Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7f278e06e768c5…

MALICIOUS

PDF

35.4 KB Created: 2021-07-08 22:48:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 13f2914d508abbf3241de069d27bfd9c SHA-1: 6c0e1a298bc0d8e4930ea033a39f39844563189a SHA-256: 2e7f278e06e768c5eaf158addc1083da381b6ba5e010e5c267c4ba047ce06938
160 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and free currency to entice users to click on embedded links. The primary link, http://netcdn.tw/app/431946152/games-that-give-you-free-robux-game-hack, is identified as a malicious redirector, indicating a high likelihood of leading to further malicious content or exploitation. The document's structure and embedded URLs suggest a phishing or malware distribution campaign.

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/games-that-give-you-free-robux-game-hack In PDF document text
    • http://aeridefense.com/image/data/files/mob-buster-robux-hack_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-hack-roblox-paintball-rank_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/robux-free-com_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-games-in-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-generator-with-chat_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-free-pants-on-roblox-bc_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-ultimategamer-365_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00003089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3089 22684 bytes
SHA-256: 6d5fec8675826c8895176d033c3101ed4854c876966d0d99f74db7de0bd15138
font_01_sfnt_off00006394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6394 19644 bytes
SHA-256: f2ef61d464a1197aa82024f03da1d5af6fa3bd93677ebddf5a94754dddc021ec

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