Malicious PDF — malware analysis report

Static analysis result for SHA-256 68a03d402ef1ec63…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 19:03:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8f5d56901781ae3c31e633a6dbfcccd7 SHA-1: 57168d9f156354d782b04236b69f10ed9182bd54 SHA-256: 68a03d402ef1ec636da8e586f36fb4134c9bc1edaf00190491436ad4163471ea
122 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. 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 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/431946152/ro-ghoul-script-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/get-free-robux-items-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-root_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-cheats-for-ninja-similar-xbox-one_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-plain-yellow-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/unlock-all-guns-in-roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/corn-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-hack-us_GM431946152.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
font_00_sfnt_off000030dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DD 21828 bytes
SHA-256: 5b8f6e1219936e0e416a74f4f55c0ac0252ade3c963104ee627046ee6d2a6da9
font_01_sfnt_off0000611e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611E 18824 bytes
SHA-256: c7dc71cc212b0e3ecb5550cca84b231a583b24498cd950bd1d4b02a1a2b42142

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