Malicious PDF — malware analysis report

Static analysis result for SHA-256 48cac8312afe18f5…

MALICIOUS

PDF

112.8 KB Created: 2021-03-18 12:08:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: eae21ba61b70f71ade9d2b62e1095ec3 SHA-1: 2e5769ae460b8e1f1cbbc377d57b85b99f3698d2 SHA-256: 48cac8312afe18f522be4dae486d58c14bb7df2eb93cb0354e6eedefb2d9c58e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9983

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://vilenefex.ru/123?utm_term=ain%2527+t+nobody+loves+me+better+song PDF link annotation
    • http://aazzzry.space/14750789580gj3t8.pdfIn PDF document text
    • http://invitesistem.ru/spanish_alphabet_worksheet86m3o.pdfIn PDF document text
    • http://toportt.online/app_china_apk_2018mo1jh.pdfIn PDF document text
    • http://hookup154.site/xerifesizujidogebafuziligwj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460461/normal_5fc79f6af27c1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470537/normal_5fe50b7713add.pdfIn PDF document text
    • http://vykupavto54.ru/pigudugetoligil8ilr1.pdfIn PDF document text
    • http://rezefad.22web.org/pukure.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379230/normal_5fe233bde0653.pdfIn PDF document text
    • http://vagejilubozi.iblogger.org/drawing_self_portrait_lesson_plans.pdfIn PDF document text
    • http://bestplacefor.rest/99034167148xfk6p.pdfIn PDF document text
    • http://fb-ig-copyright.com/nawisazexugufusiradakajoa5fn8.pdfIn PDF document text
    • http://successinyourlif.website/yoga_mudra_information_in_english22fv8.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/nigimul/how_many_100_bills_are_in_5_000.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/huntersville_nc_police_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/interview_questions_and_answers_for_selenium.pdfIn PDF document text
    • http://zovaner.rf.gd/42764089781.pdfIn PDF document text
    • http://fudotebu.epizy.com/74793769465.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/tolejafivesewenanalezukov.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/civil_engg_objective_questions_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/ps3_emulator_android_gta_5.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000151bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x151BF 5260 bytes
SHA-256: 1680a5186399f7e2f63cfbd6fa8fb85b70e2654ae3ccbb4cb1b1a1857516cd82
font_01_sfnt_off0001635e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1635E 6340 bytes
SHA-256: 58765afbf79dfac18aa2be5657ba4048cf3b195f9206c7e7e4c9fcdb971a68cd
font_02_sfnt_off000172f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x172F2 14096 bytes
SHA-256: 64f3ff747a5e705ea2fb3fab334b78ba294ba90648049d2f6067b6eb912ff1b5
font_03_sfnt_off00019f1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19F1D 16124 bytes
SHA-256: ca8924332c682f6aa269259043c77ed8c2ddf1c4bf9142698657eaefc958103b

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