Malicious PDF — malware analysis report

Static analysis result for SHA-256 9444fd0e0fe152fe…

MALICIOUS

PDF

34.9 KB Created: 2021-06-22 06:11:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 308279bdb98f023b0b4a26538d50744f SHA-1: 19a69a6fb9ccc1df4d770888e8beb91548183886 SHA-256: 9444fd0e0fe152fe1f278c5d92973384094ece9af6801fdacb9946327be55636
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs that lure users with promises of game hacks and free currency for popular games like Roblox and Coin Master. The primary URL, http://netcdn.co/app/431946152/roblox-1-million-robux-cheat-game-hack, is directly linked to a heuristic firing for a game hack redirector. This suggests the document's purpose is to drive users to potentially malicious websites that may host malware or phishing content.

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.co/app/431946152/roblox-1-million-robux-cheat-game-hack PDF link annotation
    • https://weddingcards-expert.tw/upload/files/getbucks-me-roblox-free_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/como-hackear-cualquier-cuenta-de-roblox_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-to-hack-guns-in-apocalypse-rising-roblox_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/can-roblox-hack-your-phone_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-hack-tool-v1-9-pc_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • https://weddingcards-expert.tw/upload/files/how-to-get-minecraft-for-free-on-ps4_GM479516143.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_off00002eea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EEA 22944 bytes
SHA-256: 0d097328def42c99f8f54e2335a8aa4a7b6560c5b687d1a541a860cbb6dfabd5
font_01_sfnt_off000062cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CF 19316 bytes
SHA-256: 33be116318e73bc624c0e6e102ae0dcfdae091831a7837b4dfc2992923b41020

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