Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ba6d4e34023c120…

MALICIOUS

PDF

23.4 KB Created: 2021-06-25 11:54:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 215929b47d7f4020bc5a20344e8980da SHA-1: e310f82f63fe7813191c9717ad72a020bb258494 SHA-256: 7ba6d4e34023c1206152026a443e70adc9673a8fa1a19971906a4629b528151c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/roblox-in-game-hack-game-hack. The document body and embedded URLs suggest a lure for game-related cheats or hacks, a common social engineering tactic. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the heuristic firings indicate malicious redirection and lure behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 3

  • 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.
  • 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/roblox-in-game-hack-game-hack In PDF document text
    • https://alisa.com.tw/upload/files/www-coinmaster_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/robux-hack-2021-october_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-robux-only-username_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-rixty-codes-roblox_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/robloxcom-hack-download_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/free-build-games-roblox_GM431946152.pdfIn PDF document text
    • https://alisa.com.tw/upload/files/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000307e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307E 21908 bytes
SHA-256: c857e3e9e0976a7e8619a536c466ca6aa48a530e0e807d8f3573778b83da7725

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