Malicious PDF — malware analysis report

Static analysis result for SHA-256 68532d43abccf326…

MALICIOUS

PDF

35.2 KB Created: 2021-07-03 20:14:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: f1cf1774c45c6fe91c520f28b8d75499 SHA-1: b49a7de3de1c350b2187b6cb9e8c9516f78f1a5b SHA-256: 68532d43abccf326b93aa87bb09376d4dacad4cc27b4f181ff402c8425bb396f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to known malicious redirector infrastructure, specifically advertising a 'game hack'. The document body and heuristics indicate a lure for free game hacks or generators, aiming to trick users into visiting the malicious URL. No scripts were extracted, but the presence of malicious links and the lure strongly suggest a phishing or social engineering attack.

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/minecraft-free-no-download-game-hack In PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/roblox-free-remdem-codes_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/roblox-broken-bones-iv-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/free-tiktok-fans-and-likes_GM835599320.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/www-rubux_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/roblox-money-hack-no-survey_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/jailbreak-script_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/roblox-robux-hack-no-survey-no-password-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/roblox-prison-life-hacks-download_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/inject-hack-robux-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
    • https://e-learning.mi-baabussalaam.sch.id/__statics/gudangsoal/files/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003479.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3479 22420 bytes
SHA-256: ba08fc6ac017d74db0d432178d28929d02c3184f6a923d8ee3f6c84472ec4920
font_01_sfnt_off000065fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FE 18576 bytes
SHA-256: 821daecccb4d9802b425771331493e81bb578503857a5f1b541bc873f81a5cab

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