Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d2f33532ee67e7…

MALICIOUS

PDF

45.8 KB Created: 2021-05-17 10:00:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8613e941874a124f34275f5c39f1fea5 SHA-1: 4089e875740d6a7ac9f375bb668be71b637be1ba SHA-256: d4d2f33532ee67e7e11d30891a14bf9a3ce678cefbf064409270f74d2968448e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as "free generator" or "game hack" lures. The document body, though partially obfuscated, contains references to "Robux Hacks 2021" and lists numerous URLs that appear to be part of a phishing or scam campaign. The presence of these links and the heuristic firings strongly indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/robux-hacks-2021-game-hack In PDF document text
    • http://condit-pack.com/images/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-roebucks-com_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://condit-pack.com/images/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://condit-pack.com/images/how-to-hack-m-coins-mcpe-master_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/www-free-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/bloxpink-free-robux_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48E4 25460 bytes
SHA-256: af16dcae948c00e3bee5ab45d1809a77ac038d8f2e66a1be2c7bf73c99779937
font_01_sfnt_off00008374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8374 3500 bytes
SHA-256: e49a868379cd3c37e631c5a53c010e21f38d803532a2b8417aee82315d4e8634
font_02_sfnt_off00008f15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F15 18648 bytes
SHA-256: 03ab0df94635c5ebeb05191dd2fda9aa410ed650044dc459735f8f7cc99ee4ee

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