Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58766f0fc7f9025…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 04:24:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5d16827d472c278c8c9b0605084c3553 SHA-1: 3e7ba53dcad679dbb1809571be83d4c60abc182a SHA-256: c58766f0fc7f90259eb38c0eab8f57d25a5584efb6e6b657dc7fb634fe034ae7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and a document body that attempts to lure users into downloading free game hacks and in-game currency. The ML classifier strongly indicates maliciousness, and the presence of multiple URLs hosted on an IP address suggests a distribution point for further malicious content. No scripts were extracted, but the document structure and embedded URIs point to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/try-minecraft-free-game-hack PDF link annotation
    • http://118.174.0.244/UserFiles/File/minecraft-java-free-account_GM479516143.pdfPDF link annotation
    • http://118.174.0.244/UserFiles/File/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-1701-20_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/114-4-hacks_GM479516143.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
stream_003_off00004d23.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D23 25228 bytes
SHA-256: f5ce6557166a453f12821af5e88898adc8ff7efc6adfa3e88236ad236aa7e122
font_01_sfnt_off0000867e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x867E 17748 bytes
SHA-256: 107932d4c819bf12e68df3d86f91d46cdcad91a8442b853cf72bc94cc41b7ea1