Malicious PDF — malware analysis report

Static analysis result for SHA-256 16bba20998381169…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 23:43:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 86898367c6a69861bcd9a3fa49074560 SHA-1: d7fbd916713b29e14ec798055dcb2db9ac94b977 SHA-256: 16bba2099838116922b26161765ba1e7404a36784a095b23aa06a19910ce9bfa
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/coin-master-free-spins-bit-ly-game-hack PDF link annotation
    • https://ibelive.tw/image/data/files/how-much-pokemon-go-free-today_GM1094591345.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-free-spin-app-apk_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/robux-without-verification_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/fun-flex-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-gampasses-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-roblox-shirt-maker_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-spins-coin-master-haktuts_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
stream_002_off00002dbc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2DBC 23332 bytes
SHA-256: 065c027f15bc2de49216925b863e8a2a26f60b27f4baf07486fc03ab3edbec4f
font_01_sfnt_off00006209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6209 18572 bytes
SHA-256: e4c5cc8e0af759db0a59985e9b5dd8949b05b8be0a7a9f9c37067d683851e255

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