Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2161b1869398d42…

MALICIOUS

PDF

33.8 KB Created: 2021-07-04 03:15:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 25673bc768c18e57945b5b540fc43d19 SHA-1: ffdd60fd45886a7ff17f663ba3b85a9570d7ac12 SHA-256: f2161b1869398d4239f449696670371ff5ae74139bfced87812000657259e52b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise game hacks and free currency for popular games like Coin Master and Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' specifically flags this behavior. The document's content and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites, likely to download further malware or steal credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/hack-coin-master-spin-game-hack PDF link annotation
    • http://cleansui.com.tw/image/data/files/get-free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/robloxgiveaway-xyz-hack-robux_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/are-free-robux-sites-safe_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/rbx-hut-promo-codes_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/how-to-hack-retail-tycoon-roblox_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/ant-my-roblox-account-got-hacked_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/pokemon-go-free-and-apple-watch_GM1094591345.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/tiktok-free-view-iphone-6s_GM835599320.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/roblox-project-jojo-free-items-exploit-pastebin_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/free-roblox-hack-no-virus_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/purest-roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/how-to-get-free-bc-on-roblox-2021-october_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/coin-master-mod-version-free-download-2021_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_off00002f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3B 22596 bytes
SHA-256: 1cc57800a087556e3134c9e52f784e017650aa7f414cc6f3df15385ac785423b
font_01_sfnt_off000061bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BC 18180 bytes
SHA-256: b0c69fb41316595c55bb75fd2f2f99b4f9c52d92968d5e259995507e4ea01459

Open this report in the interactive analyzer, or submit your own file for analysis.