Malicious PDF — malware analysis report

Static analysis result for SHA-256 580a02f9770db665…

MALICIOUS

PDF

35.3 KB Created: 2021-06-18 02:12:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: d85a34eb56256196a04c145cd8893bf4 SHA-1: 832567dcf87bce9956cdc50924d7da4900e49826 SHA-256: 580a02f9770db66572c633da7c7de7ec98efa9ed5ba0fa90f8a185e9eaf50c7f
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as game hacks and generators. The document body and heuristics indicate a lure to download or access potentially malicious content. No scripts were extracted, but the embedded URLs and redirector heuristics strongly suggest a malicious intent to lead the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/roblox-girl-shirts-free-game-hack In PDF document text
    • https://library.institutpendidikan.ac.id/repository/multiple-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-play-bloxburg-on-roblox-free_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/robux-hack_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/minecraft-free-download_GM479516143.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/tiktok-free-fans_GM835599320.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/chloegames-free-robux_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-imagine_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/hacks-on-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3029 23748 bytes
SHA-256: a5b7f5770cc8e6c4b8396ec0a3e4beeec8337c5152de5e8a0b078429ad34c939
font_01_sfnt_off00006594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6594 18856 bytes
SHA-256: f910016ac932c730e3216a652f4615537beefa763180b79cb659a8933c4a1fae

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