Malicious PDF — malware analysis report

Static analysis result for SHA-256 83e238d303a7f6a5…

MALICIOUS

PDF

43.2 KB Created: 2021-06-11 01:40:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 36a0adc7ab97fd53bc931d6c5e716721 SHA-1: 6b4011a9e67c43d990a1f5f08b89e84f90d7ed38 SHA-256: 83e238d303a7f6a5f131bbb3870e6de46d333def42581f6e975f80a40761ad9d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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.tw/app/431946152/cheat-roblox-no-clip-game-hack PDF link annotation
    • https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/tiktok-views-free_GM835599320.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/pokemon-go-free-versus-pc_GM1094591345.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/get-me-robux_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • https://mtsn4blitar.online/__statics/gudangsoal/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000497d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x497D 26372 bytes
SHA-256: ee48b589d5adf0f9a7b16750f4690c5b552545f53ab65f565764d6193dd67b04
font_01_sfnt_off00008608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8608 18576 bytes
SHA-256: a3d34bb86d288cc00aaf24c46202011eaecdf2a3fbdfb4e7714f28acb9fc9a98

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