Malicious PDF — malware analysis report

Static analysis result for SHA-256 20ab3f0b0826a96d…

MALICIOUS

PDF

36.2 KB Created: 2021-07-03 12:02:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9b41f62a976c7e667a91f2dd2374d05b SHA-1: a8e387aa932143a4ffe6f43d87d85aa9279b9512 SHA-256: 20ab3f0b0826a96dc94116d0be916f386cc63f7f59a2e585d539daf17c783bd2
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a document body that explicitly advertises 'hacks' and 'free items' for games, indicating a lure to download malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs, including one pointing to a raw IP address, reinforces the malicious intent. No scripts were extracted from this sample, but the document structure and embedded links suggest it is part of a phishing or malware distribution campaign.

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/431946152/hack-de-roblox-traspasar-paredes-game-hack
    • http://202.56.165.220/digilab/repository/coin-master-free-400-spin-link_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/free-robux-no-human-verification-and-no-application-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-jilbreak-money-free_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-what-to-do-when-you-get-hacked_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/cheat-engine-fighters-beta-how-to-level-up-fast-roblox_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/which-cheat-engine-address-is-robux_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-com-hack_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-roblox-promo-codes-no-human-verifycation_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-roblox-premium-accounts_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-robux-cards-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/descargar-roblox-para-pc-hackeado_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/is-roblox-a-free-game_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-robux-site-legit_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-spins-on-coin-master_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/free-robux-sites-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-do-u-get-free-robux-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-reach-hack_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-heaven_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/free-robux-without-any-verification_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-free-spins-link-facebook-page_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033b9.bin
4b9e75cd9213c3d05cac8515995ebbd262f24d5f7bd59dd1b14c276ce8ea044c
pdf-font-stream PDF embedded font (sfnt) at offset 0x33B9 23044 bytes
font_01_sfnt_off000067b6.bin
7a0421476f26d85d1017288ee016cd5d596c204dc99552acbd5c179d5be71621
pdf-font-stream PDF embedded font (sfnt) at offset 0x67B6 19328 bytes