Malicious PDF — malware analysis report

Static analysis result for SHA-256 84ce8d2548a196a9…

MALICIOUS

PDF

33.3 KB Created: 2021-07-05 07:49:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6045c3d2b3ae0e9ffcc9047caa18c120 SHA-1: 5eb4d7c0229f874b61107578362ca4d3dfa58c2b SHA-256: 84ce8d2548a196a9448df1a014c18c3c69a38a3a47159b841e55063cc927a9d5
142 Risk Score

Malware Insights

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

This PDF document is designed as a lure, employing game hack and free currency themes to entice users. It contains numerous links to external websites, many of which are also PDFs, that likely host further scam content or potentially malicious downloads. The primary URL http://netcdn.tw/app/406889139/free-mods-for-coin-master-game-hack appears to be a redirector for these lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 http://netcdn.tw/app/406889139/free-mods-for-coin-master-game-hack PDF link annotation
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/how-to-use-racist-dolphin-on-free-exploiter-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/breaking-point-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-robux-generator-no-survey-or-email_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/how-to-use-cheat-engine-undetected-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/how-to-hack-someones-roblox-account-2021_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
stream_002_off00002ef9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EF9 21972 bytes
SHA-256: 4c52936f3ee4fa978ce6db17f73860453ae0162a03169c45fbbbfbc05ab46c78
font_01_sfnt_off00005fce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCE 18172 bytes
SHA-256: 65b8c7323ee5b79fc15d205096ebdf4a77b3870f68de55403bfd7c845cb9ec2a

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