Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aeb2dba6baa7ae6…

MALICIOUS

PDF

45.3 KB Created: 2021-06-07 14:48:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bc72548c93db1da8d477047b4225b5ad SHA-1: 6886b657710750eac55e5c2cc5d5efac159c50a5 SHA-256: 0aeb2dba6baa7ae6bb954dd19d577a5b3e3ac761a65bffb7387b900c92873615
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or human verification prompt to trick the user into interacting with it. It contains an embedded URI pointing to a suspicious URL, likely intended to download a second-stage payload. The presence of multiple similar URLs suggests a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/431946152/smurf-backpack-gives-free-robux-generator-game-hack PDF link annotation
    • http://abdinusababellibrary.ac.id//repository/coin-master-levels_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/corn-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/tiktok-free-games_GM835599320.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/game-toolbox_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-spins-save_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051ae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51AE 25324 bytes
SHA-256: a58c9cb2b9116aab0a7c79c70e5e511d3f9e4cc4f780790c787917378da4843d
font_01_sfnt_off00008bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBA 19188 bytes
SHA-256: 4b83979d8f77f2cd2eda4a11386c4bbceccc085b72be84033c7d2d02a443be23

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