Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e0bd2c7de88d43…

MALICIOUS

PDF

250.9 KB Created: 2021-07-05 05:35:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e142cdf997f44b0ff87dc8ab4804e08f SHA-1: d129218573064689b87ec3084992973d1b94ad56 SHA-256: 34e0bd2c7de88d436c1c6656745787567158f7291ff335329348b3f33ecf72a7
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious. It uses a fake-CAPTCHA lure, an MFA/2FA-themed lure and an urgency-based lure. 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 clean score 0.0098

Heuristics 7

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/1330123889/pubg-uc-whatsapp-group-link-game-hack PDF link annotation
    • http://lib.uho.ac.id/library/repository/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-roblox-acc_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/robux-hack-real-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/hack-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/are-there-any-roblox-hacks-that-actually-work_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-hack-awsomeeaglefox25-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-daily-free-coins-link_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-get-coin-master-card-free_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_024_off00037cd1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x37CD1 25928 bytes
SHA-256: 23fe0340b8c460a58525560c968fabb06f9598b5ce4ae64157d9c4b699e87928
font_01_sfnt_off0003b9e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B9E0 19204 bytes
SHA-256: d0883f260e26c56c780d4a53f662da1d3bdf1905b4d1cae22e2d2b9ac13351a2

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