Malicious PDF — malware analysis report

Static analysis result for SHA-256 770395aec53622d6…

MALICIOUS

PDF

34.2 KB Created: 2021-07-08 21:23:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 22aabe96b42a07302a93bd37e5ed1b33 SHA-1: b97f12bfff9463529719130dcd026802f8d258da SHA-256: 770395aec53622d60e50be97927a14050bf902456e4b985fcf302236e9fd0af8
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/roblox-exploit-download-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-free-education_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-2021-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-a-hacked-account-back-on-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/hack-para-dragon-ball-rage-roblox-2021-noviembre_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-how-to-enter-cheat-codes_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/2021-free-robux-no-website-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/orewards-com-free-robux_GM431946152.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_off00002fde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDE 21644 bytes
SHA-256: a72e547d600061aa3b38f744c885fe9adc49015bbc81a2da3d08349d879ba8a3
font_01_sfnt_off00005f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F57 19392 bytes
SHA-256: 222653fb6e77f57885132882620f81ded5cfebf97e881e1f0191fa7fa6f2d083

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