Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba654d3ca78a4e09…

MALICIOUS

PDF

72.9 KB Created: 2021-02-12 17:38:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: ee5179786312bb91859c8e8c8bffc37e SHA-1: a2eb01c9ab65c755343e372dec0602d6a9f05ba1 SHA-256: ba654d3ca78a4e0931471f9cc029c2f589c3c32afeed9b57b8a27cee056643b3
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely used for phishing or to download further malicious content. The document body, though heavily obfuscated, suggests a lure related to a 'tertiary protein example'. No scripts were extracted, but the presence of embedded URLs and the overall detection profile strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wix?keyword=tertiary+protein+example PDF link annotation
    • https://cdn.sqhk.co/zoxowowi/Viahhhg/piroraz.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/pggbOhb/colt_saa._45_ranger_edition.pdfIn PDF document text
    • https://cdn.sqhk.co/fujotojaxob/xIjhijo/can_am_defender_hd10_max_speed.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/2iehbOx/58900300042.pdfIn PDF document text
    • https://cdn.sqhk.co/jawakagufu/K4ibhbs/city_car_driving_mod_apk_unlimited_money.pdfIn PDF document text
    • https://cdn.sqhk.co/xojoweva/ohbCdJ9/34523523123.pdfIn PDF document text
    • https://cdn.sqhk.co/fabunavaxa/BXlgeii/broken_bones_roblox_tips.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/best_1080p_movies_site.pdfIn PDF document text
    • https://s3.amazonaws.com/dazawojob/aua_guidelines_prostate_cancer_screening.pdfIn PDF document text
    • http://rilobun.rf.gd/business_code_of_conduct_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/81475018100.pdfIn PDF document text
    • http://rododibez.epizy.com/hanuman_cartoon_wallpaper.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/candlewood_lake_fishing_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/physics_of_atoms_and_molecules_bransden.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/mijufuvinuwadedovomigegif.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/96875220643.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/jeopardy_game_templates.pdfIn PDF document text
    • http://zorogeloma.epizy.com/android_emulator_linux_mint_17.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_off0000e216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE216 4904 bytes
SHA-256: 50d6f92d394c601d6dfeea5736990d6480b4150ec7ae219d6b0ed2099db5c2e1
font_01_sfnt_off0000f2ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BA 10576 bytes
SHA-256: 48ad19310a7552387aa5ee4f73a575ee0b4090cdc2828d8398166c201ebb05c8

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