Malicious PDF — malware analysis report

Static analysis result for SHA-256 b92ea8b81264f9a6…

MALICIOUS

PDF

78.9 KB Created: 2021-02-01 04:10:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: d799c5eb4ac18b804e791bfe81fab708 SHA-1: 0fd6436b0c403757752422bcce4efed89e4ff0de SHA-256: b92ea8b81264f9a6e64bf2f5a6fec748f0c0c58ffabb7e8e72755cd9cb14413f
96 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a catalogue, aligning with common phishing tactics. No scripts were extracted, but the presence of external URIs indicates a potential download or redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/aws?utm_term=catalogue+cuisine+ikea+2019+pdf PDF link annotation
    • http://iuts.space/physioex_exercise_7_activity_2rubmo.pdfIn PDF document text
    • http://sreview.online/43326796653ufuxt.pdfIn PDF document text
    • http://ighelpcenter.xyz/jetaudio_player_pro_mod_apk8elbd.pdfIn PDF document text
    • http://wiinorama.website/843657720514zlmo.pdfIn PDF document text
    • http://daating19.site/podcast_app_podcast_player_podbeanlf1my.pdfIn PDF document text
    • http://gujafitixa.iblogger.org/crappie_fishing_report_southern_illinois.pdfIn PDF document text
    • http://taxiditugivubed.iblogger.org/journal_of_endodontics_author_guidelines.pdfIn PDF document text
    • http://hesap-al-sat.com/reactions_of_metal_carbonates_with_acids_worksheet_answers7tx2e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lulelepese/octane_and_cetane_number.pdfIn PDF document text
    • http://jafojib.rf.gd/charity_event_poster_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/tarulid.pdfIn PDF document text
    • http://vibulowivez.epizy.com/free_game_capsa_susun_offline.pdfIn PDF document text
    • http://nadiripu.epizy.com/41415455908.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/charlie_movie_bgm_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rirusozo/zixizofekirowipoz.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/healing_garden_design_guidelines.pdfIn PDF document text
    • http://kunaraxanoxun.epizy.com/caspian_report_website.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/medical_dictionary_pronunciation.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/22272491772.pdfIn PDF document text
    • http://xavisijividefo.epizy.com/gezaxavalumusake.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/96366069123.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e72c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72C 5680 bytes
SHA-256: 1df2db644cd8fbd910c8205d0813e689ad5bfdf1d2cd77f6fa4815e6c82d48d7
font_01_sfnt_off0000faa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA6 11244 bytes
SHA-256: 2386b5c12003837a5f4ba1d376556dfedb9da94d2c7fba65046d52425f7cde1a
font_02_sfnt_off0001205a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1205A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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