Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2f658c9b3c2957e…

MALICIOUS

PDF

34.9 KB Created: 2021-06-18 15:05:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0c35d78a87c3fef88813b4485d6ee98b SHA-1: c05ad132ffb6e638ad257f740ba60566cf45df80 SHA-256: b2f658c9b3c2957e70dada93f57dd52128163a3b00a02ffeead891f1c94d0450
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 0.9980

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 http://netcdn.co/app/431946152/hack-prison-life-roblox-2021-pc-dansploit-game-hack PDF link annotation
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/roblox-hack-robux-2021-subscribe_GM431946152.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/pokemon-go-free-raid-pass_GM1094591345.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/free-draw-roblox_GM431946152.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/roblox-phantom-forecs-hack-scripts_GM431946152.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/how-to-hack-in-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • https://maniclampungtimur.sch.id/__statics/gudangsoal/files/roblox-free-robux-website_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
font_00_sfnt_off00003080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3080 22136 bytes
SHA-256: e72e2d1eb8d0fb4675ae29c76882c19886b07fe0c77fe7383c136441710d4165
font_01_sfnt_off000061a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A1 19592 bytes
SHA-256: 7c265736c40e10939fcd071ee17eefc55e1243698d7ce299f4e1eae5a7ae677f

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