Malicious PDF — malware analysis report

Static analysis result for SHA-256 101038c11a62a147…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 13:14:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c6b51af6bc3af94571b893ba5f1ff23b SHA-1: e4360f70c6ab74c14610b5356597d4ffb38f266a SHA-256: 101038c11a62a147d03b9afa9654de2ab54f6589f8aa47c9d8a2ee60d5dd7e41
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically advertising free game hacks and generators for popular games like Roblox and Coin Master. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lure users to malicious websites. The presence of embedded URLs and the nature of the lures indicate a likely attempt to deliver a second-stage payload or lead users to credential harvesting pages.

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/roblox-free-skin-hack-game-hack In PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-hack-copy-and-paste_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-online-hack-generator_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/que-hacer-cuando-te-hackean-roblox_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-fly-hacks-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-rust-free_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-hack-for-rocitizens_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/games-that-gives-free-robux-2021-july_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-iteams-in-roblox-using-to_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-roblox-party-invitations_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-no-surverys_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-do-you-get-free-vip-on-roblox_GM431946152.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_off00002f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2F 22880 bytes
SHA-256: 39fe566ed531ce0e2328f5da5f81f5d49f655123f9794856ad3737e7929e6523
font_01_sfnt_off000062bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BD 18940 bytes
SHA-256: 5eb055bdb1d121fd091c2d4157b121bac2f77aca2e4868b583b08e4790456247

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