Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7900cce88211dd3…

MALICIOUS

PDF

50.9 KB Created: 2021-05-11 21:03:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9b96618fc242cacc418ad1e4595bba13 SHA-1: 085dac57d6012af2785cc6ca8bc7b705528cc8aa SHA-256: a7900cce88211dd3a9271c89217f6f97e8e1180001453bac5be77c82ae095c95
82 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 0.8594

Heuristics 4

  • 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.
  • 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/406889139/coin-master-links-to-get-free-spins-game-hack PDF link annotation
    • http://www.lacarla.dk/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/roblox-www-com_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://www.lacarla.dk/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/where-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/roblox-website-robux_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://www.lacarla.dk/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F8 28088 bytes
SHA-256: 649434532cda7cbfa997428f3736abc18f039f0df3e6237b5092603ebf879633
font_01_sfnt_off0000892c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892C 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00009312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9312 7332 bytes
SHA-256: d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d
font_03_sfnt_off0000a52b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA52B 18056 bytes
SHA-256: d6f48365c8184d813f3f97722928ecdf71d9bd5c6eacb29ace11fc0c34dd539a

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