Malicious PDF — malware analysis report

Static analysis result for SHA-256 49199ab0e1450457…

MALICIOUS

PDF

46.1 KB Created: 2021-05-13 04:53:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 53fac2e1a88534bef99e9658f016f7e6 SHA-1: 0d53830437ea743ee020e3581f76698caa673de8 SHA-256: 49199ab0e14504574c29ecfa95c40257e3b9f04a828e962566e21e9701f9ae56
160 Risk Score

Malware Insights

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

This PDF document contains a lure for a 'Coin Master Hack Apk' and explicitly requests recovery secrets or private keys, indicating a phishing or scam attempt. It also embeds multiple links, including one to known malicious redirector infrastructure, suggesting the user will be directed to download a malicious payload or be phished for credentials. No scripts were extracted, but the embedded links and document content strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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
  • 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-hack-apk-3.5-18-game-hack In PDF document text
    • http://digilib.unla.ac.id/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coinmaster_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-without-human-verification-india_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox40com-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b67.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B67 25400 bytes
SHA-256: 9932677d9d21507fac51ab92496baf7d3067b0a1ac1685d143e246b2f9eb7137
font_01_sfnt_off00008594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8594 3204 bytes
SHA-256: 8c2546387700f45186c395d475006178ee984eabbc175bcf1ee6eb58ba8b57aa
font_02_sfnt_off00009098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9098 18584 bytes
SHA-256: 713a301d70f86388f4bd8aea956833d7b06d6a967d700e365eefcc159a0c525c