Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e77a10183687a2b…

MALICIOUS

PDF

45.9 KB Created: 2021-06-01 05:26:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 89abf5dd5771010700ec851bb608bf7d SHA-1: 00fc2c80444212f64ef081a1ca8fd8f5e13f321f SHA-256: 2e77a10183687a2b3726c74c4fd0bd56dde316589fbb6a290a3e6452932baf8e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free game hacks' or currency. The primary lure URL is https://netcdn.xyz/app/431946152/how-to-get-free-2021-robux-on-roblox-game-hack. This indicates a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs and the nature of the lure suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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://netcdn.xyz/app/431946152/how-to-get-free-2021-robux-on-roblox-game-hack In PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/commands-for-roblox-free-rubux_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/1-million-robux-game-pass-free_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/roblox-all-gamepasses-free-script_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/free-robux_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/free-obey-roblox_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/generate-robux-for-free-with-no-downloading-games_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://oak4x4messinias.gr/wp-content/uploads/fsqm-files/catalog-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off0000548c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x548C 25212 bytes
SHA-256: 8524e6464edeb4887ef672c464b263a68b90f7aea30ee1035c702016eb4ab69c
font_01_sfnt_off00008f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F68 18756 bytes
SHA-256: c294d6785818c04ff1fd0e1d064e1b076bcf9f825c4918650fc1ea45cbfed119

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