Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4a6776f3ddaad17…

MALICIOUS

PDF

44.9 KB Created: 2021-05-12 22:31:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2dd473c46857b831fa3404970c975748 SHA-1: a695c9b89063006a497a752f76a5972ccc8a9273 SHA-256: e4a6776f3ddaad17e3dc6048863f646402871cb44a2aef412311d262f73954de
102 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many of which are structured as a link farm for SEO purposes, pointing to sites offering game cheats and hacks. The ML classifier strongly indicated maliciousness, and the presence of a call-to-action phrase further supports a deceptive intent. The document likely serves as a lure to drive users to download or access malicious content hosted on the linked domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.xyz/app/479516143/minecraft-hacks-xbox-game-hack
    • http://apostolosandreaslemesou.com/images/hacks-to-get-free-robux_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/free-robux-no-verification-needed_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/collect-free-spins-for-coin-master_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/free-coins-coin-master-haktuts_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/coin-master-link-today_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/free-magical-chest-coin-master_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/minecraft-pocket-edition-free-apk_GM479516143.pdf
    • http://apostolosandreaslemesou.com/images/how-to-get-free-robux-no-human-verification_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/free-spin-and-daily-news-coin-master_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/free-coin-spin-daily-link-coin-master_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/free-robux-websites-that-actually-work-2021_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/free-robux-without-human-verification_GM431946152.pdf
    • http://apostolosandreaslemesou.com/images/coin-master-hack-download-android_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/free-spins-coin-master-site-wwwquoracom_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/coin-master-free-spins-today-daily-links_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/coin-master-hacks-no-downloading_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/do-coin-master-hacks-work_GM406889139.pdf
    • http://apostolosandreaslemesou.com/images/free-minecraft-worlds_GM479516143.pdf
    • http://www.freenom.comHey
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cd6.bin
780f32fd4ce76f2f63476d5b70519831be17e9027f2af3592c4f6c4c3fece6c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x4CD6 28696 bytes
font_01_sfnt_off00008cda.bin
08d143bbdffcf64d63a65049f265cbb68e766144a512c2d0a1cb0386676e8729
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDA 18476 bytes