Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee141543fa04d99d…

MALICIOUS

PDF

34.1 KB Created: 2021-06-29 23:46:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ff9240b29fa329f9900b22f0790b38dd SHA-1: a9d5bff7d8df1b5d91472b5498bdf2aeb6e7dc93 SHA-256: ee141543fa04d99d25f1e72220d412d60e240a5552109ce0950b22b397dd1c7a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting 'free generators' and 'game hacks' for popular games like Roblox. The presence of a call-to-action button further supports the lure-based attack pattern. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

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-pet-paradiese-hack-game-hack In PDF document text
    • https://www.sd-olimp.hr/files/rbx-hut_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/robux-download_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/roblox-hack-bloob_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/games-free-download-roblox_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://sd-olimp.hr/files/roblox-parkour-point-hack-scriot_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/roblox-hack-robux-infinito-download-2021-pc_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/how-to-get-free-spins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/how-to-get-free-items-on-roblox-with-inspect-element_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/fly-hack-roblox-cheatgg_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/change-the-amount-of-anything-on-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • https://www.sd-olimp.hr/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://sd-olimp.hr/files/how-to-hack-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • http://sd-olimp.hr/files/wurst-client_GM479516143.pdfIn PDF document text
    • http://sd-olimp.hr/files/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
    • http://sd-olimp.hr/files/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://sd-olimp.hr/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off00002d4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4A 22660 bytes
SHA-256: 4efc76c38892932191c005fbf69faf9b1a4a1317b4aa1e42ae37e4864bbcc6b6
font_01_sfnt_off00005faf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAF 19208 bytes
SHA-256: 846076fef6849046c1a966561f6f78c378ec7e4e2749c634195d7e83a591a3e0

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