Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1e177cd8bb0f3b0…

MALICIOUS

PDF

35.2 KB Created: 2021-06-28 18:44:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e7c89847cf1c324fa7d9a6ba52ac1ff5 SHA-1: 103b0857859ff370c9ba03c6259bdccf9c38cfc3 SHA-256: c1e177cd8bb0f3b0f6c77d203f9bc8336c936a16c49c6dba3e56a1348d24731f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a redirector URL, which is associated with malicious activity and lures users with game-related cheats. The document body and embedded URLs suggest a phishing attempt disguised as a free generator or game hack. The ML classifier also strongly indicated maliciousness.

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/buy-anything-on-roblox-for-free-game-hack In PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/would-you-get-banned-from-roblox-if-you-hacked_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/cheat-engine-fighters-beta-how-to-level-up-fast-roblox_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/free-robux-codes-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/roblox-shard-seekers-cheat_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-with-inspect-2021_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/how-o-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/roblox-nsfw-hack_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/how-to-install-lego-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/roblox-hacks-project-alpha_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/flame-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/diamond-hack-roblox-royale-high_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/roblox-hide-and-seek-extreme-hack_GM431946152.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • https://e-learningman17jakarta.com/__statics/gudangsoal/files/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00003118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3118 22656 bytes
SHA-256: 283b5f6c202209a8ea8bc27cb755fb7de247700c8f5015ae47e326c81233f4e2
font_01_sfnt_off000063e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E5 19360 bytes
SHA-256: f3c2007ac5f04493d3649b4a001f8f88eee076dc34402d6a6536c3887f691d70

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