Malicious PDF — malware analysis report

Static analysis result for SHA-256 62dc7415a81dbcca…

MALICIOUS

PDF

35.7 KB Created: 2021-06-22 12:04:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ae9db02ab2a080e048a679486b67bffa SHA-1: 67177671e981b3d435b8a585e52922f11c312451 SHA-256: 62dc7415a81dbccad67b2b6eee5b5f0553bdb47d5b44a646f7e9f7c2eb67aab3
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are presented as PDF files offering game hacks and free in-game currency for popular games like Roblox and Coin Master. The ML classifier strongly indicated maliciousness, and the presence of a "download button" heuristic further supports a malicious intent to trick users into downloading potentially harmful files. The document's content and structure suggest it is part of a link farm designed to attract users searching for cheats and exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/roblox-casterly-rock-free-game-hack
    • http://olimpik.mk/imagescke/upload/files/https-iosgodscom-topic-20213projectrobloxhackbeta-page5_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/100-free-spins-coin-master-2021_GM406889139.pdf
    • http://olimpik.mk/imagescke/upload/files/coin-master-free-spins-2021-haktuts_GM406889139.pdf
    • http://olimpik.mk/imagescke/upload/files/free-auto-mouse-clicker-for-roblox_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/the-roblox-hack-of-2021_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/hackear-juego-coin-master-espaol_GM406889139.pdf
    • http://olimpik.mk/imagescke/upload/files/united-gaming-net-coin-master-hack_GM406889139.pdf
    • http://olimpik.mk/imagescke/upload/files/coin-master-hack-without-verification-code-2021_GM406889139.pdf
    • http://olimpik.mk/imagescke/upload/files/como-hackear-roblox-con-cheat-engine-2021_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/free-robux-codes-2021-real_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/how-to-get-free-clothes-on-roblox_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/earn-robux-now_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdf
    • http://olimpik.mk/imagescke/upload/files/how-to-get-free-robux-for-real_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/roblox-hack-tool_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/robux-hack-online-no-human-verification_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/coin-master-rewards-2021_GM406889139.pdf
    • http://olimpik.mk/imagescke/upload/files/get-me-robux-for-free_GM431946152.pdf
    • http://olimpik.mk/imagescke/upload/files/50-free-spins-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030ae.bin
cb83d056862c9f07398643809ef5b745afc288de81cda6dab07eb59e52473516
pdf-font-stream PDF embedded font (sfnt) at offset 0x30AE 23524 bytes
font_01_sfnt_off00006632.bin
df338673827acf27d64b347265dd3da05328029554d3ef21438e3bd27181e284
pdf-font-stream PDF embedded font (sfnt) at offset 0x6632 19104 bytes