Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a822aaeeea3dd87…

MALICIOUS

PDF

35.1 KB Created: 2021-06-26 01:26:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1253e631ac3755d3b9745361ff106199 SHA-1: 62c48d6f40ea17a7642fe959a35e303e2823ecdf SHA-256: 3a822aaeeea3dd879a1c9e58685af9888d32aae7f69050b599e789e03e6121e7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a malicious redirector, disguised as game hacks and cheats for popular games like Roblox and Coin Master. The primary lure is the promise of free in-game currency or cheats, which is a common social engineering tactic. The document's structure and embedded URLs strongly suggest it is designed to lead users to potentially harmful websites, likely for further exploitation or malware delivery.

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/roblox-paint-n-guess-cheat-game-hack In PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/roblox-hack-2021-forum_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/roblox-create-avatar-free_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/free-roblox-promocodes-that-stiil-work_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/pokemon-go-free-to-download_GM1094591345.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/escape-the-free-robux-scams-freecookie20214_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/coin-master-generator-free_GM406889139.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mts-sukaramaiatas.sch.id/__statics/gudangsoal/files/master-coin-free-link_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_off000034af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34AF 21488 bytes
SHA-256: bbd7afa7c04af627d2166d2292aae9b332d6944bbb6b012179d4933f120808b0
font_01_sfnt_off000063dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DC 19172 bytes
SHA-256: 3741dbc5d3e408b4476046f41ab0fb3fd1e625d60451f0af5b85ebf5c90cc766

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