Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d140e03d1610942…

MALICIOUS

PDF

105.6 KB Created: 2021-03-14 03:53:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 143505fd0179c212b0b63baad059a238 SHA-1: 0e5fa4e77c36dd277faae81976c4e5c1e3f7f41c SHA-256: 7d140e03d161094208e6e2a947baebb304d7772dfa620693489b6ad9b176763e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to a movie subtitle file, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/strik?utm_term=to.all.the.boys.i%2527ve.loved.before.2018+sinhala+sub PDF link annotation
    • http://nekalakizifefe.22web.org/the_emperor_s_new_school_episode_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401703/normal_5ff71c092b1af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380859/normal_60346d19dc1e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389570/normal_602d86235d561.pdfIn PDF document text
    • http://raisinshub.pro/how_to_replace_belt_on_bissell_powerforce_compactt1o5m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385011/normal_5fdeb209c4864.pdfIn PDF document text
    • http://olymp-trade.top/bolalerupekusotajagdb2.pdfIn PDF document text
    • http://kersita.space/26297174480ifkye.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401505/normal_5fc890ea9b2c5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480880/normal_6002164dbffad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489716/normal_60198012daede.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/xafaxotaful/natural_ways_to_pop_a_boil.pdfIn PDF document text
    • https://s3.amazonaws.com/fewifuwu/cch_crack_file_b_kha.pdfIn PDF document text
    • http://wojodiguf.rf.gd/92400599.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/kapivobuk.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/xojunosezaroxoribotunof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b003f307-90e2-4b94-be48-2ab018e97db6/how_to_read_lausd_report_card.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ffd4793-f17c-4ed4-86e0-275e79954611/how_to_tie_a_robe_in_front.pdfIn PDF document text
    • http://vovugezufined.epizy.com/all_video_er_apk_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/2009_international_prostar_warn_engine_light.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
    • http://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF176 5832 bytes
SHA-256: 1733ed0a0715a28ee7ce89ac032d0b2774e07f510e4cccc3f6ccd7abdc6c3cf7
font_01_sfnt_off00010519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10519 51052 bytes
SHA-256: 64a053384e3559eeb10a3e881926a5e229dc0bc85e47c1e55fb36f05b9c3a761
font_02_sfnt_off00016f24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16F24 11528 bytes
SHA-256: a6a25474a3fc009394c472e8b7fa1bcdedd3f7078b976658ad8d32fe1cedd71e

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