Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3368cfd3a23a4a4…

MALICIOUS

PDF

73.0 KB Created: 2021-03-22 04:09:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ee9374e1f0b31bc8b5407594c2167be SHA-1: dd3b69e6b84ad034d5a708500db5fc0bff739724 SHA-256: d3368cfd3a23a4a42eda327b9b545524ffd5bef6a01e97ae7111695fa03bd54b
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, indicating a high likelihood of malicious intent. The document body and embedded URLs suggest a phishing lure related to modem setup, directing users to potentially malicious sites. The presence of embedded URLs and the overall detection by security tools point towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://fokemale.ru/strik?utm_term=how+to+setup+cradlepoint+modem
    • http://zavuwoxek.22web.org/anderson_introduction_to_multivariate_statistical_analysis.pdf
    • http://dipugipedanam.sportsontheweb.net/tinoxip.pdf
    • http://copyright-securityx.com/how_to_get_your_cdl_onlinevhgs4.pdf
    • http://beliyden.xyz/johanna_gomez_reporterernmt.pdf
    • http://vadosaj.getenjoyment.net/kutitob.pdf
    • http://sesalon.xyz/who_makes_the_best_auto_darkening_welding_helmetxedt1.pdf
    • https://cdn.sqhk.co/bipokagiti/aghhjji/impulse_and_momentum_physics_lab_answers.pdf
    • http://remoliwagofaju.mywebcommunity.org/date_a_live_encore_3.pdf
    • http://boneluvez.iblogger.org/dash_go_rapid_egg_cooker_directions.pdf
    • https://cdn.sqhk.co/nufesewepi/hHjh045/98919560557.pdf
    • http://laribij.scienceontheweb.net/defending_jacob_novel_by_william_landay_ending.pdf
    • http://fitness-ital.fun/the_awakening_chopin_analysisw2imr.pdf
    • https://cdn.sqhk.co/zuronenom/CHgeRha/praise_and_worship_songs_2019_mp3_download.pdf
    • https://cdn.sqhk.co/lisupixiwe/R2Mcij5/vakajasakupolu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dutagewenurodub.epizy.com/40895829148.pdf
    • https://s3.amazonaws.com/wupixufekijax/mulorojuvunivovuzedi.pdf
    • https://s3.amazonaws.com/tinivukedeta/21612634478.pdf
    • http://lixavumamafaka.rf.gd/wexakonirurijagurepubenun.pdf
    • http://magajavopisili.epizy.com/latepimafopezilal.pdf
    • https://s3.amazonaws.com/pavujiniz/arms_around_you_official_video.pdf
    • http://butorinowu.myartsonline.com/apc_smart_ups_750va_lcd_230v_datasheet.pdf
    • https://s3.amazonaws.com/lusabifef/pleco_chinese_dictionary_apk.pdf
    • https://s3.amazonaws.com/devuxuzejozam/peter_parker_evil_dance_song.pdf
    • https://s3.amazonaws.com/sazomo/watoza.pdf
    • https://s3.amazonaws.com/jesidofefe/xisolewubizatumigosofi.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_off0000e165.bin
64ea622fecfd99423c84c96d40a4634c3d079403662d10210d2ccfeec62ab842		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE165 5272 bytes
font_01_sfnt_off0000f34a.bin
617c5ebad3388df91b6c9f81328cad3bb4d274c212d3a65d1c1804a20aa1be10		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF34A 10388 bytes

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