Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e28ba1d0f8c5d3…

MALICIOUS

PDF

118.5 KB Created: 2021-02-07 12:50:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d0b8a9c8e77f0df59b66cdf6aa3b6974 SHA-1: 8dc0dcbada74e522f6f54e0461582071754a073a SHA-256: d7e28ba1d0f8c5d3eb27dad54933ac4739d925a0ba8851777f436eb3d5327691
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 0.9995

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://jacksth.ru/123?utm_term=to+kill+a+mockingbird+study+questions PDF link annotation
    • http://memaviwebepa.22web.org/bewars_movie_video_songs_hd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366311/normal_6014b6331f62a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427104/normal_5ff8edb0798eb.pdfIn PDF document text
    • http://consumer-data-protection-bureau.com/fight_song_free_easy_piano_sheet_musicvgked.pdfIn PDF document text
    • http://mugafopame.iblogger.org/vukitawutusewopafesusezu.pdfIn PDF document text
    • http://sodaapp.club/pakozosutaduvnvd0.pdfIn PDF document text
    • http://xexogafuko.22web.org/leditafalipam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463552/normal_5fd7b65d9e4a7.pdfIn PDF document text
    • http://rapalafipotofuw.iblogger.org/diablo_act_2_merc_guide.pdfIn PDF document text
    • http://vsspb.ru/fepufuxirovududobo0awto.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450036/normal_5ff215380d285.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420448/normal_5fd26a69b8d0b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379964/normal_5febe5f86a456.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jorunodup.rf.gd/59064340107.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/sevosotuludulovin.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/chicago_manual_of_style_book_citation_example.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/dapegixikotoxosemebure.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/dawn_dish_soap_safety_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/lodipubivirikosonemakez.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/apa_citation_format_generator.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/chimera_ios_12._3.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_off0001942e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1942E 5640 bytes
SHA-256: 67b27242d4ee622310cf44b041e1b4460214ac156e34687b61361c2c9eb1117d
font_01_sfnt_off0001a73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A73D 10660 bytes
SHA-256: c73378d89f03052417aad888293ed9b89f43ccb880df955eaf765eb7baccdd7c