Malicious PDF — malware analysis report

Static analysis result for SHA-256 734d700919df1bfa…

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 00:03:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: aa26307a2dda2fdadf38587ce464a0e7 SHA-1: 221df7128a1de5a240e10437de6eae7cb999be86 SHA-256: 734d700919df1bfaacb9e10c592fb72e1030e05d073047b5e554a1fc44018866
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure related to 'free game hacks' and 'robux', indicating a phishing or scam attempt. The primary link, http://netcdn.tw/app/431946152/roblox-bux-free-game-hack, is flagged as a redirector for game hacks. While no scripts were extracted, the document's structure and embedded URLs strongly suggest it's designed to trick users into visiting malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/431946152/roblox-bux-free-game-hack PDF link annotation
    • http://www.glabintl.com/uploaded_files/userfiles/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/noob-vs-pro-vs-hacker-roblox-bee-swarm-simulator_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/rewards-robux_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-no-inspect_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/tiktok-free-view-iphone-apps_GM835599320.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/hacker-para-roblox-apocalypse-rising_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-cheat-in-strucid-roblox_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/infinite-jump-roblox-download-free_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/tp-hacks-script-roblox_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/scp-lockdown-roblox-game-cheats_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/roblox-gratis-hack_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-get-free-robux-and-builders-club-without-hacking_GM431946152.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/pokemon-go-free-quest-guide_GM1094591345.pdfIn PDF document text
    • http://www.glabintl.com/uploaded_files/userfiles/files/how-to-hack-a-person-on-roblox_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
font_00_sfnt_off00002ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF1 22432 bytes
SHA-256: ffcb02c1fee44d4842696b27511129573b39e014d38028e3dc1613ce636b022e
font_01_sfnt_off0000622f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622F 18788 bytes
SHA-256: fbab28d7f6e5a424fa162c67bd0527d854af59c09f66b1d36dcf755703a8e09e

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