Malicious PDF — malware analysis report

Static analysis result for SHA-256 22eabbfec4495950…

MALICIOUS

PDF

48.1 KB Created: 2021-05-11 06:07:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: d939be4965f13a9f815779589938ff38 SHA-1: 8d0901bba8fe7dc27cbba0f14d9afe8a5f30ef22 SHA-256: 22eabbfec4495950c02f1999c56570977c9ea59d76acbdeb55055261de28f155
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as game hacks and free item generators for popular games like Minecraft and Coin Master. The document body and embedded links suggest a lure to download or access malicious content, likely leading to further malware or phishing attempts. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8715

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/479516143/how-to-get-free-mods-in-minecraft-game-hack In PDF document text
    • http://dana1157.com/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://dana1157.com/images/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • http://dana1157.com/images/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://dana1157.com/images/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004baa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BAA 25732 bytes
SHA-256: da7c5146eb2e23fa441e635fbbeae68d46bb840c9207f93eb99dcc25ba083d20
font_01_sfnt_off00008644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8644 2848 bytes
SHA-256: e494dfbc17a31b8b677e20f5e37602c538292163208a26380855969ce973a69b
font_02_sfnt_off00008ffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FFA 2800 bytes
SHA-256: 1756bf2370268b82899ca819fa059e16c32fca103da24d388e887c3e7a349852
font_03_sfnt_off000099f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99F2 18048 bytes
SHA-256: 95040d2bfc9286ed3808f083adb9ea42f8ede8dd0a13d8009d14cd8c99c6b7c0

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