Malicious PDF — malware analysis report

Static analysis result for SHA-256 11541380a8c68237…

MALICIOUS

PDF

75.2 KB Created: 2021-04-01 13:47:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 0d8e86f74ae5642194b40e47e81dc15e SHA-1: b9b47595f4f16d5ebaddb4552675e3463c6c7c8f SHA-256: 11541380a8c682376c50b6d632bbb835d8bcc05b73f30fe87b57292cbe665f09
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan distribution attempt. It contains numerous external URIs, with a primary suspicious URL being 'https://dugedepap.ru/wix?keyword=modaco+superboot+apk', likely serving as a lure for the 'modaco superboot apk'. The document's structure and embedded links suggest it's part of a link farm designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://dugedepap.ru/wix?keyword=modaco+superboot+apk PDF link annotation
    • https://cdn.sqhk.co/tezofugowura/cz5idje/33439372971.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382972/normal_5ff8193feb361.pdfIn PDF document text
    • https://cdn.sqhk.co/gapebeve/igenij5/52736854991.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378852/normal_602d333dcc359.pdfIn PDF document text
    • https://cdn.sqhk.co/moxawitab/geviigc/10223018485.pdfIn PDF document text
    • http://nadixonoju.iblogger.org/21430255192.pdfIn PDF document text
    • http://dasiwujupuna.sportsontheweb.net/active_and_passive_voice_quiz_test.pdfIn PDF document text
    • https://cdn.sqhk.co/xamowizaso/cTRxdgd/arrow_shooting_target_archery_games_for_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472760/normal_605302f10cab8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451575/normal_603be60d11ad6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467298/normal_605876c359961.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459629/normal_600ed3c8364bb.pdfIn PDF document text
    • http://rajukilodagoje.mygamesonline.org/fimolerite.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496170/normal_5ff147a043585.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pobevezegudam.epizy.com/zujepatalemupe.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/chronicles_of_narnia_2_full_movie_free_online.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/78975979604.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE618 5244 bytes
SHA-256: 67c83ea1d28faee9e711cb28283dc66dfac41b9871118e4374d086b05c1f8ed7
font_01_sfnt_off0000f802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF802 11428 bytes
SHA-256: e85b0852a6cceb216134c5beb9937b73993f54ab7f93d9956211dc0610d319a9

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