Malicious PDF — malware analysis report

Static analysis result for SHA-256 e644c5136b3b4ff6…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 14:18:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ef0d6a82b71ae54780425c51d74537a1 SHA-1: a780395d37d38111b41094f9d4c13b8ed5d53ae5 SHA-256: e644c5136b3b4ff6ff788dc201f89176c38cb622420d3fc2cc5e9ef57853ec80
62 Risk Score

Malware Insights

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

This PDF document contains multiple embedded URLs and a visual call-to-action button, strongly suggesting a phishing or malware distribution attempt. The document body and extracted URLs promote free game-related items and hacks, indicating a lure to trick users into downloading malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.tw/app/479516143/free-minecraft-server-hosting-game-hack
    • http://110.232.83.89/slimsppks/repository/how-to-hack-in-robloc-for-robux_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/actual-free-robux_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/cool-free-minecraft-skins_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-hack-version-33-2_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/hack-robux-illimit_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/hack-coin-master-apk-33_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-now_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-hack-apk-2021-download_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/how-do-u-hack-roblox_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/free-coin-master-coins-and-spins_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-roblox-money_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/minecraft-hack-client-download_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/worked-cheat-engine-roblox_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-generator-no-human-verification_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/roblox-games-com-free_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/minecraft-java-edition-free_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-free-cards-link-2021_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/is-minecraft-education-edition-free_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-robux-without-any-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003235.bin
1d28cb4a58b07693f8f06cc6250669718d369c2d92da90db29d9b135467b76c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x3235 22048 bytes
font_01_sfnt_off000062f0.bin
3722fe831b56fbf324865bd98e985c80b873b4d61fb4aa2a64332cfc2a086223
pdf-font-stream PDF embedded font (sfnt) at offset 0x62F0 18112 bytes