Malicious PDF — malware analysis report

Static analysis result for SHA-256 e98a068d32bcc5d5…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 09:32:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: e080a66ff4c5f2fc0049a8a2609ed3f6 SHA-1: 1a7bb5fb59b3bf4b80b6e7fa2f9153857e1d524c SHA-256: e98a068d32bcc5d5ac9333549a55936a52766cf3a05f99ae8302c0c095d13fef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on offers for free in-game currency or hacks. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The document body and embedded URLs strongly suggest a social engineering pretext to drive traffic to potentially malicious sites.

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/406889139/free-spins-for-coin-master-app-game-hack In PDF document text
    • https://pspmrsmbpulau.com/opac/repository/isuku-roblox-free-shop-hose_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/how-to-get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://pspmrsmbpulau.com/opac/repository/roblox-net-hack_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-roblox-script-executor_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://pspmrsmbpulau.com/opac/repository/roblox-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/pokemon-go-free-or-shadow-mewtwo_GM1094591345.pdfIn PDF document text
    • https://pspmrsmbpulau.com/opac/repository/roblox-free-chemis_GM431946152.pdfIn PDF document text
    • https://pspmrsmbpulau.com/opac/repository/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.pspmrsmbpulau.com/opac/repository/cheat-speed-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-minecraft-com_GM479516143.pdfIn PDF document text
    • https://pspmrsmbpulau.com/opac/repository/roblox-free-candy-decal_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/get-robux-for-free-2021_GM431946152.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
stream_002_off00002fec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FEC 22308 bytes
SHA-256: 3fb26d67db7f8a31548b5ce61b7496f8ae155f5df09d3e4c0a8026649f949dff
font_01_sfnt_off00006166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6166 18176 bytes
SHA-256: 3801bf7a1deb8554b037031e06bdefc56ff30112f6b39d510dbb5cf942fa8267

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