Malicious PDF — malware analysis report

Static analysis result for SHA-256 04832b2360cd60c4…

MALICIOUS

PDF

42.8 KB Created: 2021-06-03 12:27:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2813d53d8b06557a69bcbe226bc288c5 SHA-1: de6f7b9b12ea05839b62527dcfa18f5ce178cb98 SHA-256: 04832b2360cd60c4ea6d9d42f669a508a84ad35e76747f35a1a0897b221116e6
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a "PDF_SEO_LINK_FARM" heuristic, suggesting an attempt to manipulate search engine results or direct users to malicious content. The presence of a "download" call-to-action further supports a lure-based attack. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate a likely intent to redirect users to external sites for downloading potentially unwanted or malicious applications, such as game hacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 4

  • 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.
  • 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.online/app/406889139/coin-master-hack-download-ios-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/pokemon-go-free-remote-raid-pass_GM1094591345.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-hacks-for-android_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-spin-link-today-16-11-2021_GM406889139.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_004_off00004b3b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B3B 25276 bytes
SHA-256: c0b6ab648a472450d0e728c9d2a66a1ee6a99b11c1eda2b3d14bb7cbd8b00a6f
font_01_sfnt_off00008490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8490 18296 bytes
SHA-256: eb74dfbf061b28f56530c4f3611099698c9338eeb1cc06642e5044c6dd5fa24e

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