Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e7bcc10ba4e0c3…

MALICIOUS

PDF

34.7 KB Created: 2021-07-01 01:29:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 569d0ffca219c42b24a131023f6ddbf5 SHA-1: e64b81aebd85a4c3b2d8cea278f4d5a1e57b7b10 SHA-256: d7e7bcc10ba4e0c3f7d9fa393154085c6f118eca686d94e2cbafa7dca45a6d41
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a redirector link, specifically targeting users with lures for game hacks and generators. The embedded URL, http://netcdn.co/app/431946152/wewgaming-com-roblox-hack-game-hack, is associated with known malicious redirector infrastructure. The document body and metadata confirm the nature of the lure, aiming to trick users into visiting the malicious site.

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/wewgaming-com-roblox-hack-game-hack In PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-daily-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-hacks-2021-free-robx_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/cheat-code-roblox-pc_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-speed-hack-2021-february_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/this-obby-will-get-you-free-robux-without-password_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB1 22368 bytes
SHA-256: 5f99350f50084660cce6fa985e225e7dba1d13b344804b4168243046cc78195a
font_01_sfnt_off0000619c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619C 19400 bytes
SHA-256: 52d6227bfca672f98bae7574a0ab67cdb9347c73b3e161b83f63fb579f71939d