Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc5a69f8ac662f2…

MALICIOUS

PDF

32.6 KB Created: 2021-07-07 14:39:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 7058f8dd26068923936466ff598e5147 SHA-1: 2ca0746b27658019a1ddb156bd7a29b7a6e9b749 SHA-256: 5cc5a69f8ac662f26ec8476e6fb3ab807164342eb4e4cc8af87e42eb9cd3c765
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/479516143/mcpe-game-hack. The document body and heuristics suggest a lure for game hacks or free in-game currency, which is a common social engineering tactic to drive users to malicious sites. No scripts were extracted, but the presence of embedded URLs and the redirector link strongly indicate a phishing or scam 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.tw/app/479516143/mcpe-game-hack In PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/how-to-change-your-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/robux-offer-wall_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/free-robux-link_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/i-was-hacked-by-liepa20212021910-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/roblox-what-to-do-when-hacked_GM431946152.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/cm-spins_GM406889139.pdfIn PDF document text
    • http://elearning3.mtsn3subang.com/__statics/gudangsoal/files/swat-simulator-roblox-hack_GM431946152.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_off00002f17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F17 21576 bytes
SHA-256: 660bae26577dd3c495687532327ae6ef1222e95d7f3f9c67f77056023843626e
font_01_sfnt_off00005e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E4F 17808 bytes
SHA-256: bb08dbf34a52122f895504de6d0f043fb34325a43da687a59d3db3469e279ba9

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