Malicious PDF — malware analysis report

Static analysis result for SHA-256 e20c5b5d46c5dcdd…

MALICIOUS

PDF

42.7 KB Created: 2021-05-13 18:34:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d5130a38447d86ea6e90aa038c04775f SHA-1: ba5154f918cefddb8e117f2469c140a4d3baa571 SHA-256: e20c5b5d46c5dcdd121c600cc9cddf9ef597cb88ed67faa5e74c3a8872494122
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains numerous embedded URLs, including one pointing to a raw IP address, that are designed to trick users into downloading files. The ML classifier strongly indicated maliciousness, and the presence of multiple download lures suggests a phishing or malware distribution attempt. The document body itself contains obfuscated text and references to game-related hacks, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-link-spin-game-hack
    • http://110.232.82.59/__statics/gudangsoal/files/free-roblox-app_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/blox-world-free-robux_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/coin-master-free-spins-cash_GM406889139.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/free-roblox-gift-card-codes_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/free-coins-for-coin-master_GM406889139.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/coin-master-free-spins-hack-apk-download_GM406889139.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/free-robux-without-verification-or-survey_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/try-coin-master-hack_GM406889139.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/coinmaster-fan-page_GM406889139.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/free-robux-without-any-verification_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/free-robux-no-survey_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/is-roblox-free-on-ps4_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/free-robux-no-verification-no-download-2021_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/play-minecraft-free-online-no-download_GM479516143.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/free-coins-for-flip-master-online_GM406889139.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/funbloxxyz-free-robux_GM431946152.pdf
    • http://110.232.82.59/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ce0.bin
1f26a04f8870a9723f6f1800288f90843458c768891b3a48f872b043bd62952a
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CE0 24692 bytes
font_01_sfnt_off00008568.bin
73446086b7970e4c311ea7edd0e96fe93bb69e7a29ec1c6c70349cef1a9e8050
pdf-font-stream PDF embedded font (sfnt) at offset 0x8568 18056 bytes