Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce69c98c70c99d8f…

MALICIOUS

PDF

34.3 KB Created: 2021-07-09 17:14:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 86562cf800c417e8e4f6699280bf70f1 SHA-1: 216c960d84ae44820fa7f7d41c356ee4f49908bd SHA-256: ce69c98c70c99d8f4969d3efde8c9f776ac47136e449f2a07643040f1e05f25f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link disguised as a 'free generator / game hack' lure, which is identified as a malicious redirector. This link, http://netcdn.tw/app/835599320/free-tiktok-likes-generator-game-hack, is designed to lead users to potentially harmful content. The presence of multiple similar links and the ML classifier's high confidence score indicate a malicious intent to redirect users.

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.tw/app/835599320/free-tiktok-likes-generator-game-hack In PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/how-to-get-free-robux-redeem-code-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/robux-and-tix-hack-no-survey-no-download_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/robux-hack-tool-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/how-to-get-free-schrt-in-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/free-robux-no-human-verifivation-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/roblox-hacked-to-rape-a-7-year-old_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/free-unredemeed-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/how-to-make-free-shirts-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/how-to-hack-roblox-games-using-cheat-engine_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/roblox-free-clothes-download_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/fake-codes-to-enter-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/speed-hack-mac-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/roblox-theme-park-tycoon-2-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/how-to-get-any-roblox-item-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/robux-hack-ios-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man4banjar.com/__statics/gudangsoal/files/roblox-cheat-engine-fix_GM431946152.pdfIn PDF document text
    • https://hackernoon.com/tiktok-free-fansIn 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_off00003284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3284 22352 bytes
SHA-256: 1d74fef97be974d91f5d6b50fff91dd744ce279249e15475218b1e884270d959
font_01_sfnt_off00006426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6426 17972 bytes
SHA-256: 618fba9bb23b96ed94c7fbb241629ee71f2b54e5c39ad0cd0b25302c91d286cb

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