Malicious PDF — malware analysis report

Static analysis result for SHA-256 f325372244609395…

MALICIOUS

PDF

97.2 KB Created: 2021-03-15 02:12:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: e76af8a28e6142416fdfb56dd3c202dc SHA-1: 19eb64bcf83ebbe5ff391854a27ee662a2623120 SHA-256: f32537224460939545afa33ebb6a69a32b9c8481a89c2c44577ac1885347a430
136 Risk Score

Malware Insights

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

The file is a PDF document that was flagged by ClamAV as a phishing trojan. Heuristics indicate the presence of an embedded URI and a lure for a password-protected archive, suggesting a phishing or credential harvesting attempt. The ML classifier also strongly indicated maliciousness. The embedded URL likely serves as a download link for a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://vilenefex.ru/award?keyword=informe+de+auditoria+informatica+ejemplo+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404976/normal_602968b51bb07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501963/normal_5fd397bf9cbe9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370288/normal_603e9d6543d49.pdfIn PDF document text
    • https://cdn.sqhk.co/xedomobedusi/geZBz5e/funny_barrel_racing_shirts.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462036/normal_601c61160e3c5.pdfIn PDF document text
    • https://cdn.sqhk.co/nozedimasav/hjMK1gd/bugs_bunny_characters_hunter.pdfIn PDF document text
    • https://cdn.sqhk.co/linotepibubi/Cjc1jHi/bhavesh_joshi_superhero_movie_coolmoviez.pdfIn PDF document text
    • https://cdn.sqhk.co/pidikuso/f2fjhih/glory_road_lyrics_and_chords.pdfIn PDF document text
    • http://gravkamen.ru/honda_goldwing_gl1800_service_manual12mg8.pdfIn PDF document text
    • http://nesobaka3.xyz/jozoxojobizuziruwvqgl4.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/gg7hihh/smash_car_hit_mod_apk_unlimited_money.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/alexander_s_empire_worksheet_answers.pdfIn PDF document text
    • http://tipuwexo.rf.gd/66565714592.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/basketball_court_template_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/brazil_economy_2018.pdfIn PDF document text
    • http://xapimiwosusuv.epizy.com/38869723053.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_off0001346c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1346C 1768 bytes
SHA-256: e87631d7d311a162ca3d34d40a2642a04527a0a38f659c97cad95ee16f9fc332
font_01_sfnt_off00013cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CD9 5136 bytes
SHA-256: 476efa048f32b8da3f93503bba25594c8419eae4c65c7467962352e2a9a27a44
font_02_sfnt_off00014e40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E40 12240 bytes
SHA-256: 652646b5240b78eae3c8263732bb0e408946bc0da6b689faca9395c4223072d5

Open this report in the interactive analyzer, or submit your own file for analysis.