Malicious PDF — malware analysis report

Static analysis result for SHA-256 88ac01eecb3d5db1…

MALICIOUS

PDF

34.3 KB Created: 2021-06-28 10:11:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e2e0a6d873d6f17be3d76fdc0259be42 SHA-1: 1d8554f7d036dc99cfa9b04b962e4169f3ee6afd SHA-256: 88ac01eecb3d5db1aea61188d19ccbdbf1f8a967a895b0d5731c08dab4f91e6f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that lead to a known malicious redirector, disguised as a lure for game hacks and free currency. The document body and extracted URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites. While no scripts were explicitly extracted, the nature of the PDF and its embedded links points towards a social engineering attack, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/hack-pia-para-roblox-game-hack In PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-robux-images_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/tiktok-free-100-fans_GM835599320.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-2021-february_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/coin-master-freebies_GM406889139.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/blockland-for-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/how-to-win-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-roblox-haur_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-roblox-games-you-can-play_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/2021-free-spins-coin-master_GM406889139.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_off00002f7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7B 22572 bytes
SHA-256: c6d00168054fda8af4acbc8161356f849d4df5dea5d75182b530ec8a64790d20
font_01_sfnt_off00006139.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6139 18932 bytes
SHA-256: fa8c7b5ba77a35ad4416d60b9809a334c1ca37732197108c3da9cc252e19ac7d

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