Malicious PDF — malware analysis report

Static analysis result for SHA-256 a03844da47a3731c…

MALICIOUS

PDF

41.4 KB Created: 2021-05-24 02:12:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 77ec8fb4fd07224f05c8de7309ef24f0 SHA-1: 2475b6c1861a21c5bad3dbe8151bd86d1159ccb3 SHA-256: a03844da47a3731cfdd9ac33118f555eba19f5f544cb8b3e37456c8634e456cd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including one identified as a malicious redirector. The document body explicitly mentions 'How To Hack Peoples Roblox Accounts' and includes a call to action to access a 'Roblox Generator', indicating a lure for a scam or potentially a phishing attempt. The presence of embedded URLs and the nature of the lures strongly suggest a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8074

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/how-to-hack-peoples-roblox-accounts-game-hack In PDF document text
    • https://bancroftandsons.com/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-robux-com_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
stream_002_off00003328.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3328 26880 bytes
SHA-256: 5e9060b059370c0377fa307a40c383ac2e0ab509860340810943e29ece6a0a48
font_01_sfnt_off000070e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E2 4008 bytes
SHA-256: 515da38a799acdefd039af3a0dfb6ec4815b572058c9bd492ec5a77cd7658593
font_02_sfnt_off00007e6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E6D 18920 bytes
SHA-256: cd7407ef9aef6c4c50b1fdf01e763fd2e22944ade267215dee183f168e7b87f5

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