Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d7d51984df7ee87…

MALICIOUS

PDF

74.9 KB Created: 2021-02-27 02:56:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 025af613ba1c2a2596024b5f15907075 SHA-1: dd26140dc3284bd06a97d1aa23ae7ed1031289bb SHA-256: 1d7d51984df7ee871fcf503574d3e143b5d4944823805a4a753628fbbf977b88
96 Risk Score

Malware Insights

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

The file is identified as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. 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 structure and embedded URI suggest it's designed to exploit users through a phishing lure.

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/aws?utm_term=audre+lorde+quotes+community PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4498971/normal_601d84b2af94e.pdfIn PDF document text
    • https://cdn.sqhk.co/fakineduxafe/iaf9Nig/21344240048.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/igWLshf/20320660446.pdfIn PDF document text
    • https://cdn.sqhk.co/gujuvizaja/jjgjfc5/realm_grinder_artifact_builds.pdfIn PDF document text
    • https://cdn.sqhk.co/xolanikipiz/bifHjcE/coviar_dining_room_table_and_chairs_with_bench.pdfIn PDF document text
    • https://cdn.sqhk.co/venifirub/P0hijjF/how_do_i_repair_my_leather_car_seat.pdfIn PDF document text
    • https://cdn.sqhk.co/wanazofemuvu/dhbigOA/rpg_sound_mixer_download_cracked.pdfIn PDF document text
    • https://cdn.sqhk.co/boxepupovemu/VicL4ge/4386288952.pdfIn PDF document text
    • http://bomaduworofa.medianewsonline.com/diablo_2_armor_runewords_by_rank.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453741/normal_60397e5e3e370.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/xupimaral/pre_and_post_testing_in_sport.pdfIn PDF document text
    • http://pasufok.rf.gd/rca_rcr3273r_universal_remote_codes.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/collage_maker_for_laptop.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_off0000eab2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB2 5092 bytes
SHA-256: 769cd6ff0d98867ab43a968ede4902862c8f94ab578b3ecbe5bb37ad3cce07fb
font_01_sfnt_off0000fbf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF4 10320 bytes
SHA-256: ee09343e6d1563b0ef4beb953d765439cbb1c67251f1dba99000083893fa6486

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