Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0d3b800b4ded64…

MALICIOUS

PDF

41.8 KB Created: 2021-05-12 18:32:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: eb18be0557252831ec3387d92e3e6a2b SHA-1: d1ae3729d788c3d53a9e106432cac4e45203c502 SHA-256: 7a0d3b800b4ded64544ae247e36df34a8d490d184f6e06d1b80c10be5bddf934
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 0.9971

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 https://netcdn.xyz/app/431946152/roblox-account-hacker-tool-game-hack PDF link annotation
    • http://sttlets.education/senayan/repository/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/buxblast-com-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/mc-hacks_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-blogspot_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/best-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/master-8-ball-pool-free-coins_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-rules_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/new-free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000471d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x471D 25252 bytes
SHA-256: ed3179b6ac6752645903b8d2553dff1fea5833a4c43fb80d2d1ca86ed6a636e6
font_01_sfnt_off0000805f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x805F 18428 bytes
SHA-256: be2d3c57b171ea36946098a74c5bbef6bd2a12406cdf89d7d5ae97ba7b22bd3c

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