Malicious PDF — malware analysis report

Static analysis result for SHA-256 2421e65dafb0a62d…

MALICIOUS

PDF

67.7 KB Created: 2021-02-15 22:48:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: baa103a1cd51dcfcad21f4498546e900 SHA-1: cb0b7b285c543dc3050c33520352dcc0a29010c4 SHA-256: 2421e65dafb0a62d6d7302e721708633ed946f0930fe6ae3b6b9928cc03caf5a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=harbor+breeze+remote+manual+a25-tx025 PDF link annotation
    • https://cdn.sqhk.co/vitikitema/jfvqifR/minecraft_games_for_free_on_phone.pdfIn PDF document text
    • https://jutifakakunule.weebly.com/uploads/1/3/5/9/135985430/0701b4f46c7f.pdfIn PDF document text
    • https://cdn.sqhk.co/tavaxikanabu/diCfjdr/shogun_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/MnXhaC3/mopisifime.pdfIn PDF document text
    • https://melazikadoxu.weebly.com/uploads/1/3/4/5/134594637/magenaxemakam-sojupive-lawebin-pomekub.pdfIn PDF document text
    • https://nubeboganiroj.weebly.com/uploads/1/3/1/3/131384383/loropixutetifuz.pdfIn PDF document text
    • https://cdn.sqhk.co/kewudomavave/jsshchg/68843716717.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493602/normal_5ffb976dbb05a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mutidulofof.epizy.com/20612931050.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/726675969.pdfIn PDF document text
    • http://jiwenufaxo.epizy.com/farmakologi_antasida.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/15116224930.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/rise_of_the_tomb_raider_mod_apk.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_off0000cea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA7 5300 bytes
SHA-256: 9dba76f8150c704b8e71fa99e5504aeee5b36385d70fb1feaf434001ba515fb3
font_01_sfnt_off0000e0ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AC 9740 bytes
SHA-256: b97c2df3e6aee77c0c9fa2015499322ac44d780d28025c8bfb8799c803ae4c67