Malicious PDF — malware analysis report

Static analysis result for SHA-256 e56733c6435f1a57…

MALICIOUS

PDF

74.1 KB Created: 2021-01-24 06:41:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 6858c53317dd4eb5c9981c09e96a7183 SHA-1: 68a30b6bb778e710ce4bda3690c1bfafc6c79064 SHA-256: e56733c6435f1a57b508026b826502bbe42e0d9dd7b141b3bfbac053d073f292
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/123?utm_term=pennsylvania+emergency+management+spokesperson PDF link annotation
    • https://movadopudi.weebly.com/uploads/1/3/0/9/130969115/f0afca9631e917.pdfIn PDF document text
    • https://cdn.sqhk.co/gemadaruvow/ZOig3sa/baby_in_womb_week_by_week_size.pdfIn PDF document text
    • https://site-1171534.mozfiles.com/files/1171534/wapekabamod.pdfIn PDF document text
    • https://site-1257475.mozfiles.com/files/1257475/jopodejimofeliloz.pdfIn PDF document text
    • https://site-1250509.mozfiles.com/files/1250509/adobe_photoshop_express_android_4__0.pdfIn PDF document text
    • https://rinavufapakoto.weebly.com/uploads/1/3/4/4/134460237/bba3cf3.pdfIn PDF document text
    • https://site-1177991.mozfiles.com/files/1177991/28821094029.pdfIn PDF document text
    • https://site-1177175.mozfiles.com/files/1177175/4321901876.pdfIn PDF document text
    • https://site-1168170.mozfiles.com/files/1168170/74720202440.pdfIn PDF document text
    • https://site-1168389.mozfiles.com/files/1168389/wezufusigexunusajubid.pdfIn PDF document text
    • https://mebifexet.weebly.com/uploads/1/3/1/3/131381374/ladiwabirodo_xizovixixe_ximif_jikodola.pdfIn PDF document text
    • https://cdn.sqhk.co/nafolekuge/VKBos42/63174169815.pdfIn PDF document text
    • https://site-1178336.mozfiles.com/files/1178336/wiputamaw.pdfIn PDF document text
    • https://cdn.sqhk.co/xafemepino/3eRvKEX/pa_archery_black_bear.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/bisiku/audi_a6_avant_2016_manual.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_off0000e2e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E1 5480 bytes
SHA-256: d9ce2103f3b40bce7bcfd59a25e32cae0e329ad12fa8797d07dfbd2a26250747
font_01_sfnt_off0000f588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF588 11112 bytes
SHA-256: 385d095dfcf12d5ccfc5fc530588747d9749cecebd8ee2d9d7aeb48fb5cf2333