Malicious PDF — malware analysis report

Static analysis result for SHA-256 74e2a2429df28929…

MALICIOUS

PDF

79.4 KB Created: 2021-03-19 14:09:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5119e19a021d8cc4362acc6eecaf83ed SHA-1: d0a5aaa72f70a2c01b0e54f64d49fa6605a92e0a SHA-256: 74e2a2429df28929d41f45335867cddd4d265d8cbcc6415fde9965eec6e8dfe0
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL that directs to a domain associated with malicious activity, disguised as a worksheet. The PDF structure and embedded content suggest an attempt to trick the user into visiting a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/wix?keyword=participial+phrase+and+gerund+phrase+worksheet
    • http://xoxibusu.iblogger.org/duxebubogazesasajuwu.pdf
    • https://cdn.sqhk.co/dovawowo/Cefjfuz/tologodupitavomin.pdf
    • http://potugonuxafeloz.iblogger.org/digital_circuits_textbook.pdf
    • http://fetesitomer.mygamesonline.org/9223247190.pdf
    • https://cdn.sqhk.co/nurafurofopu/hiwggpw/electricity_and_water_services.pdf
    • https://cdn.sqhk.co/ribobujir/AvpgerW/bomas.pdf
    • http://bajelow.iblogger.org/beautiful_flower_bouquets_photos.pdf
    • http://topukovatawosu.sportsontheweb.net/54723873538.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tuxenipup/online_fact_sheet_maker.pdf
    • http://pasumogebono.rf.gd/multipart_form_data_json.pdf
    • https://s3.amazonaws.com/donarepemi/suwamipoxuvekemagigoreso.pdf
    • http://newigumumakewi.epizy.com/canada_map_with_capitals.pdf
    • http://satawakerexe.atwebpages.com/dsm_personality_disorders.pdf
    • https://s3.amazonaws.com/rozebofukixus/xuvividijisumajajimavidi.pdf
    • http://lijomoxanegug.rf.gd/how_do_you_analyze_a_visual_in_text.pdf
    • http://viropamel.rf.gd/nukodudazujo.pdf
    • https://s3.amazonaws.com/fosalizuzu/google_analytics_core_reporting_api_v4.pdf
    • https://s3.amazonaws.com/gudukupir/suvujep.pdf
    • http://ziwotojideg.rf.gd/how_to_pair_yamaha_soundbar_to_xfinity_remote.pdf
    • http://danebusuji.onlinewebshop.net/bin_sachivalay_clerk_paper_2020_download.pdf
    • http://momewitu.epizy.com/nerigefej.pdf
    • http://pogetowem.onlinewebshop.net/active_directory_books_free_download.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_off0000f83a.bin
f0cefba40923c5b4e2ffe8d706ab1ab377440387ed4dc4ebd096b9f2bcaf4b8b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF83A 5492 bytes
font_01_sfnt_off00010af0.bin
6ec60a615a399fe9cdba8951138c48bd910e31b4cfc388f1b4734aa6b5872f63
pdf-font-stream PDF embedded font (sfnt) at offset 0x10AF0 10940 bytes