Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c3c8e6c41a47ccc…

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 15:03:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 3325eb441000d8ec8dccff6127641b9b SHA-1: 0dc1fa384f7d8a22a00bdea3b43a7b3106c29775 SHA-256: 5c3c8e6c41a47cccd8dd926bcbabfdb39946314e749494d3acfefea9e50c0907
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures for game hacks, such as 'Roblox Free Hats'. The document body and embedded URLs strongly suggest a social engineering attack aimed at tricking users into visiting malicious websites. The ML classifier also flagged this PDF as malicious with high confidence.

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/431946152/roblox-free-hats-game-hack In PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-hack-for-android_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-hockey-mask-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hex-code-hacks-not-working-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/descargar-roblox-hackeado-para-android-apk_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/hack-robux-roblox-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-broken-bones-iv-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-face-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/20-free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/savagefrey-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-free-accessories-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/getrobux-come_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-free-hats-glitch_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-spin-coin-master-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_off00002eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB8 21864 bytes
SHA-256: 24ee91430319c7f7433a6936a78b78b820307399391dad116bd579b0f808f4c4
font_01_sfnt_off00005f28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F28 18752 bytes
SHA-256: 0197d7c82a78f36152ce34f0b3b5c780d9e2ab7d84ecb78154c69ed8a6546024

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