Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbc345bf2bd5ef45…

MALICIOUS

PDF

46.2 KB Created: 2021-05-17 06:07:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 408716869f6b2110748ff63edb391cc4 SHA-1: e4560c0604c87ea3f0551af95c3c72da7f67c406 SHA-256: bbc345bf2bd5ef45f0dd9e911b052eed58ad6119819bfbfc5eb09d37bfb799ee
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The heuristic firings indicate that these links are known malicious redirectors. The document body, though partially obfuscated, also contains these URLs, reinforcing the lure to click on them. The primary goal appears to be directing users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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.
  • 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-gold-cards-hack-2021-game-hack In PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/free-robux-games_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/collect-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/como-hackear-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3majalengka.sch.id/__statics/gudangsoal/files/coin-master-cards-hack_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
stream_003_off000049e5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49E5 27240 bytes
SHA-256: 6937eff5b73ddfd126b96308621a9697e456ed288baa9c6e1a8c686ab90023da
font_01_sfnt_off000086fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86FA 18364 bytes
SHA-256: 25adfc3027f21b1e38f42a07395fd323d291e4477c7e958d1480243ffe9b6b95
font_02_sfnt_off0000a969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA969 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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