Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a1d53d0fc35c3b1…

MALICIOUS

PDF

29.8 KB Created: 2021-07-05 17:33:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9bc13972a680380d8281ed59b53ea26c SHA-1: c8cda4be77b40b915e2040f22a787744330434f6 SHA-256: 2a1d53d0fc35c3b1d4728deeac4799d57a9f318b65ea2b9e9b0bc2eea0f5037a
94 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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 4

  • 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.
  • 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/coin-master-hack-ios-download-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id//repository/coin-master-daily-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hack-in-roblox-2021-jailbreak-mac-os_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-cards-youtube_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-2021-no-waiting-instant_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hack-into-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-robux-easy-way-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/tiktok-free-usernames_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hack-for-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/break-free-song-id-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-hack-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hack-roblox-jailbreak-2021-on-android_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003281.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3281 23144 bytes
SHA-256: 2db5477701421a89d53326896ace386dfbe93f1e0ab8d16189cf7df0dbdd3e33

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