Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6b4167082bee1fb…

MALICIOUS

PDF

33.8 KB Created: 2021-07-05 17:52:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 1a131129bae30968103d568edca74402 SHA-1: 6184958b1d765ed2d616c1e99f3de0be02a4d098 SHA-256: c6b4167082bee1fbd0afbe61c2e2756ca251ae722096719ac9c4f55c62c48764
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/835599320/what-is-tiktok-make-your-day-game-hack. This redirector is presented as a 'free generator / game hack', indicating a social engineering lure to entice users to click. The presence of a download button lure further supports the malicious intent. No scripts were extracted from this sample.

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.tw/app/835599320/what-is-tiktok-make-your-day-game-hack In PDF document text
    • https://library.sman1berau.sch.id/repository/free-codes-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/pubg-uc-or-codashop_GM1330123889.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/hack-para-ninja-assassin-roblox_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-computer-hack_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/pokemon-go-free-walk-hack_GM1094591345.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-add-on_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-pokecoins-in-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7D 21944 bytes
SHA-256: 5faf5d78d46f4ec1908fdce1f5d949b678d2cdb81f751d0ca4c6cefe5b4f4471
font_01_sfnt_off00005ef9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF9 19016 bytes
SHA-256: b4489e41ffa93cd0b7efbb020ca00b003ddb8aa104acd65e27ad926574777075

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