Malicious PDF — malware analysis report

Static analysis result for SHA-256 5390e7d68152ff45…

MALICIOUS

PDF

35.2 KB Created: 2021-07-05 23:33:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 354be0cbed4082da2eb77c89c4d88df2 SHA-1: d16f17dc079684be3ed5c819e77441df2d8e3fb7 SHA-256: 5390e7d68152ff45d09e58bf84b18141e75849c4f4cb1379d5188cad69b7c90b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' redirector. The document body and embedded URLs reinforce this, pointing to sites offering game currency or hacks. This suggests a social engineering lure to drive users to a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/free-coins-on-coin-master-2021-game-hack PDF link annotation
    • http://stikgiamakassar.ac.id/digilib/repository/pubg-uc-50-tl_GM1330123889.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/real-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/get-free-robux-legit_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/hacks-for-prison-life-roblox_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/robux-website_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031a3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31A3 23316 bytes
SHA-256: 171667259fd201b29bb8903f611ae65488a4b799be603f7feab0335807ce080f
font_01_sfnt_off00006650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6650 18400 bytes
SHA-256: bed343b2bd1f226d572eb4efd0842b7506c1f222f82179a57ffd65f3da1cc054

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