Malicious PDF — malware analysis report

Static analysis result for SHA-256 af3dbb17be51025c…

MALICIOUS

PDF

35.3 KB Created: 2021-06-27 08:08:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b3a01e417da46b420d03fede09d4d4d4 SHA-1: aca38dde53c93e565dff7fe70d5c86ce7cc620c4 SHA-256: af3dbb17be51025c2fd7a064c6964ef478a0255f0842e1baded1b2b5819bcda1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free Robux' to lure users. The primary redirect URL is http://netcdn.co/app/431946152/visenya-roblox-hack-game-hack, which is associated with known malicious redirector activity. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/visenya-roblox-hack-game-hack In PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/minecraft-free-version_GM479516143.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/robux-hack-facile_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/comment-hacker-le-jeu-roblox_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/roblox-com-free_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/addget-free-roblox-robloxcom_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/pubg-8-uc_GM1330123889.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn 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_off000032a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A2 22388 bytes
SHA-256: 4c059a12233d3da33980035fd22b78ec9b468b777df5949d3dd5da419f8d9242
font_01_sfnt_off00006483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6483 19088 bytes
SHA-256: 37e200390100a9db46526a569ee813aaba359313bcd7ab06be8517cf88adc323

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