Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a9268794908cfbc…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 12:29:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 14bc1c6adf9fa1c599c68340e1e43f69 SHA-1: b4ec72af15dbbbd05949542912b428f2b81e01c8 SHA-256: 1a9268794908cfbcc16e1d57b49fcb47448ba83a59d6b6e45e8e507c97538501
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a "doc body" that explicitly advertises "hacks" and "free items" for popular games, aiming to trick users into clicking malicious links. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many of which are likely malicious or lead to further malware. While no scripts were extracted, the presence of external links and the nature of the lures suggest a phishing or malware distribution attempt.

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/479516143/minecraft-windows-10-hack-client-2021-game-hack
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/free-robux-websites-2021_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/how-to-get-free-robux-generator_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/pubg-600-uc-price-in-pakistan_GM1330123889.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/roblox-hackprogamers-com_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/free-minecraft-accounts-2021_GM479516143.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/hack-roblox-bee-swarm-simulator-2021_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/how-to-get-hacks-on-roblox_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/legit-free-spins-coin-master_GM406889139.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/get-free-gold-cards-in-coin-master_GM406889139.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/how-to-get-a-free-dominus-in-roblox_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/claim-roblox_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/coin-master-free-spins-iphone_GM406889139.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/how-to-hack-another-player-on-roblox_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/roblox-hack-me-robux_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/roblox-games-free_GM431946152.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/coin-master-free-spins-and-cards_GM406889139.pdf
    • http://www.majdoorkalyansamiti.org/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000313e.bin
eebf43d4a1b9a4b40913251cca0bcc9bf75c571801692bc72e6a596048742b90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x313E 22152 bytes
font_01_sfnt_off00006241.bin
631b597843e25ada33697e5f3155324c1df943ac46bb1cd3b3d04c90488ab689		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6241 19180 bytes

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