Malicious PDF — malware analysis report

Static analysis result for SHA-256 9010e95f3fe87b8a…

MALICIOUS

PDF

43.4 KB Created: 2021-05-14 09:42:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e17a791dd28a44b83598e3ee94ae28d8 SHA-1: 31166e69524c67ef892db52073cd7e8db5dcee66 SHA-256: 9010e95f3fe87b8abf96f3b4883db578bc4e104ee29cbf88a5821e3feef97cf7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that are identified as malicious redirectors, specifically luring users with 'free generator' and 'game hack' content. The document body, though partially corrupted, contains references to these lures and embedded URLs. The presence of multiple malicious links and the ML classifier's high confidence score indicate a strong likelihood of this document being used for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/406889139/coin-master-free-spins-link-download-game-hack In PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/block-best-robux_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
    • https://dribledasortegaucho.com.br/uploads/files/coin-master-hack-mod-apk-35-8_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
stream_003_off00004b36.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B36 24616 bytes
SHA-256: a1a383077d7594865650006c8df54e3a36188a12e388d3109626aab26865eb04
font_01_sfnt_off000083a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A1 19552 bytes
SHA-256: 298f7085aba57bba48c7dd8cf411b387bef4222a0604014399541a320cc3189c

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