Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e41ba8eabdd53d6…

MALICIOUS

PDF

34.1 KB Created: 2021-06-26 05:39:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ee2d08d65835e31c98cb182fbc4dd7ed SHA-1: 6a227dd5e1f8cfbcc2118dcf681c98981ca84451 SHA-256: 5e41ba8eabdd53d64cc32b7bc8722b75ad47f6fdbd177b8064cea6647c1512af
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game hacks and generators to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. No scripts were extracted, but 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/free-roblox-jailbreak-games-game-hack In PDF document text
    • https://allpromise.com.tw/image/data/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-robux-no-servery_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/does-pubg-uc-generator-work_GM1330123889.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/hacks-on-robloxs_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/minecraft-pe_GM479516143.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/get-robux-now-free_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/coin-master-free-coins-and-spins-online-tool_GM406889139.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/roblox-royalty-free-rap_GM431946152.pdfIn PDF document text
    • https://allpromise.com.tw/image/data/files/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00002d96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D96 22484 bytes
SHA-256: af9135b411d1c88fb482ab1893310fdbc32ad731f42d628970ea2437ff70e001
font_01_sfnt_off00005f87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F87 19368 bytes
SHA-256: d8665c93d7802a2360ae70fed3f8a75be8ca39436a31d43d62541a2e607e29e8

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