Malicious PDF — malware analysis report

Static analysis result for SHA-256 55206699a3b26c56…

MALICIOUS

PDF

32.8 KB Created: 2021-07-19 04:27:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: cefb304b73db5c16772227ee62e16a12 SHA-1: c73c872a0d2101f991c6c280d77356378c13c38b SHA-256: 55206699a3b26c56715f07cbbbcd97fafe3ede6713d8d5ccd3f960b21497a0d5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as free game hacks and generators. The document body explicitly mentions 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. The primary malicious URL identified is http://netcdn.tw/app/479516143/is-minecraft-education-edition-free-game-hack, which likely leads to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/is-minecraft-education-edition-free-game-hack In PDF document text
    • https://bf-sozidanie.ru/images/minecraft-education-free_GM479516143.pdfIn PDF document text
    • https://bf-sozidanie.ru/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://bf-sozidanie.ru/images/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • https://bf-sozidanie.ru/images/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • https://bf-sozidanie.ru/images/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • http://bf-sozidanie.ru/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://bf-sozidanie.ru/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://bf-sozidanie.ru/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://bf-sozidanie.ru/images/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • https://bf-sozidanie.ru/images/roblox-hack-client_GM431946152.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
font_00_sfnt_off00002efa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFA 21892 bytes
SHA-256: 2cae1ceb2803f4745a6643f7f8121334276e188b1bb84ecd2f990e70203e9df1
font_01_sfnt_off00005efa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFA 18024 bytes
SHA-256: 860599eb2378c11ce9f069b8b1214934614c40beead093e3b25ec1c42f286d72

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