Malicious PDF — malware analysis report

Static analysis result for SHA-256 277209c8be0943e8…

MALICIOUS

PDF

80.1 KB Created: 2021-03-06 03:18:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 27c2831f9f3ea795dadff0bc1b1b577f SHA-1: 5e8387524007c7dc24310279e4e378c9a9658258 SHA-256: 277209c8be0943e82e9b9e1e324c6c193c127de70b2cc88b4809f2fcdea4ffea
96 Risk Score

Malware Insights

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

The PDF contains an external URI pointing to a suspicious domain, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to Venezuelan law, likely intended to trick users into visiting the malicious URL. No scripts were extracted, but the presence of an external URI and the high confidence detection indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/strik?utm_term=constituci%25C3%25B3n+dela+rep%25C3%25BAblica+bolivariana+de+venezuela+vigente+2018 PDF link annotation
    • https://cdn.sqhk.co/gobenebovi/ggjhbAo/green_bay_weather_monthly.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411220/normal_5fe2047038f43.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494160/normal_5fe89a70ac9e8.pdfIn PDF document text
    • https://fijapirugonobi.weebly.com/uploads/1/3/4/3/134315317/kapuk.pdfIn PDF document text
    • https://cdn.sqhk.co/vovusupa/WmjdBtp/72730577930.pdfIn PDF document text
    • https://xuxukiworizep.weebly.com/uploads/1/3/4/7/134723333/cfb61ede7d0.pdfIn PDF document text
    • https://cdn.sqhk.co/sowanigog/Kzifgcs/bazooka_boy_3_unblocked_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369782/normal_6009f34627b69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370304/normal_5ff5315d17f73.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://493f174a-a540-412c-bacb-e5b7b26cbfcf.filesusr.com/ugd/95bb70_33f4d3c8f9574e57895f6d992f7fec15.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/64c14b2b-bddf-4a8a-b524-8a06e6325de2/gufejer.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/arch_linux_wifi_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/what_kind_of_specials_does_taco_bell_have_right_now.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f64d1845-a11e-432a-b6e2-45481a09a9e0/hard_reset_kindle_fire_3rd_generation.pdfIn PDF document text
    • https://e22e8d81-f41f-4d51-abb1-39b19d2d32bb.filesusr.com/ugd/96bf9d_197848997bd44acf950163b5e07ca2bf.pdf?index=trueIn PDF document text
    • https://43a2ba88-5de9-465b-b95f-6a4d82f2d06e.filesusr.com/ugd/dcbeda_5da85a6df5514a53b03661a64355ab20.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee884148-abef-43d8-a259-b96a49debe7a/brown_university_spring_break_2018-2019.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/adobe_flash_player_11_activex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b706521-0d53-4a31-aa0e-8cc4ac2238a7/wipawekipolab.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/dewopuvifolozamu.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/68124757612.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d5b9873-257a-40d2-bbb2-091bccbdedd8/4775497333.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_off0000f560.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF560 6168 bytes
SHA-256: f4b54850bd441f3acd4aa533ad323312272187700270f895a431a70bf01aa701
font_01_sfnt_off000109fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109FB 11388 bytes
SHA-256: 3ce33981a10f5fc8da442e214cb817946a660531c0388d05e71cb2b1dd5c1473

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