Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a3000008c61d20…

MALICIOUS

PDF

42.3 KB Created: 2021-05-12 05:41:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: de4df53594e9a90d4417d890735b5ab6 SHA-1: 9bf915e7bbc2a584e83661d10f53f87b5c12b3de SHA-256: 74a3000008c61d200e5232e92721df89edffada9e6a09013b3552611d35ecf8b
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses a seed-phrase/secret-recovery 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

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/406889139/coin-master-free-spin-and-coin-links-game-hack PDF link annotation
    • http://iedarelief.us/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/wurst-download_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/wurst_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-no-human-verification-or-survey-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_003_off0000483a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x483A 25712 bytes
SHA-256: bbaaff1cd78024710f794cdefd31897f2d6b764e6a9ed9870de978b673dd314d
font_01_sfnt_off0000834d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834D 18228 bytes
SHA-256: ab1c4cdc214a6baf81a15e2f62a40ea9cfbbbf407f0f3dd1c7564e467cf0dae2

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