Malicious PDF — malware analysis report

Static analysis result for SHA-256 a806dd0290981e53…

MALICIOUS

PDF

35.8 KB Created: 2021-06-29 16:17:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: ae8a970b3a8280a7e13e65e9d638e00f SHA-1: 0d0ba1b0333d40368248512c1fc29546e3666849 SHA-256: a806dd0290981e5387b60ab17ff43739f0690e69c0a4c282dd54ac80adfa07c5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links disguised as download buttons for game-related cheats and hacks, directing users to malicious redirector infrastructure. The primary malicious link identified is http://netcdn.co/app/431946152/green-hacker-tshirt-roblox-game-hack, which is likely part of a campaign to deliver malware or lead to phishing pages. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/green-hacker-tshirt-roblox-game-hack In PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-working-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-piece-hack_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-hacked-to-stop-getting-killed-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/roblox-how-to-get-everything-free-in-the-catalog_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/arcane-adventures-roblox-14-hack_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/robux-hack-generator-2021_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-get-free-robux-2021-on-a-chromebook_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/hack-robloxco-2021_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/infinite-jump-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/pubg-uc-and-bp-generator_GM1330123889.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_off00003347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3347 23016 bytes
SHA-256: f1461c5009375ecbbfca9c6e8086864f65b698a9e4e41a2738a7bf198ff1543e
font_01_sfnt_off000066e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E9 19044 bytes
SHA-256: 3e86b095d7dcdcbfdd7820545c3a912d854ba24bf91f80335b41bc3be72b12bd

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