Malicious PDF — malware analysis report

Static analysis result for SHA-256 06c50dcc620415b7…

MALICIOUS

PDF

35.6 KB Created: 2021-06-22 12:31:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a6349ad4368dfa7c19a64c0793b80ab8 SHA-1: ac2b6b60c7fd9708bc1d04a227167893fcd408a3 SHA-256: 06c50dcc620415b749a6434a4cc2e2a25acaf0113d53d141643496d9c47c1057
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, designed to lure users with promises of free game currency. The document body and embedded URLs strongly suggest a phishing or scam attempt related to popular online games. No scripts were extracted, but the presence of malicious redirector links and the lure content indicate a high likelihood of leading users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-bc-for-free-roblox-2021-game-hack In PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/free-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/roblox-super-saiyan-simulator-2-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/claim-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/roblox-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/how-to-get-priviate-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/robux-hack-reddit_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn8jombang.sch.id/__statics/gudangsoal/files/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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
font_00_sfnt_off00003240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3240 22728 bytes
SHA-256: 1999311aa52a7ff1fa3107cfcee6e759ca4131c729aaf9b399a183eb01d78400
font_01_sfnt_off00006519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6519 19320 bytes
SHA-256: 1849e70b3d7c8ef353eb1577050441af4e826e27e10d54f17a68cc162215cd7c

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