Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e648e46c143686a…

MALICIOUS

PDF

80.2 KB Created: 2021-03-05 02:40:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: c76df9f36f5d1731e53f3056cd85d16e SHA-1: dd692abfb0ce12d0752f27a4bc3724052545e98a SHA-256: 0e648e46c143686a7ac8d1919820fa70bf48c2c45fdae61453beb4ddbc2626f4
126 Risk Score

Malware Insights

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

The PDF contains multiple external URIs and is flagged by ML classifiers and ClamAV as malicious phishing content. The document body, though partially corrupted, suggests a lure related to appliance repair, which is a common tactic for phishing campaigns. The presence of numerous links to potentially malicious domains indicates an attempt to redirect users to credential harvesting or malware download sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://mezovuduw.ru/award?keyword=how+do+i+reset+my+lg+top+loader+washing+machine PDF link annotation
    • http://tulavesew.getenjoyment.net/operations_management_heizer_chapter_10_ppt.pdfIn PDF document text
    • http://bnatural.space/joredejusupanat08frq.pdfIn PDF document text
    • http://berkeciftci.net/tiradm2r05.pdfIn PDF document text
    • https://cdn.sqhk.co/rinugezig/ghAhcWF/kodubugidirorusivovojox.pdfIn PDF document text
    • http://vabuletarikinil.iblogger.org/challan_form_no_280.pdfIn PDF document text
    • http://kinorio5.xyz/de_re_militaritg0i8.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/ihdhiKM/bingo_saturday_night_perth.pdfIn PDF document text
    • http://profmaster74.ru/dugajesesakebirime8s1ry.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pelubameta.epizy.com/80842041088.pdfIn PDF document text
    • http://togipumenotu.epizy.com/best_whatsapp_status_ever.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3763e3fb-940c-4b39-9884-ec41ae0d66b8/the_one_kiera_cass_series.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/fafaledavekajulave.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/anteversion_y_retroversion_femoral.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/ihip_bluetooth_earbuds_pairing.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/green_greens_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a539f5bd-2e65-4413-9623-424ba6983ba8/fezeweb.pdfIn PDF document text
    • http://mijovutotukedes.onlinewebshop.net/how_to_put_on_the_full_armor_of_god_daily.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_off0000fd14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD14 5644 bytes
SHA-256: 043f6bba4556e5a25a867ca9e8ab116252f3c8ce0aa6c777975b3f318fc41bf6
font_01_sfnt_off0001102a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1102A 10504 bytes
SHA-256: cda92ed6551c0473b2663ea111f3220baa236bf8a037ecdb3c4948c134497f17