Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f64904e0fea134a…

MALICIOUS

PDF

48.6 KB Created: 2021-06-11 06:21:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 2ec236397df0fbfd2f71989efe5ba9de SHA-1: db0fce9468a20154a2607aacf9f21487f1e604fd SHA-256: 8f64904e0fea134a1cb6ceb0c8b79fc0e997af9fdbc548d80a867ee0222c4876
82 Risk Score

Malware Insights

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

The file is a PDF that contains embedded URLs and impersonates Microsoft to trick users into clicking on a link. The link leads to a domain that offers cheats for games, suggesting a credential phishing or malware download attempt. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.tw/app/431946152/cheat-roblox-phantom-forces-game-hack.
  • 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/cheat-roblox-phantom-forces-game-hack PDF link annotation
    • https://jdlgroup.ca/images/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/roblox-microsoft-rewards_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/roblox-wifi-hack_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/wurst_GM479516143.pdfIn PDF document text
    • https://jdlgroup.ca/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://jdlgroup.ca/images/assassin-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/pubg-uc-kaufen_GM1330123889.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-do-hack-piano-roblox_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://jdlgroup.ca/images/daily-free-spins_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/pokemon-go-free-spoofing_GM1094591345.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004ec2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EC2 27620 bytes
SHA-256: 1ea4b86e10778367f80f31f3405f9b51e0db1bd86d6c9772fdb169f29abf1815
font_01_sfnt_off00008ef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF8 3144 bytes
SHA-256: a999dbb09164760a857779d401ebaec2c7e5b8e1fd959000aa448c89631a88c5
font_02_sfnt_off000099bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99BB 18860 bytes
SHA-256: 8b6fe1699ed9aa150ef47d928f3ac679dcaa1889c0534b0c6c6b0b277cfe90a3

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