Malicious PDF — malware analysis report

Static analysis result for SHA-256 2221bfa648f9e88e…

MALICIOUS

PDF

47.4 KB Created: 2021-06-03 07:38:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7e76180012510d0c1f2a26f18be2c25b SHA-1: f4b9e8d6c62d9ef918bbac105913674fe4774f2a SHA-256: 2221bfa648f9e88e34b286ecdda04a35c5833f5f510599d0862702c61df42624
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/479516143/minecraft-hacked-client-bedrock-game-hack PDF link annotation
    • http://library.umuslim.ac.id/repository/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/fake-gps-for-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-generator_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-spin-coin-master-apk_GM406889139.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
font_00_sfnt_off00005157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5157 28856 bytes
SHA-256: 81aafb42c7e978e11019550c3597ccefac44abaffe8d2575f5eedc38f408ee19
font_01_sfnt_off00008cac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CAC 2824 bytes
SHA-256: 32afe7424993ed77feed76f83a3afdb3d3391dbb877b7f4b0d7509f28dd06233
font_02_sfnt_off00009653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9653 18344 bytes
SHA-256: cec5df14c13053b95980c4aea59b0ff00c617a437a79699219b389062a1adae6

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