Malicious PDF — malware analysis report

Static analysis result for SHA-256 53819f893c73c1d0…

MALICIOUS

PDF

75.2 KB Created: 2021-02-18 15:39:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 24e79debaa424f30929020927c3bcef6 SHA-1: 593ac6abafc38d9040a23da3d2d04566840a8bbb SHA-256: 53819f893c73c1d007d523baa7a3cc62ac882a587485bc82ba083143898fffe3
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-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://maypoin.ru/123?utm_term=the+curated+closet+review PDF link annotation
    • http://trujillostacoshop.com/any_further_information_to_support_your_application07ekw.pdfIn PDF document text
    • http://indital.fun/62628107057kpycc.pdfIn PDF document text
    • https://cdn.sqhk.co/lojeliju/6ICzhhk/dakujoxasolejebomudunaxej.pdfIn PDF document text
    • https://cdn.sqhk.co/zukuxenopo/didTZji/swing_low_sweet_chariot_chords_in_c.pdfIn PDF document text
    • https://cdn.sqhk.co/temirikuji/W4ibjgb/roveseminifotukasixure.pdfIn PDF document text
    • http://firstdoctor.xyz/cahier_de_journal_primaireqfvff.pdfIn PDF document text
    • https://cdn.sqhk.co/sesexibanobu/eTLtwjf/yellowstone_full_cast_season_3_episode_9.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/ijQjjjj/tiger_shroff_ka_song_video_gana.pdfIn PDF document text
    • https://cdn.sqhk.co/sojetaji/VG8lRYT/mexidurepazu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474979/normal_5fc7e4fd2cfea.pdfIn PDF document text
    • https://cdn.sqhk.co/tezasevimab/Tm8gdbM/my_verizon_nexus_uninstall.pdfIn PDF document text
    • https://cdn.sqhk.co/guposidum/chfoNo4/dikadixewutufefokugatoku.pdfIn PDF document text
    • https://cdn.sqhk.co/jirowolad/fljihxZ/37066557584.pdfIn PDF document text
    • https://cdn.sqhk.co/wubofuse/cqh13n7/xunufope.pdfIn PDF document text
    • https://cdn.sqhk.co/vomuvojovi/gcxjejf/dota_underlord_guide_indonesia.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dabixuri.rf.gd/free_tv_guide_app.pdfIn PDF document text
    • http://bibalaluroxute.epizy.com/76726869255.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_off0000eae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE5 5128 bytes
SHA-256: 3f8f34f1de6530aa8bdde51adafcb0fa8c17210ce9a99711d86f450408da0411
font_01_sfnt_off0000fc61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC61 10324 bytes
SHA-256: 39929e51ad6bef70be1a4bfb7e5fe54d7724be09a408ff532ee2e99e52d906d4