Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab714f7f6606272a…

MALICIOUS

PDF

67.1 KB Created: 2021-04-07 10:34:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 6e917d215b05c37b4c70eb5e14b21b78 SHA-1: e578ebcfd86b303d8b7b84c928d5f824c212b07b SHA-256: ab714f7f6606272a36da04dd4e4bdf323383486e0db8d2a7a15500230f83f986
96 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, with a high risk score. It contains an embedded URI pointing to 'https://botokaw.ru/strik?utm_term=ad%2526d+first+edition+books', which is a strong indicator of a phishing or malware distribution attempt. The presence of multiple embedded URLs further supports this conclusion.

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://botokaw.ru/strik?utm_term=ad%2526d+first+edition+books PDF link annotation
    • http://fozujam.iblogger.org/2128430718.pdfIn PDF document text
    • http://befakupamexi.iblogger.org/sabelaxokolamobebamene.pdfIn PDF document text
    • http://myfirstsite.xyz/bahubali_full_movie_telugu_mp428tkq.pdfIn PDF document text
    • https://cdn.sqhk.co/kibukumivu/xgegg6h/83515017716.pdfIn PDF document text
    • http://sodahub.pro/72807670408lv6lp.pdfIn PDF document text
    • http://vipadminler.org/el_aleph_completohci8u.pdfIn PDF document text
    • https://cdn.sqhk.co/wajidafix/icjeria/jufamig.pdfIn PDF document text
    • http://ledy66.net/mifefadopitimugudim5boq9.pdfIn PDF document text
    • https://cdn.sqhk.co/lexijunibul/igJvhdt/hungry_runner_jangle_runner_running_game_clothing.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/wonumafubij/what_does_pimp_mean_for_a_girl.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/epf_malaysia_annual_report_2017.pdfIn PDF document text
    • http://zisafaziga.epizy.com/the_town_movie_in_tamilrockers.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/96837400012.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/how_to_use_the_damper_on_a_wood_stove.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/is_in_the_heights_still_on_broadway.pdfIn PDF document text
    • http://mewexudidis.epizy.com/88257411048.pdfIn PDF document text
    • http://wewuwoxije.epizy.com/wesojorurefiwaso.pdfIn PDF document text
    • http://matogojetize.rf.gd/nerezawazenerunaf.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/64967183017.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_off0000cf43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF43 4288 bytes
SHA-256: a55702c3a011aac269cc3ccb1755abce58b3869229fcbb9235ea404273f4dc4e
font_01_sfnt_off0000dddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDC 9948 bytes
SHA-256: 3c9d1358fe2925e70fa2f32a5d84f42c0d356fe98f1b981d908294590f285c93

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