Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e754fb2aea9cd1b…

MALICIOUS

PDF

69.8 KB Created: 2021-01-10 19:53:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3e45eaf7597c9d39046807661d7bc15a SHA-1: 785aec35fa8f385034d73bc9c4361af1bad9d5a6 SHA-256: 7e754fb2aea9cd1b215760ea6ae5063c1455015be244f4c47cde9126603c82ef
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafftec.ru/123?utm_term=dls+2016+apk+obb PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489730/normal_5fb022ca9521e.pdfIn PDF document text
    • https://site-1168374.mozfiles.com/files/1168374/hd_wallpapers_1080p_for_pc_windows_7_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417312/normal_5ff27da9e06a4.pdfIn PDF document text
    • https://site-1195801.mozfiles.com/files/1195801/castle_crush_idle_clicker_game_ducks.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/gitipelut/east_haven_library_ct.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/hr202_humidity_sensor_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/assassin_s_creed_black_flag_apk_data.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/87145895142.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/aadukalam_720p_video_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/free_spy_apps_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/bansko_ski_resort_information.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/good_hygienic_practices.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/58861033616.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/free_english_worksheets_grade_6.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/rofidixujum.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/betemaburunezopedixu.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_off0000d1d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1D4 5400 bytes
SHA-256: 742b0ac9ce48718cbfcd676b2d74488cd5472d363cc4f0838e807789d7844cf8
font_01_sfnt_off0000e449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE449 10872 bytes
SHA-256: c21935b64bf45b7804b5d3a5d6e1281b16eed61a89bfd2ad39876848e7ba063d