Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b3ecf59e6226b27…

MALICIOUS

PDF

71.1 KB Created: 2021-03-04 02:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 19ff7a5a99370ea04c39f37dd2b64af8 SHA-1: 62827c760bf3fa509b643f1f9b20d823469e153d SHA-256: 1b3ecf59e6226b27d7ca72398425538b140d2c3a33380735efcee695a7477bef
186 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ponafet.ru/wix?keyword=grey+maiden+warrior PDF link annotation
    • http://lifeshop.pro/lifetime_54_in-ground_crank_basketball_hoop_reviewsm3jlu.pdfIn PDF document text
    • http://wowitaly.pro/880946139401041l.pdfIn PDF document text
    • http://tidirakozodawon.getenjoyment.net/how_to_create_an_app_for_dummies.pdfIn PDF document text
    • http://reactivaperu-2020.com/50742904262nydag.pdfIn PDF document text
    • https://luvodufugatese.weebly.com/uploads/1/3/4/8/134893210/77bd02de4.pdfIn PDF document text
    • http://xexogafuko.22web.org/surat_al_kahfi_ayat_1-_10.pdfIn PDF document text
    • https://cdn.sqhk.co/nifodotiriru/gd2ysig/tiny_archers_2_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/jefapukawore/xZhijen/51410987693.pdfIn PDF document text
    • http://techanomic.com/lokisapnsvlj.pdfIn PDF document text
    • http://xukazuleje.iblogger.org/stringbuilder_vs_stringbuffer_android.pdfIn PDF document text
    • http://bajuzupur.22web.org/rufimikujamaxeko.pdfIn PDF document text
    • https://cdn.sqhk.co/doporaba/ijdcjiP/nodokeximaramuxodanixok.pdfIn PDF document text
    • https://cdn.sqhk.co/jabezoxujo/fKkQidY/traffic_racer_2020_para_hilesi_yukle.pdfIn PDF document text
    • https://cdn.sqhk.co/lixejudazeza/gjdgdZo/82619200873.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://levigorofelo.rf.gd/wofatemulavumibebubefaki.pdfIn PDF document text
    • http://wibenuke.epizy.com/analytical_mechanics_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC1D 4988 bytes
SHA-256: 61ead46ecaf6b105d3f48172b823b4f3931237242eba9135426186ee8aab48fd
font_01_sfnt_off0000ed14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED14 10032 bytes
SHA-256: 9b9bbeaed121d1678a3e8012ec3972daa4c0141c28d9ba1a1782839112453d1d