Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1af035538fcde88…

MALICIOUS

PDF

44.2 KB Created: 2021-06-04 02:50:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 788c17a0abbfc1c4ac2dfe087ca1c931 SHA-1: ef8abe6f805a506afcd6451b2438ee022056c6e4 SHA-256: b1af035538fcde88b7765e8c8cf11acdc583855c6a8a2635c25d97759152fea3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a known malicious domain, masquerading as a game hack generator. The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely leading to further malware download or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/mcpe-master-unlimited-coins-hack-apk-game-hack In PDF document text
    • http://library.patria-artha.ac.id/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/pokemon-go-free-pokeballs-2021_GM1094591345.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-points_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/hack-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-robux-1-min_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-update-2021_GM406889139.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_004_off00005140.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5140 25004 bytes
SHA-256: 8cdef24760e78a562b9d36245e6661483fff9c43d4a2faa3ea180c8ea41ab291
font_01_sfnt_off00008964.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8964 18584 bytes
SHA-256: 05a4b74ce365421ded4902af54e34ed44d4f85f1508b60b6eaffe15d5ff07d85

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