Malicious PDF — malware analysis report

Static analysis result for SHA-256 3baafaa123a81cec…

MALICIOUS

PDF

34.6 KB Created: 2021-07-03 23:25:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 86072deabe289ddd888ed59c992f661f SHA-1: 933dca8990a8fe8dadaaa6b4ec8bb6c267545e19 SHA-256: 3baafaa123a81cec87c5a27fd144b4ccfadfff3e2ad7240c21ad1da686f7218b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or malware. The document body and embedded URLs reinforce this lure, aiming to exploit user interest in popular games.

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/robux-hack-without-verification-required-game-hack In PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-exploit-free-executor-2021-september_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-hats-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/hack-pia-para-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/easy-points-gg_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-bc-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-appsfor-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-hack-players-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/onlyrobux-site-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/free-hats-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsngresik.online/__statics/gudangsoal/files/how-to-get-cool-gear-in-roblox-free_GM431946152.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_off00002f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7D 21880 bytes
SHA-256: 25ddf777931aece751be53aab8ac5fbb99f2f87b907c7f2479d5727d99f8c0bd
font_01_sfnt_off00005fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCC 19788 bytes
SHA-256: 8181c50ef8215456686d444e6d95991b282da5738233ee6c164dc0b41f4a3983