Malicious PDF — malware analysis report

Static analysis result for SHA-256 3561f4ac14121726…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 15:01:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e365b678d7c7f009776136492defdc15 SHA-1: 6237ca25c7dbbe916ccea1024284ffa57fbd788b SHA-256: 3561f4ac14121726620cc28d34b7e07159c4edf4b0a94d066d33f44e68e799b1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a visual call-to-action, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. The document body, though partially corrupted, contains references to 'free spins' and 'robux hack', indicating a lure for game-related cheats or currency. The presence of external URIs and an IP literal in the document points to the download of further malicious content or redirection to scam sites.

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/406889139/50-free-spins-coin-master-links-game-hack
    • http://202.56.165.220/digilab/repository/robux-hack-no-survey_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-free-pet-snacks_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/john-doe-hacker-on-roblox_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-to-get-free-robux-real-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-robux-codes-2021_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coin-master-free-soins_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/free-rare-cards-for-coin-master-christmas_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/abs-t-shirt-roblox-free_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-spin-link-for-coin-master-game_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/how-to-get-free-robux-10-website_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/minecraft-windows-10-hacked-client_GM479516143.pdf
    • http://202.56.165.220/digilab/repository/roblox-cheating-tool_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/roblox-jeailbreak-hack_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/coins-master-hacks_GM406889139.pdf
    • http://202.56.165.220/digilab/repository/how-to-get-free-robux-on-roblox-ios_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-obfuscator-roblox_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-robux-no-email-no-download_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/free-space-in-roblox-bubble-gum-simulator_GM431946152.pdf
    • http://202.56.165.220/digilab/repository/how-to-hack-roblox-accounts-without-inspect-element_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000033d5.bin
626792c8bbc3a465568140209f296adf039dc50cf34418dae426dde2bbb8ae43
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33D5 22836 bytes
font_01_sfnt_off0000671d.bin
7cb7b4aa4fe43c538a35ca12efa1607bb190a4a0226e989e68a2df4e99bf3741
pdf-font-stream PDF embedded font (sfnt) at offset 0x671D 18648 bytes