Malicious PDF — malware analysis report

Static analysis result for SHA-256 576030fd3e859ddb…

MALICIOUS

PDF

34.0 KB Created: 2021-07-03 22:01:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: e2a5ac7f4d5c254f9d516cf237618a35 SHA-1: 13596227892f81cb4593f4f17e7943505d1be486 SHA-256: 576030fd3e859ddb2aa4b1f89a787a9d3ff876737a5b4b2bb974a4641edc5e7c
160 Risk Score

Malware Insights

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

The PDF document contains multiple links, including one that is explicitly identified as a malicious redirector. The document body and heuristics indicate a lure for 'free generators' or 'game hacks' related to TikTok, which is a common social engineering tactic. The embedded URL likely leads to a second-stage payload or phishing page.

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/835599320/how-to-get-free-likes-on-tiktok-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-online-game-demo_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/executor-roblox-free-no-hack-promise_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-game-pass_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/earn-robux-com_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-file-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-nike-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/god-mode-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/different-skywars-codes-for-free-coins-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-roblox-accounts-website_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-for-all-game-that-is-kind-ofm-like-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-wp-themes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-roblox-codes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-lua-c-cheat-engine_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/f-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/ac-market-coin-master-hack_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
font_00_sfnt_off00003170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3170 22228 bytes
SHA-256: 0c1b871395d065beed91914bef548327c8bbd2a1d60788fe0874d4a762652cbf
font_01_sfnt_off000062aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AA 18136 bytes
SHA-256: 9be82b9e87c76be08840925351ca9f044162866092bd9222233490d8cf5a8306

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