje/the_wolf_of_wall_street_trailer_download.pdfIn PDF document text
    • http://kasaxeko.mypressonline.com/mitedeninadiv.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/how_to_trade_the_daily_forex_chart.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/bojafazes/game_ps1_chrono_cross_disc_2.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/negolido.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/89670495691.pdfIn PDF document text
    • https://s3.amazonaws.com/rodakarugupoko/ridisaturonawuxer.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/29868479760.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/geravumitegegewe.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/backpacking_india_travel_guide.pdfIn PDF document text
    • http://disoluje.myartsonline.com/zuvuzi.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_off000447fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x447FE 2960 bytes
SHA-256: 4253ce374f546ed82c0b962bfad5e193173c5af7311640f7068ccdda2cb38311
font_01_sfnt_off0004527f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4527F 5044 bytes
SHA-256: 42453c6d0b63f68646ded0ae8a48f057069356f43e4558f17c8ba5f9ba2f6950
font_02_sfnt_off0004639a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4639A 12140 bytes
SHA-256: e41586d81ca59e38ffa7aa45727210e682e257da85dff44ec2202183acfbd38b

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