Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0fb3bca07ee00fb…

MALICIOUS

PDF

52.3 KB Created: 2021-06-04 02:39:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 9f0ebc97c0182eb60224540906ecb3e1 SHA-1: ff57ce21d4ec3c23901bf0ea3872bf470164158e SHA-256: d0fb3bca07ee00fbe719f516e06f1047097b496271ed5d5a32f475016f4b9155
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with a critical heuristic identifying a link to a 'free generator / game hack' redirector. The document body, though partially corrupted, also contains similar lure text and URLs. This suggests the primary goal is to trick the user into visiting a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9441

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 https://netcdn.online/app/431946152/roblox-shard-seekers-how-to-get-free-shards-game-hack In PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/coin-master-gold-cards-free-link_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/coinmaster-spins_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn4cirebon.sch.id/__statics/gudangsoal/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000054a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54A9 33120 bytes
SHA-256: c41b8bfbc1694941486c2555d95209cbad67601896a1b9a7ca91e0024c6f1cef
font_01_sfnt_off00009e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E6A 2844 bytes
SHA-256: a66b570a908761b39e6d9e18bcb667c353840a86c6a7db528f79d01abe6b23a1
font_02_sfnt_off0000a810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA810 18952 bytes
SHA-256: 48b87c0061c9233e95e544c489f4c921eae2456fb6c01a14509e3f02a252b358

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