Malicious PDF — malware analysis report

Static analysis result for SHA-256 1075cafa133a8c76…

MALICIOUS

PDF

33.8 KB Created: 2021-06-19 02:37:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 6a43d6d74284747668b4e7c94e82b34a SHA-1: 0d348153c358404c5f003584fe59ae4ca9ed9398 SHA-256: 1075cafa133a8c7626bd4119684c11a6e61da325c6a8a84c3e9911ca50e42db8
160 Risk Score

Malware Insights

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

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as free game hacks. The primary lure, 'http://netcdn.co/app/479516143/minecraft-story-mode-free-game-hack', is flagged as a known malicious redirector. The document body and embedded links suggest a social engineering tactic to trick users into visiting potentially harmful sites, likely leading to further malware downloads or exploitation.

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.co/app/479516143/minecraft-story-mode-free-game-hack In PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-for-free-eee-pc_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-5-million-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-download_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/win-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-daily-free-spins-link-today_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_off00003153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3153 21780 bytes
SHA-256: 03c80d616b40fe06360b6272f35371bd1dc039b02066e26293876a24e3602c1d
font_01_sfnt_off0000614b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614B 18352 bytes
SHA-256: 75e49b2759fa984696c417d6c25ba92f7f0d6c06425984d3b958a192aa629ab4