Malicious PDF — malware analysis report

Static analysis result for SHA-256 526285e33204ab36…

MALICIOUS

PDF

35.4 KB Created: 2021-06-28 17:34:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a7226361d1e065691b36a9e167874968 SHA-1: fdab663cf4e3cb0fe6c117878a198298518d9565 SHA-256: 526285e33204ab362d3bbde0aa62053366ea722ce5ad037b88e682bfc7685336
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains numerous embedded URLs and a specific URL in the document body, all related to obtaining free in-game currency or cheats for popular games. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate a malicious intent to trick the user into downloading a payload. The document's content and heuristics strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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 http://netcdn.co/app/431946152/hacks-to-get-free-robux-trackid-sp-006-game-hack PDF link annotation
    • http://itc-nekretnine.hr/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/is-hacking-on-roblox-illegal-in-australia_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/how-to-hack-roblox-accounts-on-iphone_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-roblox-hats-no-model_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/hacker-roblox-se-tlprter_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/oneapprewards-com-roblox-hack-robux-picker-sessid-4s45w24_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-robux-bc-claims_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/descargar-roblox-hack-robux-infinitos_GM431946152.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/hack-for-pubg-uc_GM1330123889.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-unused-robux-codes_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_off0000303e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x303E 22612 bytes
SHA-256: 2967095754f689456a96f1e108b031747b51f2ac0be2bd1f3831f0bb120e439b
font_01_sfnt_off000062c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C9 19836 bytes
SHA-256: 5febbab0f7e6e7811eaeac52a91dbf393a493599b8556fb1b1a37cfc5b33a730

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