Malicious PDF — malware analysis report

Static analysis result for SHA-256 1700972fef8ac315…

MALICIOUS

PDF

72.9 KB Created: 2021-03-02 02:32:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 896273e4d26b6a558bc2f7fd7b6daa27 SHA-1: 6917f58599790c0633cc6fb26f1d87aa7c891447 SHA-256: 1700972fef8ac315de4b302ea618c771455b4a7ca5370cbb4dc8c7a69793d90e
134 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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jottigo.ru/wix?keyword=root+tablet+china+apk PDF link annotation
    • https://cdn.sqhk.co/kogoruzojif/difeSHs/best_free_online_video_call_app.pdfIn PDF document text
    • https://cdn.sqhk.co/gogojelawov/ZicrhhI/vunaxorewopu.pdfIn PDF document text
    • http://rekabiwuxu.22web.org/bengali_song_zip_file.pdfIn PDF document text
    • http://keberumapup.22web.org/kojibe.pdfIn PDF document text
    • https://kenemujawov.weebly.com/uploads/1/3/4/6/134645985/zoxakejewuzisilidik.pdfIn PDF document text
    • http://vurupilinimini.iblogger.org/41667210942.pdfIn PDF document text
    • https://cdn.sqhk.co/jibenapola/8jjicji/25583543805.pdfIn PDF document text
    • http://jupomolitage.22web.org/is_how_to_train_your_dragon_4_coming.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fiwewenupod.epizy.com/95144816606.pdfIn PDF document text
    • http://rexawisoza.epizy.com/android_camera_eye_tracking.pdfIn PDF document text
    • http://wafogaz.rf.gd/csr_annexure_in_word_format.pdfIn PDF document text
    • https://s3.amazonaws.com/nafamaragisek/aviso_prvio_trabalhado_pagamento_reforma_trabalhista.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/bukejulufupovizutak.pdfIn PDF document text
    • http://bexituxupogetav.rf.gd/xapegepumulo.pdfIn PDF document text
    • http://xonifovozub.epizy.com/waxidezeba.pdfIn PDF document text
    • http://gedesopow.rf.gd/barsega_sawan_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD911 4956 bytes
SHA-256: 0db76f2ba2dcee3caeae3b1c775629d275d0791648e269d880295f82870ac92b
font_01_sfnt_off0000e9e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9E6 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000f273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF273 10612 bytes
SHA-256: cb0ed35d73e161bb7f9380f141a9d716c1c780f109bdd770f48d1e30b6554d90