Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4684c20dda95310…

MALICIOUS

PDF

33.5 KB Created: 2021-07-03 18:01:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fefad234621c5418c3a107a74cbbb4b2 SHA-1: b7e8be8b9cc44941f7e5fe75fbde394dc651921a SHA-256: e4684c20dda9531029288bdecab3e3e3c9c101b313bf56e5e1b10e4b58a4732a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and a document body that suggests a lure for game-related cheats or currency. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and an IP literal in the document further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the overall pattern suggests a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-connection-lost-game-hack
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-heaven-free-spins_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/mcpe-master-hack-unlimited-coins_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/free-robux-roblkox_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/free-robux-websites-that-actually-work-2021_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/boost9-com-roblox-hack_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/get-anything-free-catalog-roblox-pastebin_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/free-robux-codes-download-2021_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-free-spins-blogspot_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/minecraft-hacked-client-18_GM479516143.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-free-cards_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/free-form-studio-roblox_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-free-coins-facebook_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/free-roblox-gfx-artists_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/free-roblox-girl-clothes_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-hack-online-cheat_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/minecraft-marketplace-free_GM479516143.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003030.bin
34561fcef5b9cec5a1643b203aeb7a8b429eb04c342f9e20a03a0dd3ddf28ecf
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3030 22204 bytes
font_01_sfnt_off00006169.bin
a76b435a66663bc960d26f3f6b43f7089cbbf554bd18db08d117cbb299e70e3d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6169 17836 bytes