Malicious PDF — malware analysis report

Static analysis result for SHA-256 65b1d8612d82e7ef…

MALICIOUS

PDF

34.0 KB Created: 2021-07-07 17:10:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 32f1b1a2c1f43377896fe0b18f3d5958 SHA-1: 71b0a4624a8f050edc19fb09ce50487dce3d63a9 SHA-256: 65b1d8612d82e7efbf887b8f10b33488d03dc52fc4c0301a47597b27bb980cfc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically targeting users interested in game hacks and cheats. The primary lure appears to be related to Minecraft and Roblox, with the initial link pointing to 'netcdn.tw'. The document body and heuristics confirm the presence of malicious redirector links, indicating a phishing or scam attempt to lead users to potentially harmful content or further malware downloads.

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/what-is-a-minecraft-client-game-hack In PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/1-robux-every-second-hack-robuxian_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/roblox-free-lvl-6-exploit_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/how-to-get-free-faces-promocodes-on-roblox_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/free-shoulder-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/coin-master-free-spin-app-apk_GM406889139.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/free-roebucks_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/hack-youtube-roblox-game_GM431946152.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/free-tiktok-hearts_GM835599320.pdfIn PDF document text
    • http://raqam.net/uploaded_files/userfiles/files/free-robux-hecku_GM431946152.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_off00002fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB3 22644 bytes
SHA-256: dcea9c4c4515e17fe1f25ba60ed7e71c690d221b2b95c36e1040c1cbf6f137fe
font_01_sfnt_off0000624e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624E 18292 bytes
SHA-256: cc8de4d5cd269b7874ace7bd1df7c96e4a27e52416941d0a4b2fd16f13afc98a

Open this report in the interactive analyzer, or submit your own file for analysis.