Malicious PDF — malware analysis report

Static analysis result for SHA-256 27ec71cece494d24…

MALICIOUS

PDF

34.1 KB Created: 2021-07-01 22:33:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2458dedf3b48e0ce1f606dedc200cc21 SHA-1: c17babde311eb9fd5370e47901385fea9f233366 SHA-256: 27ec71cece494d245683785d4e37f8bc7d1c700b8f1327d363baeccad6a771d0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free in-game currency and game hacks to entice users. It contains embedded links that redirect to malicious infrastructure, specifically identified as a known malicious redirector. The document body and heuristics strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

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/431946152/how-to-not-get-hacked-on-roblox-game-hack In PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/get-free-robux-eu5-net_GM431946152.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/roblox-cheats-for-robux-with-inspect_GM431946152.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/tiktok-free-views_GM835599320.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/free-robux-now_GM431946152.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/pubg-uc-30_GM1330123889.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/hcbb-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • https://elearning.min1bangkalan.com/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
font_00_sfnt_off00002f38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F38 21984 bytes
SHA-256: 159fb784d3f2c6f5eee5cf41a8f72456e9db04360305f10774f5fa79295c64e0
font_01_sfnt_off00005fd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD5 19096 bytes
SHA-256: 87a8e4ba97602155cec1bd35e1a9bdbae855ba1e7d6ce265bff893c498bc13a7

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