Malicious PDF — malware analysis report

Static analysis result for SHA-256 12f37bc227116837…

MALICIOUS

PDF

74.7 KB Created: 2021-04-02 09:45:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 216b263bd6000023bd485327e7f8fe5b SHA-1: eec0e9db737e89d1f4fc998372be7e788fc066ba SHA-256: 12f37bc22711683702cc367fa32aadd7af2f7eba683e2bf3b4ef0049374ade2c
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/wix?keyword=three+level+comprehension+guide+for+active+reading PDF link annotation
    • http://pasetbs.xyz/xagunebarivupugujebiz3v8jh.pdfIn PDF document text
    • http://price-list.moscow/691483557861pbt6.pdfIn PDF document text
    • http://drive4mclanemilwaukee.com/starlight_city_car_racer_traffic_mask_3d7n2a2.pdfIn PDF document text
    • http://yoga-fitness.space/23316359994pix29.pdfIn PDF document text
    • http://digitalmicroteter.xyz/nijenizafurumazubize0ey9x.pdfIn PDF document text
    • http://znakomstva18x.site/mofidolomarakilifepnx3w1.pdfIn PDF document text
    • http://zootime.store/cucumber_api_testing_java_tutorial2daw6.pdfIn PDF document text
    • http://espaceabonnes.com/100088691697f9qt.pdfIn PDF document text
    • http://acupofjacob.com/kutegurawewofuterumiras43fae.pdfIn PDF document text
    • http://shothard.site/669702539438qcch.pdfIn PDF document text
    • http://zarozunaxa.iblogger.org/who_makes_tempstar_furnaces.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/patilawasu/humminbird_helix_5_chirp_di_gps_g2_combo_fishfinder_chartplotter.pdfIn PDF document text
    • http://kapetevik.epizy.com/31149597874.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/skills_for_life_improvement_programme.pdfIn PDF document text
    • http://pamakejexo.epizy.com/45461208485.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/soxepotofiwigonav.pdfIn PDF document text
    • http://tasibufoz.rf.gd/motor_areas_in_cerebral_cortex.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/drift_away_steven_universe_piano_sheet_music.pdfIn PDF document text
    • http://kiretadu.rf.gd/fepogexuvojex.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/29690818193.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/what_fast_food_restaurant_has_gluten_free_buns.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_off0000e6e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E2 5580 bytes
SHA-256: 0614e0cc93c19283ff07553762ff4c41fade409be93d98672aee113abf655498
font_01_sfnt_off0000f9b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9B9 10432 bytes
SHA-256: 8a860df474c542ec716792ded2b4de36aa22dc106adee34ed82ec1a1388daea7

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