Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd89c150599f18f9…

MALICIOUS

PDF

67.2 KB Created: 2021-02-21 15:04:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0dcf8b5a3e8dadf00c3418eb84a175a0 SHA-1: 59491cca4743396c9345d05c554df0574ce169b5 SHA-256: bd89c150599f18f97f96541156227ea78a45e81dd2bf2dcf2c8799e0be641c15
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 0.9998

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://baarspo.ru/wix?keyword=bazaar+apk+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4374364/normal_6001ce6d33ef5.pdfIn PDF document text
    • https://cdn.sqhk.co/gunuzuli/gfiguOh/talking_tom_candy_run_mod_apk_revdl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450424/normal_5ff2887636da6.pdfIn PDF document text
    • https://cdn.sqhk.co/sewenajete/dMKjOBS/64953025525.pdfIn PDF document text
    • https://cdn.sqhk.co/vewimidipiv/cjMjit8/beard_styles_for_round_face_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419433/normal_6020639b63be0.pdfIn PDF document text
    • https://cdn.sqhk.co/silutoge/6sgejht/95430747708.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453108/normal_5fe4ce38717c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466661/normal_6006a2b3e156a.pdfIn PDF document text
    • https://cdn.sqhk.co/wujozuzewed/gioCW8r/juego_de_drones_para_ps4.pdfIn PDF document text
    • https://cdn.sqhk.co/wevafofed/haibggd/mad_zombies_zombie_shooting_offline_game.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/laginekux/jefixubesevakojugiga.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/lagu_bts_idol_8d_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/ponudarovenojisofobot.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/weekly_meal_plan_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/bipepezuwed/22250692796.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/74349054648.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_off0000caec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAEC 5032 bytes
SHA-256: 4250cd20b2480591bffb4487ead7b735e17f296a1229d9b94238ad3f7abc1fbe
font_01_sfnt_off0000dc34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC34 10472 bytes
SHA-256: b1bdee40a12a43e2b8eefc154586b4b9e9a7d1e4c094cd44ef28b4cca8c8ca59