Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ed61c58d8c1f49…

MALICIOUS

PDF

72.7 KB Created: 2021-02-28 10:43:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 86423541467cc50c6d9639570225793a SHA-1: 5beb99cb53ac0ec1b323bd49c870e78b38af3133 SHA-256: 48ed61c58d8c1f49dbd2b56f682dd1d4d98926ef6ccdc25c6769428a0cd6eca7
126 Risk Score

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://nipisod.ru/award?keyword=lincoln+pro+mig+140 PDF link annotation
    • http://jasazotinalol.mygamesonline.org/finapilewoxij.pdfIn PDF document text
    • http://wibusutozojoz.iblogger.org/concierto_aranjuez_piano.pdfIn PDF document text
    • https://cdn.sqhk.co/gunonutib/Ejfajej/mahjong_tiles_game_free_download.pdfIn PDF document text
    • https://mobofapewapo.weebly.com/uploads/1/3/5/3/135399527/dojeleke_misobas.pdfIn PDF document text
    • http://mutujejeturuduf.medianewsonline.com/pilulekixifuroxuzowow.pdfIn PDF document text
    • http://tonedomopoja.scienceontheweb.net/can_a_highlander_hybrid_tow_a_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/Igigc3M/8382947063.pdfIn PDF document text
    • https://mijuzitomos.weebly.com/uploads/1/3/4/6/134662295/mijewaput.pdfIn PDF document text
    • https://vowabogebem.weebly.com/uploads/1/3/0/7/130775978/tetukeme.pdfIn PDF document text
    • http://lupelisizi.medianewsonline.com/how_did_positive_psychology_start.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/hbPhemG/wadunegovuwiroxebotofu.pdfIn PDF document text
    • https://cdn.sqhk.co/setawigiz/zjgdCIQ/diskdigger_photo_recovery_download_app.pdfIn PDF document text
    • https://sezowizubuv.weebly.com/uploads/1/3/0/8/130874308/desiwizekor.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/wizitifowubux/canopus_instruments_dc_isolating_amplifier_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/catching_fire_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/mexatejetizevizobasebavon.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/tazezurobibazaf.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_off0000e24f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE24F 5088 bytes
SHA-256: 8db32e8c732f73e45fca4bb649bd05745fb4425a9be93c1be08b64f9193814e3
font_01_sfnt_off0000f39f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39F 9860 bytes
SHA-256: 2eac211f0a6d0664ba28ba10843d07dbb59fa25be69b54a7778bd352e3ad327d