Malicious PDF — malware analysis report

Static analysis result for SHA-256 07953f501faba64f…

MALICIOUS

PDF

74.4 KB Created: 2021-04-04 00:58:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 924b6e7fa131f8df8463c08f742dfd7a SHA-1: 51c85c6509edaa3da5d278b34a1d2a69b6ae3f22 SHA-256: 07953f501faba64f01a533ff7968752d4f224692c84150110ba06176b90619a5
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the presence of external URIs suggests an attempt to download or redirect to a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/strik?utm_term=alaska+drivers+license+renewal+covid
    • https://cdn.sqhk.co/nopusixinid/Qhc3Kjg/bleep_button_download.pdf
    • https://cdn.sqhk.co/bemaxopig/chh78hf/nadubuwegeg.pdf
    • https://cdn.sqhk.co/jutalufelex/hCijmje/daily_cleaning_checklist_for_dental_office.pdf
    • http://zofugef.mypressonline.com/zoxojoponivejamutirikon.pdf
    • https://cdn.sqhk.co/sokodajep/jAzrgeA/answers_defensive_driving_course.pdf
    • https://cdn.sqhk.co/nalawanuxa/ja7UhdE/perfect_stealth_no_kills_mgsv.pdf
    • https://cdn.sqhk.co/ponesigis/aheOKfD/37330269068.pdf
    • https://cdn.sqhk.co/xotosobupis/fheY5je/animatronic_mod_minecraft_1._12._2.pdf
    • https://cdn.sqhk.co/xazururoxe/ogggfGQ/adventure_ball_game_free_download.pdf
    • http://kovatafob.mypressonline.com/bare_necessities_ukulele.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/poresi/90303358707.pdf
    • http://molujafit.atwebpages.com/15897169152.pdf
    • https://s3.amazonaws.com/zizene/how_to_use_a_garrett_ace_400_metal_detector.pdf
    • https://s3.amazonaws.com/fixararololu/can_you_use_5w30_in_a_lawn_mower.pdf
    • https://s3.amazonaws.com/xapidajovaji/the_linux_kernel_module_programming_guide_2009.pdf
    • https://s3.amazonaws.com/sazixipame/13960770679.pdf
    • https://s3.amazonaws.com/tometubufimopim/kewidifapamafomebevojuw.pdf
    • https://s3.amazonaws.com/vatosolikijike/bharti_axa_2_wheeler_insurance_claim_form.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6f5.bin
f14eefeea24626e396fe08364e719ef0358151c546b864477265aa518d134499
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F5 5136 bytes
font_01_sfnt_off0000f88f.bin
76df51d67cc630ffdb8d09435bf6a5c2a3d8cfa2f5a1dd9ecbf8955000e5982f
pdf-font-stream PDF embedded font (sfnt) at offset 0xF88F 10600 bytes