Malicious PDF — malware analysis report

Static analysis result for SHA-256 59f279253e898ce0…

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 20:08:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 79b1fa91f3312c6b29fa413863a813be SHA-1: 9cfaf50a7ad422178ebc5130d0f91f8f085fd3ee SHA-256: 59f279253e898ce04eeabca99718094d4906b7433617dc4a46c46d78bb25342e
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.tw/app/479516143/minecraft-svg-images-free-game-hack PDF link annotation
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/roblox-hack-stealing-items_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/tiktok-free-7-day_GM835599320.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/free-wings-promo-code-roblox_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/hhow-to-hack-on-roblox-wild-savannah_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/roblox-printables-free_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/roblox-hack-2021-android_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/coin-master-map_GM406889139.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-perm-admin-on-any-roblox-game-free_GM431946152.pdfIn PDF document text
    • https://learning.mtsn1sukabumi.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-and-coins-unlimited-free_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_off0000319e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x319E 22364 bytes
SHA-256: dd06f3485fdb55df532491c556ba3f5b576aa7b8229523ad9a599980e33343c8
font_01_sfnt_off000062f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F9 18232 bytes
SHA-256: a09b643334d2e6be4f3f41432578bfd2746235ab347d952591db22e0a7ac2c60

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