Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5d1d38426fb45c5…

MALICIOUS

PDF

76.8 KB Created: 2021-03-04 12:26:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 52b0ea1f8ee3709382d04ffba86f07af SHA-1: 9947cdee47a1e5bc1d89109dc7072919197c9c27 SHA-256: f5d1d38426fb45c59feb3adf5111e1935bf2fc524825f5ed765027a8c3080683
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/123?utm_term=quiero+tener+cu%25C3%25B1ados+que+no+me+%2528caer%2529+mal.+quizlet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4371240/normal_6019df87cef70.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472793/normal_5fd099cb0151d.pdfIn PDF document text
    • https://cdn.sqhk.co/puxolika/j4YyMje/little_pony_birthday_cake_singapore.pdfIn PDF document text
    • https://cdn.sqhk.co/sojowidaz/giizWhb/90430063549.pdfIn PDF document text
    • https://cdn.sqhk.co/fafujedajir/dzRjpRa/light_up_vanity_mirror_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/gufemazibafi/gLFWiXh/f_stop_gallery_apk_pro.pdfIn PDF document text
    • http://dewobazul.22web.org/28863540223.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/bihKpie/14570164636.pdfIn PDF document text
    • https://cdn.sqhk.co/xovinexesun/hc6fjbU/vavinepetelavijebekoxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472495/normal_6025894316d74.pdfIn PDF document text
    • https://cdn.sqhk.co/naforokafe/VeZ542F/20003994501.pdfIn PDF document text
    • https://cdn.sqhk.co/vufebevefo/XSGo9ih/80982949576.pdfIn PDF document text
    • https://cdn.sqhk.co/fafujedajir/ghhhcDJ/honeywell_barcode_scanner_price_in_bd.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/eQjijh7/83940225369.pdfIn PDF document text
    • https://cdn.sqhk.co/tavaxiwugo/hhwXja3/70224671015.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ea8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8A 5720 bytes
SHA-256: 53d360274c3dcf933a97da1ffccf98652e0fc1f6f644f0f31267a6cc84dbc3c8
font_01_sfnt_off0000fdbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDBD 11648 bytes
SHA-256: 26361475c4bbb68d183a94ba70e659e0d38cf34994dee63dd68287a36ef805da