Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e4aa01118c2fc56…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 05:39:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 1ce4a1f3e21ad7c154d99acb7707272a SHA-1: 09f67f0efe8798ad4648bb5f6abc097dd0aafda4 SHA-256: 2e4aa01118c2fc5697164324dad660c7760d074d47f49db3e55da3b3a41c40a4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency. The primary malicious URL identified is http://netcdn.tw/app/406889139/coin-master-hack-pc-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-hack-pc-2021-game-hack In PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-murder-mystery-2-cheat-codes_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-cool-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/robux-prices_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-turn-in-to-super-sayin-roblox-no-hacks_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-account-hacken_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-hack-roblox-to-get-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-comcom_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-become-a-hacker-in-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
stream_002_off00002dc5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2DC5 23124 bytes
SHA-256: 06083608dcfe75327ee12f28da44389c76a31a9022bcfe377f0acabbca7b784f
font_01_sfnt_off0000618b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618B 18560 bytes
SHA-256: eeb023a91ba39b5fa554a6c784e72bf16b3eaf0df26123cf10d120866bb40872

Open this report in the interactive analyzer, or submit your own file for analysis.