Malicious PDF — malware analysis report

Static analysis result for SHA-256 38858d1eb4301506…

MALICIOUS

PDF

41.4 KB Created: 2021-05-23 22:43:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4938f79f5eaa2b05da86c3eef35c33c6 SHA-1: 651f84b5fde9f923404f07349d8b7e2d46efaec0 SHA-256: 38858d1eb43015062c578c040065e8ebe6807b39397965d9d0ee11666f3685af
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a call-to-action phrase, luring users to click on a link for a 'game hack' or 'generator'. This link redirects to a malicious domain, likely serving a secondary payload or phishing content. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7534

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.xyz/app/479516143/play-minecraft-pocket-edition-for-free-game-hack PDF link annotation
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://mitsubishijogjaku.com/ckfinder/userfiles/files/noob-vs-pro-vs-hacker-vs-god-minecraft_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003611.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3611 28404 bytes
SHA-256: b36def09926ea14c5115d770883a94d72d42c71d7cba0a0870b575f90d67c093
font_01_sfnt_off00007661.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7661 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off00008000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8000 18460 bytes
SHA-256: 6c649d819020132e6c1bf6337a465c0b09cd39993cd953cd91e9ee42e31cc7d9

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