Malicious PDF — malware analysis report

Static analysis result for SHA-256 06228f8bdf7bde73…

MALICIOUS

PDF

34.8 KB Created: 2021-06-26 01:45:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 38cb40fb36004c71f0790b537de3735c SHA-1: b0769079be2ae86882944efc2ee96875f03110e9 SHA-256: 06228f8bdf7bde73083f29bd88617f01a9c1a6c495456c222271e1173cccece3
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this, indicating a social engineering attempt to trick users into visiting a malicious site. While no scripts were explicitly extracted, the PDF structure and the nature of the lure suggest potential exploitation for client execution.

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/roblox-hack-05-2021-game-hack In PDF document text
    • https://library.fdk.ac.id/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-for-free-on-ps4_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-ftw_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-clothes-on-roblox-high-school_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-free-play-as-guest_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-robux-in-roblox-no-hacks-2021_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-minecraft-no-virus-free-robux_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/song-id-for-free-money-cardi-b-roblox_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-robux-2021-real_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-use-roblox-scripts-to-hack_GM431946152.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_off00002fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA3 22692 bytes
SHA-256: a4cc9e38cbe8f47e9d0e9143d8f8cac7d147325216a7411ab425193dbbaaeb3b
font_01_sfnt_off0000624b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624B 19192 bytes
SHA-256: ee20e6b79805bcec9f1cf10a964a8be252d4d9761dc8432f714f21082f6b902b

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