Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eca806fb23b244d…

MALICIOUS

PDF

49.2 KB Created: 2021-05-15 10:03:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ffe64b8be232ba3693c77faf609e49da SHA-1: d809ca7b220feb2d8667a95727f6595c5e942892 SHA-256: 2eca806fb23b244d1093eac74f741c640ad7e20e734d3ab575c81ef1609f95cf
260 Risk Score

Malware Insights

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

This PDF document employs a fake CAPTCHA lure to trick users into interacting with malicious links, specifically pointing to a 'game hack' generator. The document contains numerous links to external PDFs, many of which appear to be SEO-optimized lures for free game resources or hacks. The primary malicious redirector URL is https://netcdn.xyz/app/431946152/roblox-arsenal-hack-script-pastebin-game-hack, which likely serves as a gateway to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.xyz/app/431946152/roblox-arsenal-hack-script-pastebin-game-hack In PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/lucky-patcher-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/abd-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/free-robux-only-username_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/coin-master-level-4_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2pml.sch.id/__statics/gudangsoal/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C9A 24924 bytes
SHA-256: 5d5d70cb20850334cc53ac5a7f9b42576c03339e860ae8619022de694ad75aad
font_01_sfnt_off00008580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8580 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00008f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F2A 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off00009c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C3C 18736 bytes
SHA-256: 7de8619ef554dfe1f2192c4aca90399aa0815846f6a8f71df992d0e349aeb038

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