Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43a1a9f44dd7c74…

MALICIOUS

PDF

34.5 KB Created: 2021-07-07 22:41:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 597d83d130d764fbd64bf614b5b12298 SHA-1: 61c98b0d129bfcbeb3d462ddeeacce564899685d SHA-256: e43a1a9f44dd7c74e31d10456b73c8b48fc3f50c5d59e54c5f2965c259368149
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and Robux to trick users into clicking malicious links. The primary link, http://netcdn.tw/app/479516143/free-minecraft-games-for-kids-game-hack, is identified as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

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/479516143/free-minecraft-games-for-kids-game-hack In PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/how-to-get-free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/free-roblox-girl_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/how-to-hack-accounts-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/free-robux-for-kids-easy_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/how-to-get-free-robux-from-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/free-working-roblox-exploits_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/how-to-get-free-robux-with-inspect-element-2021_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/how-to-get-free-stuff-on-roblox-catallog_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.mtshasyimasyari.com/__statics/gudangsoal/files/coin-master-apk-hack-3527_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_off00003383.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3383 22000 bytes
SHA-256: e1610a44d1b3b5bf63dc5233bd542b098c4e91384895c963d09916f5fb51c3d6
font_01_sfnt_off00006400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6400 18432 bytes
SHA-256: fce0cee9bb026e9b658c5a6be084441bf5d333caf380f9a351f6fa516673a190

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