Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c6da623b762094…

MALICIOUS

PDF

79.8 KB Created: 2021-04-30 01:24:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: a83afc9391145cf8818d1774f6c172b3 SHA-1: 2cb44306bfb664761c81ae6ecbe6ea9e886d8461 SHA-256: 02c6da623b762094c52a4f26da0d9f22c38d91db88d4eb3329bd1ea0c0f36042
126 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to 'lozipotod.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'Diagrama de clases objetos' to entice users to click the malicious link.

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://lozipotod.ru/strik?utm_term=diagrama+de+clases+objetos PDF link annotation
    • http://dom-bita.org/713878557589fvc3.pdfIn PDF document text
    • http://cosmostil.top/58235538867t1azb.pdfIn PDF document text
    • http://dejijesumewir.22web.org/bestseller_books_2020.pdfIn PDF document text
    • http://pitushok.space/15230669588elfbo.pdfIn PDF document text
    • http://lnstagram-copyright-supports.com/yowhatsapp_latest_version_linkdik5n.pdfIn PDF document text
    • http://sandwichhq.club/37869149650wdrph.pdfIn PDF document text
    • http://onlyforyou.space/data_warehouse_lifecycle_toolkit_freef3uzc.pdfIn PDF document text
    • http://fishland.store/2808443604754xd3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/44d23c19-c20e-4d4a-8af2-2d524ff7ff76/15614958646.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/wetomasowuzajagagawejivaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4612e27a-64df-4a1c-8727-149e5949361f/28450040624.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/game_boy_classic_games.pdfIn PDF document text
    • http://bonitadobizaw.epizy.com/95125653124.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/917fe541-e0d0-46c3-a33f-a58f1ce9a5e0/kenazabulanuguwo.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/wararumowijimuzo.pdfIn PDF document text
    • http://sewoxoxitif.rf.gd/94090701516.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/how_to_thread_a_white_sewing_machine_model_1510.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e84879ea-a404-48cf-a4e3-6c02a8cc2f50/tavafugomax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15f2edaf-01f9-45c3-a5cf-a41b24a2c274/2275841269.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_off0000f56e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF56E 5476 bytes
SHA-256: 61c42afd6365554cf526356cc3a399c6dc7d06f596775918e513fe8b447394bb
font_01_sfnt_off000107f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107F8 12804 bytes
SHA-256: 99c46b4bfd3595ce34e55ebc393923ed324fd1541ea4ddf0f399061d22b25919

Open this report in the interactive analyzer, or submit your own file for analysis.