Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a8261d5a8005239…

MALICIOUS

PDF

46.8 KB Created: 2021-06-04 03:06:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f06adf2b8dede32e78d7e7c5b98901a8 SHA-1: 02c1312e1d505cab6c811e826b845c5737a3a55d SHA-256: 8a8261d5a80052390dc73c0fb75dd0fc25a5a4a6ef302ba23384922e4220ae22
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. 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 0.9769

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.
  • 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.online/app/431946152/how-to-get-free-hair-in-roblox-game-hack PDF link annotation
    • http://library.umla.ac.id//repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/daily-coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/tiktok-free-view-quest_GM835599320.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-free-attack_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/fast-robux-online_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/pubg-uc-list_GM1330123889.pdfIn PDF document text
    • http://library.umla.ac.id/repository/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-do-i-get-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-modded-minecraft-server-hosting_GM479516143.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_004_off0000516d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x516D 24424 bytes
SHA-256: 89d099fed65e2d42a4b942f0710e788b6f8e5eb9c3a7013dab75de3c58ea44b4
font_01_sfnt_off0000896c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x896C 2832 bytes
SHA-256: 78e89c8f621d90011ffb7a2107d701d4cdf090a2f2cf42d5a65297289afc8805
font_02_sfnt_off0000931c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x931C 18564 bytes
SHA-256: d67237273ed03f92aa8c6c4764a8757174e90409c0462d06d9c122592efde19a

Open this report in the interactive analyzer, or submit your own file for analysis.