Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a2b1d937152ce38…

MALICIOUS

PDF

73.5 KB Created: 2021-03-11 11:20:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1e679d03de392d338421196d5a859298 SHA-1: d4cf46661e51da0d10cd32771de3a77423b1d694 SHA-256: 5a2b1d937152ce38cce664e7db831e6a157191aa886b5faf1d022aadcfe7de06
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that directs users to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded URL is the primary indicator of compromise, suggesting an attempt to trick the user into downloading a payload.

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://gimoguvi.ru/wix?keyword=emulador+gba+apk+uptodown
    • http://vigorutijiwek.22web.org/after_we_fell_book_summary_spoilers.pdf
    • http://bojidodug.iblogger.org/what_is_netflix_business_strategy.pdf
    • http://iciapp.xyz/kenedezivepuvadonirij6crw.pdf
    • http://bodyita.space/what_is_a_key_theme_of_rules_of_the_game_brainly8hyek.pdf
    • http://rometolipopi.iblogger.org/what_is_an_aa_meditation_meeting.pdf
    • http://dithetsen.xyz/vokotimatobuzikadopelui4l29.pdf
    • http://naderuromopuru.22web.org/notepad_for_redhat_linux.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/316967d8-9ff4-4d21-8298-ead6566ce5c9/68300555677.pdf
    • https://s3.amazonaws.com/vatosolikijike/rubizaw.pdf
    • https://uploads.strikinglycdn.com/files/b7f95da0-85b8-4f52-b93a-145e0bff0fb3/medialink_router_customer_support.pdf
    • https://uploads.strikinglycdn.com/files/4b9566da-3342-4bc7-87c5-bc63c2a8ca2e/96831577914.pdf
    • https://uploads.strikinglycdn.com/files/da1dab2b-654a-4f17-93fa-5ce3c62fbea4/obdlink_lx_iphone.pdf
    • https://uploads.strikinglycdn.com/files/6443c804-44fe-4b51-aaa9-9f49dfd52ac1/tecnicas_terapia_cognitivo_conductual_para_ansiedad.pdf
    • https://s3.amazonaws.com/turip/photo_cutting_and_pasting_application.pdf
    • https://s3.amazonaws.com/rodiligarexo/free_printable_fraction_worksheets_for_3rd_grade.pdf
    • https://uploads.strikinglycdn.com/files/b262a806-f65d-4eb6-8631-13d528720947/the_gnostic_bible_free.pdf
    • https://uploads.strikinglycdn.com/files/0b49250c-b3b4-42a1-8e53-3723c0f78868/vampire_diaries_quiz_who_is_your_boyfriend.pdf
    • https://uploads.strikinglycdn.com/files/79af7803-d066-4910-b49d-06e19544ca41/lepomisuwamogubolavod.pdf
    • https://uploads.strikinglycdn.com/files/83bfa3ba-5ee8-45cf-be10-57b5f8940b15/88031904887.pdf
    • https://uploads.strikinglycdn.com/files/c2800cb6-40ee-4e3e-93d3-dfbd6064ed5a/dragon_ball_manga_release_date.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_off0000e348.bin
d7afd53095ef918d2a5e0e0f6bb2b7093d708b02f91d7340c3cce527ec76c937		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE348 5356 bytes
font_01_sfnt_off0000f575.bin
8249e05f81f5605039ee1b7f5ad0212aa27ac2a046f72b1b0982a260f4e6b4a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF575 10448 bytes

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