Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed477794e3758612…

MALICIOUS

PDF

45.3 KB Created: 2021-05-17 22:36:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 99c66319a54eb4e49be68c263bdbc45d SHA-1: f1dcb82bd72a774e01df45440aea8d54281017fd SHA-256: ed477794e375861212f8a233b25c350d7b2c44d57918eec9222d4e5ceb9f4ef5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary lure is a link to 'coin-master-game-hunter-game-hack', which is identified as a malicious redirector. The document body and embedded URLs suggest a phishing attempt to trick users into visiting potentially harmful sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9551

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 https://netcdn.xyz/app/406889139/coin-master-game-hunter-game-hack In PDF document text
    • https://www.tiancom.com.tw/upload/files/coin-master-free-spin-links-december-30-2021_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tiancom.com.tw/upload/files/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b8d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B8D 25308 bytes
SHA-256: 3e54ed1e77b43ed43773a0d177cec7bfa6f4f904cf7051d96cdcc15bb0e4c5f3
font_01_sfnt_off00008563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8563 2928 bytes
SHA-256: 0bb26577d52c8d51e00ad4edc5eaecc41f30204c62dca387b29f5eedfceecc2d
font_02_sfnt_off00008f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F80 17944 bytes
SHA-256: e9797648e833dbfa666635f32d7367ca0739e8c750ac532ad8234daf7d16a172

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