Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ceee7c288f0980e…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 20:03:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5ba8455c2974890c751a47a5f491e77e SHA-1: c862a558a1fc037e2b03a8b36b9616f8b68c38f8 SHA-256: 1ceee7c288f0980e13acc8f2d2679d9ec3849ba4351bec47a247bffe7d80a7b4
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which are SEO-optimized and point to other PDF files, suggesting a link farm designed to attract users searching for game hacks and cheats. The ML classifier and PDF heuristics strongly indicate malicious intent, likely to drive traffic to sites hosting malware or phishing content. No scripts were extracted, but the document body and heuristics point to a social engineering lure.

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 http://netcdn.tw/app/431946152/free-private-server-roblox-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/how-to-change-your-roblox-name-on-ipad-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-make-a-dll-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/robux-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/update-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-get-free-follower-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-gray-pants-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-daily-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/what-is-pubg-uc-carding_GM1330123889.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-pokemon-brick-bronze-cheat-to-level-up-faster_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-someone-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-accounts-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-roblox-jailbreak-walls_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/legit-roblox-hacks_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_off0000323c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x323C 22932 bytes
SHA-256: b6f3b64bbfc18133197ecade5cda396111127c50b8963eedd72622fc810b2d49
font_01_sfnt_off00006591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6591 19144 bytes
SHA-256: f5f684d15b05f86463c6f7a6c56859a60ed5129c00de4d7324adcfa10c590027

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