Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdf1e510ab2485d4…

MALICIOUS

PDF

35.1 KB Created: 2021-06-18 18:06:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: aca0ff003279e9d1eee0581df255d877 SHA-1: b5ed7ebfd9af50e56c6b206b02fb0fc85cba9baa SHA-256: fdf1e510ab2485d4eca0f96e61bbe16a84e02588fc1dd2d7f609385388861afb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to malicious infrastructure, specifically a link related to 'game hacks' and 'free generators'. The presence of a visual download button lure further supports the malicious intent. The primary attack pattern involves social engineering users into clicking these links, likely leading to further malware downloads or phishing attempts.

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/is-friending-a-roblox-hacker-bad-game-hack In PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-rixty-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-place-copy-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-roblox-clothing-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-mods-hacks-money_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-code-card-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-hack-peoples-roblox-account_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-make-a-roblox-skid-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/jailbreak-roblox-hack-dll_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-infinity-rpg-cheat-codes_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-sword-fighting-tournament-points-hack-2021_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_off00003296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3296 22184 bytes
SHA-256: 511f4c2efad99ee05a14727aac45b47a48b6e93759f493d94c0dd6ece4983432
font_01_sfnt_off000063e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E6 19112 bytes
SHA-256: b4f40a9159211f9d5e270f66fb0c335c185ce527a3d12cee42dd9d327e925ac1