Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfd86875997eb942…

MALICIOUS

PDF

27.4 KB Created: 2021-05-10 18:11:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 80fb12a950181ffb2bc1add6965ba385 SHA-1: 1623952807fbb54673a3bf05a7d998cf2b8db6dd SHA-256: cfd86875997eb942bd58ba482fb90c432d35bdf4dbedf1861750e0e0a08ba042
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9760

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/431946152/free-roebucks-game-hack PDF link annotation
    • http://202.182.59.89/perpus//repository/como-hackear-coin-master-iphone_GM406889139.pdfPDF link annotation
    • http://202.182.59.89/perpus//repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://202.182.59.89/perpus/repository/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://202.182.59.89/perpus/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://202.182.59.89/perpus/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://202.182.59.89/perpus/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://202.182.59.89/perpus/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://202.182.59.89/perpus/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://202.182.59.89/perpus/repository/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://202.182.59.89/perpus//repository/free-robux-codes-generator-no-verification_GM431946152.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
font_00_sfnt_off000020b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20B3 19380 bytes
SHA-256: abd72cd7c2d7288d79c7a2c64ce3fca9453a0e4496c52586099ec3fe1e938340
font_01_sfnt_off0000493e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x493E 17972 bytes
SHA-256: 60768b29a45169123c775a336c15772b774497df18e699e4ee663c92ad74688c

Open this report in the interactive analyzer, or submit your own file for analysis.