Malicious PDF — malware analysis report

Static analysis result for SHA-256 05004584a43fa735…

MALICIOUS

PDF

35.6 KB Created: 2021-07-09 08:08:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 56206bafdc709e0de8509d7169c01d39 SHA-1: 1a99fcf3a89a1630ab261b3000568e7d5f15b187 SHA-256: 05004584a43fa7352a72a1523dab6daf65e17108714d1f7a3558f4f49d21c903
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links to external websites, many of which are related to game hacks and cheats. The ML classifier strongly indicated maliciousness, and the presence of a 'download button' heuristic further supports a malicious intent. The document's content and linked URLs suggest a social engineering tactic to trick users into downloading malware or engaging in other harmful activities.

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/406889139/coin-master-unlimited-spin-hack-game-hack PDF link annotation
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/how-to-cheat-lots-of-robloxs_GM431946152.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/free-robux-code-jpg_GM431946152.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/free-coins-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/free-robux-hack-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/pubg-uc-kaise-khariden_GM1330123889.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/coin-master-free-link-blogspot_GM406889139.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/113-hacked-client_GM479516143.pdfIn PDF document text
    • http://elearningku.mtsn1kuningan.bid/__statics/gudangsoal/files/roblox-hack-that-makes-you-turn-into-flying_GM431946152.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_002_off00003492.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3492 22680 bytes
SHA-256: 317a78cd1b754eff255c0631a4cedc219d4838fbf522075cddd56dbdca14b0d2
font_01_sfnt_off000066c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C3 18876 bytes
SHA-256: 358dc4db68bada18430270b8c441743941245708799d83374dd1d97c12f95da1

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