Malicious PDF — malware analysis report

Static analysis result for SHA-256 dec1fe5972b02487…

MALICIOUS

PDF

77.0 KB Created: 2021-03-24 12:21:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f60748832450c8f020227566d24b2dc8 SHA-1: 9b3802fc4c6959f32ff4b2e70dcdd6d2f1160d1e SHA-256: dec1fe5972b02487c08b4f7a1f2be42088fec6cd2f72c417bc077d6d0e29a0a4
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. Heuristics indicate it's a phishing attempt, and ClamAV detection confirms it as malware. The document body, though partially corrupted, suggests a lure related to inventory lists to entice users to click the malicious link.

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://dugedepap.ru/123?utm_term=restaurant+equipment+inventory+list+template
    • http://fibutogu.mywebcommunity.org/neurological_disorders_textbook.pdf
    • https://cdn.sqhk.co/datolabevev/jhdsD8r/green_the_planet_2_fusion.pdf
    • https://cdn.sqhk.co/mamidusidozu/fquV76k/39715796533.pdf
    • https://cdn.sqhk.co/godezixibufo/7dJijii/piano_app_download_2020.pdf
    • https://cdn-cms.f-static.net/uploads/4381962/normal_60554b7843c26.pdf
    • https://cdn-cms.f-static.net/uploads/4401538/normal_6035548cc2432.pdf
    • https://cdn.sqhk.co/benibavagoge/hgGAiio/xawoburojunomegijikonalu.pdf
    • https://cdn-cms.f-static.net/uploads/4453902/normal_603970f609304.pdf
    • http://sevowina.medianewsonline.com/south_carolina_motorcycle_permit_practice_test.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dazejifudora.onlinewebshop.net/52736115656.pdf
    • https://s3.amazonaws.com/lakadutof/empires_and_puzzles_guide_2018.pdf
    • http://xedemigu.atwebpages.com/plot_diagram_example_beauty_and_the_beast.pdf
    • https://s3.amazonaws.com/widetunipet/cemal_kafadar.pdf
    • https://s3.amazonaws.com/simujix/bevejeve.pdf
    • https://s3.amazonaws.com/sutawowirosuvuv/nuevo_diccionario_biblico_ilustrado_vila_escuain.pdf
    • https://s3.amazonaws.com/pewebopufupe/vubefudafexo.pdf
    • https://s3.amazonaws.com/regufojalojaza/buvolozo.pdf
    • https://s3.amazonaws.com/savifin/51444499971.pdf
    • https://s3.amazonaws.com/vokeri/pivir.pdf
    • https://s3.amazonaws.com/dowesitobuga/kokifes.pdf
    • http://wexoxanifew.epizy.com/nelson_textbook_pediatrics_online_reading.pdf
    • http://bawujirilo.epizy.com/53956246950.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_off0000f14a.bin
ac0eb559cc9344eb00e8254f2e273d675ce8ba58dec19a547bc9251fc9ffd0e6
pdf-font-stream PDF embedded font (sfnt) at offset 0xF14A 5260 bytes
font_01_sfnt_off0001032b.bin
f85ed393e8dc4f7c1db7c611730f1904c72294e793aa55a724a59e8e6cbda436
pdf-font-stream PDF embedded font (sfnt) at offset 0x1032B 10372 bytes