Malicious PDF — malware analysis report

Static analysis result for SHA-256 e59a45f900fdf144…

MALICIOUS

PDF

75.9 KB Created: 2021-06-08 05:54:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: ea48ff7886914aec8d30b2f03360e743 SHA-1: 51d91279070106f4543faeb0ac50d50ea536022c SHA-256: e59a45f900fdf1448453e0a2a0a1b1e83f30db27a576caae708afc4905c5deab
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, contains text related to movie titles, and a prominent external URI points to a URL that promises movie content. This suggests a social engineering lure to drive users to a potentially malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://queure.ru/pbw?utm_term=pirates+of+the+caribbean+tamil+dubbed+full+movie+watch+online PDF link annotation
    • https://logudapixifoke.weebly.com/uploads/1/3/4/3/134371583/6104f69822.pdfIn PDF document text
    • https://nabesoke.weebly.com/uploads/1/3/4/0/134042749/310058.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/42a8acec-34a3-4900-abf1-48f363ec07dd/12904799008.pdfIn PDF document text
    • http://mupalunava.pbworks.com/f/quadratic_equation_questions_for_sbi_clerk.pdfIn PDF document text
    • http://mawasuwov.pbworks.com/w/file/fetch/144556701/bhishma_full_movie_in_hindi_dubbed_download_filmywap.pdfIn PDF document text
    • http://zizovitunex.pbworks.com/w/file/fetch/144487014/82217638336.pdfIn PDF document text
    • http://sakulibur.pbworks.com/f/fakapuvedugexudox.pdfIn PDF document text
    • http://berilizi.pbworks.com/w/file/fetch/144823482/58806411726.pdfIn PDF document text
    • http://xifilipisi.pbworks.com/w/file/fetch/144683037/coleman_lantern_travel_trailer_parts.pdfIn PDF document text
    • http://kuzimotum.pbworks.com/w/file/fetch/144823269/first_aid_basic_sciences.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c0c3f0d-f665-4916-ae16-bb1331384b8a/application_format_for_school_teacher_job_in_hindi.pdfIn PDF document text
    • http://nusuwoxub.pbworks.com/w/file/fetch/144426261/angular_custom_form_control_ngmodel.pdfIn PDF document text
    • http://dujimowiwup.pbworks.com/f/what_does_ra_look_like_the_egyptian_god.pdfIn PDF document text
    • http://fisagibop.pbworks.com/w/file/fetch/144779820/xafugavodulabajonabipem.pdfIn PDF document text
    • http://lebunurivugu.pbworks.com/w/file/fetch/144439776/family_tree_printable.pdfIn PDF document text
    • http://volikedejefa.pbworks.com/w/file/fetch/144811926/76370650918.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33c7c716-3064-4b95-92a1-3db7896c36ec/how_to_change_solenoid_cub_cadet_lt1045.pdfIn PDF document text
    • http://wuwolufit.pbworks.com/f/is_pumpkin_a_veg_or_fruit.pdfIn PDF document text
    • http://tefuraviwuw.pbworks.com/f/nufizevivaliwexapuguzozex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce0af812-8ec3-4e71-9dae-bdf8e0a09604/69675194424.pdfIn PDF document text
    • http://xobapotowi.pbworks.com/f/rilimububopafaxezokura.pdfIn PDF document text
    • http://lakebimutep.pbworks.com/f/motijajefore.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/056e4e9f-c3f5-481e-b51b-d8a5b18d5252/75488198992.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_off0000e9b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B5 5556 bytes
SHA-256: 802b2632d4d6c80e6ec2599eb80173755d9060b041b0f29ba06f012d87fca931
font_01_sfnt_off0000fc7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC7D 10896 bytes
SHA-256: 2fcc96c90e3b8172ff15a71ce9af1897f4644df7d5d6357da0b2dbe13a75f3a8

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