Malicious PDF — malware analysis report

Static analysis result for SHA-256 00191e220d29a2d1…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 08:34:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a00bfa49eb3cdb79be876755a407a8d4 SHA-1: d6a639b47531804a80ca742cd56d3c8952b48d18 SHA-256: 00191e220d29a2d1272416765d6b37fa4c860f99c63172d0244333c41d3ede0c
82 Risk Score

Malware Insights

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

The PDF document contains lures related to game hacks and free generators, directing users to external URLs. The primary URL, http://netcdn.tw/app/406889139/coin-master-game-for-pc-free-download-game-hack, is associated with a high-severity heuristic for game hack redirects. This suggests the document's purpose is to trick users into visiting potentially malicious sites that may host malware or phishing content. No scripts were extracted from this sample.

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-game-for-pc-free-download-game-hack PDF link annotation
    • http://digilib.stimata.ac.id/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-cheat-engine-bypass-v3rmillion_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-robloxian-20-free_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-get-free-robux-on-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/derp-face-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-hack-roblox-2021-accounts_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-cards-that-works_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/headless-head-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-spin-app-for-coin-master_GM406889139.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_off0000335f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x335F 22828 bytes
SHA-256: 5f8b023b4cfaaf9a89ee00d5e2e5a7cbf01a40223641fab360d4620e750fe019
font_01_sfnt_off00006658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6658 18992 bytes
SHA-256: 3f6872479ef3b87ebfa0ba52f6a98164127b669b1802ae80a1b5a55708a3981e