Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab75b9f64bea156e…

MALICIOUS

PDF

46.7 KB Created: 2021-05-11 07:33:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: f79cca4d94c67cefff2b857c03a1fd0f SHA-1: dba6795c79b712770d32f8f215aac11ebaf64400 SHA-256: ab75b9f64bea156e387fa9f1f1608ec04653a427d162d9ddcf62916f876d91e0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirector infrastructure, specifically promoting 'free generator / game hack' lures. The document body and extracted URLs indicate a social engineering tactic to trick users into visiting these sites, likely for further malware delivery or credential harvesting. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/406889139/free-spins-coin-master-2021-game-hack In PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/daily-coin-master-link_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/xray-hack_GM479516143.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/open-coin-master_GM406889139.pdfIn PDF document text
    • https://e.mtsn4tabalong.sch.id/__statics/gudangsoal/files/coin-master-home_GM406889139.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_003_off00004b73.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B73 27136 bytes
SHA-256: 282ffb10547a74f006a5cf9a1e1ad874b94a408fb9a10c9219ff0f1d4d9ed298
font_01_sfnt_off00008a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2D 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000093df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93DF 18288 bytes
SHA-256: 9732707b45c862b7a6ef8ea2418900def9be3650c6b325207d932644f64622ad

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