Malicious PDF — malware analysis report

Static analysis result for SHA-256 373675d9c509c093…

MALICIOUS

PDF

35.8 KB Created: 2021-05-21 12:48:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3ce8ae0bac2ae1d0d24db3f7242e54b4 SHA-1: 259ee4c572f410f424ff9e066fee378d6a398263 SHA-256: 373675d9c509c09386d455396ba8146bdbf4f5636825618bf590fe358dd792bf
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 0.9492

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/835599320/free-tiktok-followers-no-human-verification-or-survey-game-hack PDF link annotation
    • https://emindonesia.com/assets/CKImages/files/coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/coin-master-stop-attack-hack_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://emindonesia.com/assets/CKImages/files/coin-master-reward-link_GM406889139.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_off00003316.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3316 23736 bytes
SHA-256: f5b9270482037d7e03c2c7def839191eb20a70cb389885f11feb138b517aa2ca
font_01_sfnt_off00006915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6915 18748 bytes
SHA-256: 6c56a9102827ae6ceba4f8b38934fd9fcdc3c6624088a0c8a681a3e50045d012

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