Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddfa5f723a272ed8…

MALICIOUS

PDF

36.0 KB Created: 2021-05-21 19:07:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 8602630307c88f26ea4a076f3d1aac1f SHA-1: 709238efcd38e8936cf5be6acb953852d9c7d781 SHA-256: ddfa5f723a272ed85a474332933712dfc5d6be630d058c449c582654ea408dae
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks and free generators. It also employs a remote support tool pretext, suggesting a social engineering attack to gain user trust or facilitate further compromise. The document body and embedded links indicate a clear intent to trick users into downloading potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 5

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/479516143/minecraft-online-free-download-game-hack In PDF document text
    • http://stpc.it/images/make-robux_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/pokemon-go-free-accounts-level-40_GM1094591345.pdfIn PDF document text
    • http://stpc.it/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/free-robux-without-downloading-anything_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
stream_002_off0000344a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x344A 24384 bytes
SHA-256: 0878721bd28b2b9d94eacc030c4b01cfec71b025d5d4fc5431adaaebe428e2d6
font_01_sfnt_off00006b61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B61 18292 bytes
SHA-256: a2a63f8c18687518d260bdaa10b8e62a526b9456f69b3d2706eff3b892369b89

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