Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ab3a8300926ad8e…

MALICIOUS

PDF

42.8 KB Created: 2021-05-11 05:34:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2fbf28eca070c7618e0d85b59f87017d SHA-1: 48901d633f604618ab265c0c7b6723ef44e377ac SHA-256: 5ab3a8300926ad8ec0f5b44c67e0205929e8bcdb177f80e476a9006b94a1357c
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/coin-master-hack-for-ios-game-hack PDF link annotation
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/robux-2021_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/roblox-free-skin_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.raneenmed.com/uploaded_files/userfiles/files/free-robux-no-human-verification-2021_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
stream_003_off00004b1a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B1A 25836 bytes
SHA-256: 4df5699e1a6496181fb7b7e5993790fbadf997e1d3c69afc393575f74a2e301a
font_01_sfnt_off00008665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8665 17880 bytes
SHA-256: 018df87e8b329981b4ee6e44d5bc42d6acec865ab2ec1ca80d52ebe5483b59a4

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