Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ab927618f111bf…

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 23:47:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 74c97bac7dded13ba3a0b797d2a33135 SHA-1: f91723829cdd1af9eba2d00147591fc2cf1cf60c SHA-256: e1ab927618f111bf0743fc4faf351469b816de4129883940d8d9c75085972bc6
82 Risk Score

Malware Insights

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

The PDF document contains multiple links disguised as game hacks and generators for popular games like Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/hacked-my-instagram-roblox-id-game-hack, is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive users to potentially malicious content or downloads, aligning with spearphishing and exploitation techniques.

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.co/app/431946152/hacked-my-instagram-roblox-id-game-hack PDF link annotation
    • http://stikespantirapih.ac.id/home/repository/free-robux-no-genertor_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/the-roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-codes-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/all-gamepasses-free-on-roblox-gitch_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/barbie-free-online-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/freecoins_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/yummers-free-robux_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/hack-menu-exploit-script-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-ben-10-roblox_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/how-to-hack-roblox-surf_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/money-hack-roblox-adopt-me_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_off00002f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F73 22324 bytes
SHA-256: ff717e3c23af8fc62688e5e510c81168ebbe1567b7a1c2bf1e05ae7a5ef0f7c1
font_01_sfnt_off00006130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6130 19568 bytes
SHA-256: 0c891725352ba53cd936e0f881002c840b2571c6e9b0231c7cf695cb40974366

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