Malicious PDF — malware analysis report

Static analysis result for SHA-256 2375768ab972a874…

MALICIOUS

PDF

68.3 KB Created: 2021-02-16 18:40:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 575ba9bbeb417f47805e0f13b781ce01 SHA-1: e0a90a4e37703c7e14c01fe81136028f4e962413 SHA-256: 2375768ab972a874df8c92b0124fcb3448becef10556cd1ee25198afdacbcd29
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake encrypted/secure-document view lure high SE_ENCRYPTED_DOC_LURE
    Document claims to be an encrypted or protected file that must be opened through a 'secure view' link, and the action link uses deceptive infrastructure. This is the secure-document credential-phishing carrier: the page imitates a secure-mail / document-cloud gate while the link leads to a harvesting site. action link to abused redirector.
  • 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://jacksth.ru/wix?keyword=webelos+den+leader+guide+2016+pdf+download PDF link annotation
    • https://kodavagimiwebod.weebly.com/uploads/1/3/5/3/135346487/9484385.pdfIn PDF document text
    • http://idealica-ufficialeitalia.website/sniper_gun_3d_hitman_shooter_mod_apk92nxo.pdfIn PDF document text
    • http://com-signto2.xyz/befabusezepuwapo46wyz.pdfIn PDF document text
    • https://jitolubupiloz.weebly.com/uploads/1/3/4/6/134637312/27329.pdfIn PDF document text
    • https://zipelademijup.weebly.com/uploads/1/3/4/0/134017001/winitoveseriwep_dotigodavu_rexofa.pdfIn PDF document text
    • http://weinmvc.net/spaceflight_simulator_full_version_mod_apk_android_1ib60m.pdfIn PDF document text
    • https://jivowewowigopap.weebly.com/uploads/1/3/1/6/131606746/1359532.pdfIn PDF document text
    • https://bepirujeli.weebly.com/uploads/1/3/1/8/131856565/mijagi_wixaparopozug.pdfIn PDF document text
    • http://bullbananavannaone.xyz/983400780339hb4l.pdfIn PDF document text
    • https://cdn.sqhk.co/bimonabozo/nicBGif/54844988773.pdfIn PDF document text
    • http://blacklaser.ru/48495485011zmok4.pdfIn PDF document text
    • http://youralteragoods.com/283410598110za5l.pdfIn PDF document text
    • http://puwaxevajineluk.iblogger.org/free_addition_worksheet_for_kindergarten.pdfIn PDF document text
    • https://cdn.sqhk.co/tokafumotebi/lxRhfgc/walmart_money_card_text_balance_number.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jurolabadujo.rf.gd/kosisasixalubefo.pdfIn PDF document text
    • http://webewogugesuwus.rf.gd/b_pharm_application_form_2018_tamilnadu_government.pdfIn PDF document text
    • http://rovujanoro.epizy.com/anime_slayer_for_ios.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_off0000c8f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8F3 5936 bytes
SHA-256: 89a5c70a31966b7d6d4a367d91a1e4f7de913dc25bdcddb36283c934a9ad310f
font_01_sfnt_off0000dd47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD47 11420 bytes
SHA-256: 9452dd8e6ba6bc7c3c3e3bcefadb68d758e16c9a630ec30052936247a49c26a7