Malicious PDF — malware analysis report

Static analysis result for SHA-256 bac4deb712daba9c…

MALICIOUS

PDF

38.2 KB Created: 2021-05-22 07:05:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 3c44a1a2bbbe33720f13f4a16b95667a SHA-1: 75b7cc58597b32f2dba75dede2e9c44c26dd81b5 SHA-256: bac4deb712daba9c659e8c55fb99e3c4d76746c01ee9ff1fa08e3f9acc35eed4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generators' and 'game hacks'. The primary lure URL is https://netcdn.xyz/app/479516143/free-minecraft-server-maker-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites, likely for further payload delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/479516143/free-minecraft-server-maker-game-hack In PDF document text
    • http://nep-operationalmanual.com/images/pokemon-go-free-6th-gen_GM1094591345.pdfIn PDF document text
    • http://nep-operationalmanual.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://nep-operationalmanual.com/images/coin-master-hacks-no-surveys_GM406889139.pdfIn PDF document text
    • http://nep-operationalmanual.com/images/robux-free-com_GM431946152.pdfIn PDF document text
    • http://nep-operationalmanual.com/images/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000334b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x334B 24880 bytes
SHA-256: a60e3f94f6939c2596bebef0e7af0051089c9f03dd26e28e52f8f671ed13ce91
font_01_sfnt_off00006b38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B38 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000074e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E9 17852 bytes
SHA-256: a2113846211f941d41962086a33418b46c13efddcea93467eebdb757cad7d920

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