Malicious PDF — malware analysis report

Static analysis result for SHA-256 95e8f503efa8a431…

MALICIOUS

PDF

76.8 KB Created: 2021-03-10 03:24:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d51573dd888108612ed66391ab9d899a SHA-1: 9f2779bf4d113c2d7a003c1c055565790f94a53a SHA-256: 95e8f503efa8a431f343017eb61f81c53e712a62d5172f14e487ea980eca436a
96 Risk Score

Malware Insights

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

The file is a PDF that contains multiple embedded URLs, suggesting it is designed to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. The presence of embedded URLs and the PDF structure point towards an attempt to exploit users by masquerading as a legitimate document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://golowaki.ru/award?keyword=jurnal+pendidikan+islam+di+indonesia+pdf
    • http://difipalilif.scienceontheweb.net/edexcel_igcse_chemistry_student_book_free_download.pdf
    • http://tokepubex.getenjoyment.net/biometria_hematica_normal_en_nios.pdf
    • http://1xbet-registr.site/storyboard_free_softwarezkbfx.pdf
    • https://cdn-cms.f-static.net/uploads/4443372/normal_60467661c1cdd.pdf
    • https://cdn-cms.f-static.net/uploads/4449618/normal_601a8401d58e4.pdf
    • http://raicen.com/popotemudezlzy8.pdf
    • http://guzexesuge.mypressonline.com/xalevaxukugibiriseg.pdf
    • https://static.s123-cdn-static.com/uploads/4475208/normal_5ff33e5e4e776.pdf
    • http://punavuvipufov.sportsontheweb.net/ketixuwamelokiwupotuvurow.pdf
    • http://italywow.info/life_and_times_of_frederick_douglass_summarya5vpp.pdf
    • http://demuxum.getenjoyment.net/3544073600.pdf
    • https://cdn-cms.f-static.net/uploads/4460066/normal_602930377cb3a.pdf
    • https://cdn.sqhk.co/sosobita/hiq4geC/86519180901.pdf
    • https://cdn-cms.f-static.net/uploads/4470224/normal_60250b0e9d4d3.pdf
    • https://cdn.sqhk.co/tukawezezo/jdhXbif/download_game_stickman_tennis_mod_apk_offline.pdf
    • http://kmplitka.shop/2812928613287tsu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://vokesakogo.onlinewebshop.net/imax_b6ac_v2_software.pdf
    • http://rijemow.onlinewebshop.net/steps_to_personal_revival.pdf
    • http://gaxilitexu.onlinewebshop.net/dazurobatovinumijoxonoxol.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3df.bin
c2334f00e9c2b7d823def7e1ad314b596da38ca278558bcac5ecd2b659e6f61a
pdf-font-stream PDF embedded font (sfnt) at offset 0xE3DF 5040 bytes
font_01_sfnt_off0000f4e0.bin
81bf0ae811aa3dbfddf4f32ee11ffc38f36aef31e5022c5f7e155ffa5b8be858
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E0 10196 bytes
font_02_sfnt_off0001178c.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x1178C 4324 bytes