Malicious PDF — malware analysis report

Static analysis result for SHA-256 62ac63b1602e28be…

MALICIOUS

PDF

78.9 KB Created: 2021-03-14 19:50:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 830499807cc881f10c6f5c81804d5f2f SHA-1: dc0af4451f1d19f26e0e7501429b76be13727bf7 SHA-256: 62ac63b1602e28be51dcc790bde8c1bc09dd29580bbf338fec4e48e46c3be779
96 Risk Score

Malware Insights

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

The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://maypoin.ru/wix?keyword=crap+test+song', which is likely a phishing or malware distribution URL. The PDF structure itself does not contain executable scripts, but the presence of the malicious URI strongly suggests an attempt to redirect the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://maypoin.ru/wix?keyword=crap+test+song
    • https://static.s123-cdn-static.com/uploads/4386828/normal_5fcecb3673486.pdf
    • https://cdn.sqhk.co/lawafopugu/h0Uhbjd/street_fight_gang_war.pdf
    • https://cdn-cms.f-static.net/uploads/4368222/normal_5fe612590a00a.pdf
    • https://cdn.sqhk.co/winogolelog/jjQjjge/4535702840.pdf
    • http://viwaginuf.iblogger.org/what_are_the_steps_of_closing_process.pdf
    • https://static.s123-cdn-static.com/uploads/4367290/normal_5fed6af06224a.pdf
    • https://static.s123-cdn-static.com/uploads/4401989/normal_5fec1b7e9d0fe.pdf
    • http://lijovafe.22web.org/27160369466.pdf
    • https://cdn.sqhk.co/josurowelimu/eqRihVI/real_steel_game_pc_online.pdf
    • https://cdn.sqhk.co/fusunusol/jheUuhg/gogimaxizojawekepobos.pdf
    • https://cdn-cms.f-static.net/uploads/4402944/normal_5fd691a7e8da7.pdf
    • https://static.s123-cdn-static.com/uploads/4488092/normal_6004bb0fb1f34.pdf
    • https://static.s123-cdn-static.com/uploads/4375518/normal_5ff040659a3bb.pdf
    • https://cdn-cms.f-static.net/uploads/4414173/normal_604437504a2a3.pdf
    • https://cdn.sqhk.co/nikofejujel/i6oaiaO/css_rounded_corners_table_cell.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jezaxojipevu/literature_survey_in_report.pdf
    • https://uploads.strikinglycdn.com/files/29ab7147-ddea-4904-b7eb-ba0531835137/what_ink_does_epson_wf_3640_use.pdf
    • http://vudafudilisa.epizy.com/33622779446.pdf
    • https://uploads.strikinglycdn.com/files/3d2047a7-8ffc-4eec-af8a-4c12d05f380d/zakefadidusibaruzovagu.pdf
    • https://s3.amazonaws.com/tutasujal/whatsapp_apk_mirror_2._18._329.pdf
    • https://s3.amazonaws.com/jukoxisojow/what_kind_of_intermolecular_forces_does_co_have.pdf
    • https://s3.amazonaws.com/futamo/alberta_works_income_reporting_online.pdf
    • https://uploads.strikinglycdn.com/files/652b84ea-00e0-4dbd-9ea5-e22f6aa4c09b/golds_gym_stationary_bike_ac_adapter.pdf
    • http://fiwitotakego.rf.gd/bulletproof_kevlar_sheets.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f935.bin
bcf129e4a08106c0dfc82cc0500e33c62b59b8e9d7bbf64256ffec115379dae0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF935 4860 bytes
font_01_sfnt_off000109c7.bin
9db5a4b0be70efd8c6419ffd1fa28960b3f97d32f79040d1512757248a0a92e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109C7 11108 bytes

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