Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ca7b90c2c6fdb56…

MALICIOUS

PDF

35.9 KB Created: 2021-06-30 05:11:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: c0914bd1b059d2c744d617ca8427945b SHA-1: bffd2467571dfc3d1d8ed5a668a4e5624601d000 SHA-256: 2ca7b90c2c6fdb56283205ed756c5eea5c0cb869dd7032e002eff42f931af554
160 Risk Score

Malware Insights

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

The PDF document contains a lure related to game hacks and free currency, directing users to a malicious URL. This URL is identified as a known malicious redirector, indicating a phishing or scam attempt. The ML classifier also flagged the PDF as malicious with high confidence.

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-free-robux-2021-easy-and-fast-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/free-tiktok-fans-no-human-verification-ios_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-hack-website-no-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/pepsi-hacks-roblox-script-cbro_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/fly-hack-roblox-mac_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/now-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-jailbreak-coins-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/5-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/is-minecraft-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/erased-citizen-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-the-mew-game-pass-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-de-roblox-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-human-verification-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-boombox-backpack-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00003260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3260 22616 bytes
SHA-256: d14fe6df773f971b0572b462ffccb96a00ce37fdc74ffb593b8f0323995a466b
font_01_sfnt_off000064e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E6 19740 bytes
SHA-256: 673da237ad17251812cca483cd1242a651971d56003c1e503c5e16e4afb67efc

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