Malicious PDF — malware analysis report

Static analysis result for SHA-256 9715724637f7c832…

MALICIOUS

PDF

36.1 KB Created: 2021-07-09 16:21:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a17054008000536c31085ec07d5d2c5d SHA-1: 59c6ab94be287937f0055df6ec47a9b22e515f9c SHA-256: 9715724637f7c83279e58355ca64f65462851c54be6e01a6d25415574f530c98
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating it is a malicious redirector lure, specifically for game hacks. The document body and embedded URLs point to a link that is known to be malicious infrastructure. The primary purpose appears to be directing users to a potentially harmful site under the guise of offering game cheats.

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/406889139/coin-master-hack-app-download-free-game-hack In PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/i-hacked-it-roblox-piano_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/robux-free-illimited_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/pubg-uc-ycom_GM1330123889.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/get-more-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2-bondowoso.sch.id/__statics/gudangsoal/files/cheats-for-roblox-saiyan-simulator-2_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_off0000356a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x356A 22916 bytes
SHA-256: b7c92c96fa27ca29d65baee8d04fa80b868a0d64962bc6399cfb152b5bacfc11
font_01_sfnt_off000068a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A6 18924 bytes
SHA-256: 1cf9981fa265b31f69f9f07c7993afa1bce844b0d5c7655559eae79f3315a78a

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