Malicious PDF — malware analysis report

Static analysis result for SHA-256 09c46fccec1c9551…

MALICIOUS

PDF

35.4 KB Created: 2021-07-03 11:59:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 1caa42d537c7ea20b2dd368378d744ce SHA-1: 69d939e6437b6e61cac42454f99bc1a873e36d3e SHA-256: 09c46fccec1c95512f69c2573aea161e56ae8d0ba067077e46ea2ec6c777ea99
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple external URLs disguised as links to game hacks and generators, a common lure for phishing or malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classification suggest the document is designed to redirect users to malicious sites, likely for further exploitation or credential harvesting.

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/835599320/tiktok-free-vs-premium-game-hack PDF link annotation
    • http://camphat.com.vn/upload/UploadFiles/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/windows-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/csgo-roblox-hack-sc-ript-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/free-robux-hack-glitch_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/roblox-how-to-hack-kohls-admin-house_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/hacks-for-roblox-on-ipad_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/best-discord-server-for-free-robux_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/free-hair-on-roblox-for-girls_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/roblox-grinding-cheat_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/hacks-como-conseguir-robux-gratis_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/free-bacon-roblox_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://camphat.com.vn/upload/UploadFiles/files/roblox-cheat_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
stream_002_off00003310.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3310 22944 bytes
SHA-256: d2a8201c7e155458d86cc48f21f003f803e5e17cf777b13aebb65f605ad2eecf
font_01_sfnt_off0000669b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669B 18660 bytes
SHA-256: 912be5dbb6054034a572a542a3c86d15606142773fcf5ceeff56e60f9cb93bb8

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