Malicious PDF — malware analysis report

Static analysis result for SHA-256 b29d9b01913f5aa6…

MALICIOUS

PDF

70.9 KB Created: 2021-02-21 00:29:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4463d395e3ea079923018eb746a6ff9a SHA-1: de28a10073581818e386ef71ab9e40f00d13b8c1 SHA-256: b29d9b01913f5aa615f388e7cb94e5ffabd5f8e67a98f565cdb2d8c1bf217a0f
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-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://jacksth.ru/wix?keyword=displacement+vs+distance+worksheet+answer+key PDF link annotation
    • http://romeita.space/drunvalo_melchizedek_serpent_of_lightg4gb5.pdfIn PDF document text
    • http://fruitslope.online/duzaxepakpoucx.pdfIn PDF document text
    • http://teasmall.space/quiz_planet_game_on_facebook0mtbq.pdfIn PDF document text
    • http://xsafak.com/gaming_intro_sound_effects_downloadhgc6p.pdfIn PDF document text
    • http://idealica-itufficiale.website/nuvixuzesuresec3bqq.pdfIn PDF document text
    • https://cdn.sqhk.co/xamubana/AQtjiib/snapping_turtle_eggs_hatch_time.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/16052115613.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/partnership_appropriation_account.pdfIn PDF document text
    • http://kedokonox.rf.gd/fake_newspaper_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/esl_worksheets_present_simple_vs_present_continuous.pdfIn PDF document text
    • http://lapabogi.rf.gd/android_1_games_hungry_shark.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/bhoot_fm_audio_story.pdfIn PDF document text
    • http://puwomuf.rf.gd/bisisoga.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_off0000ccc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC5 5416 bytes
SHA-256: 900ad3915ae24838b1b779aff5c6e033098a51c3a58eab381aaac93ef5695902
font_01_sfnt_off0000df11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF11 9688 bytes
SHA-256: db16863c798bbe684e4e8ec128fa5c3232b72c7a16b1a476bc8c98f4530a021b
font_02_sfnt_off00010027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10027 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3