Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a12304018ebe58b…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 08:26:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9776f1de85ffa005a46e932e7633390c SHA-1: dd75f908695c0254a636de02f3bad32abddfd632 SHA-256: 0a12304018ebe58b013e7585a410553712c17083a775559de36ef43412ac931f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to 'netcdn.co', which is flagged as a known malicious redirector. The document body and extracted URLs suggest a lure related to game hacks and generators, likely intended to trick users into downloading further malware or visiting malicious sites. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of malicious intent.

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/android-hacks-roblox-game-hack In PDF document text
    • http://library.imz.or.id/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/hacker-jacket-shirt-roblox-j_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-vip-server-for-roblox-labyrinth_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/00-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/pubg-uc-buy-online-pakistan_GM1330123889.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-robux-hack-no-survey-working_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/good-outfit-ideas-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/links-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-pet-snacks-coin-master_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
font_00_sfnt_off00002edc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDC 22644 bytes
SHA-256: ff1e29349d35405fc1dacd40f29b369bf24b521dbc141323f1e641c328ee72cc
font_01_sfnt_off00006189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6189 18952 bytes
SHA-256: a7b23829667d40bd5e0fc3825245753721ce9cdf147e17e45e69c9e269be61b3

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