Malicious PDF — malware analysis report

Static analysis result for SHA-256 708662e921fa6949…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 22:03:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: df7e360290cafe11b10767a81b89dce9 SHA-1: 1019997606d82a028bd4b249c0c5e08a384605a1 SHA-256: 708662e921fa6949eb22c79765f6e1dec2a7d9ed3f97d8a5c8bdc3c2f197310c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that redirect to known malicious infrastructure, specifically advertising 'free generators' or 'game hacks' for popular games. The document body and embedded URLs suggest a lure for users seeking in-game advantages, which is a common tactic for phishing or malware distribution. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a high likelihood of a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/free-clothing-on-roblox-game-hack In PDF document text
    • https://www.belgium-archery.be/images/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/block-best-robux_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-executor-free_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coinmaster_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/robux-robux_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-download-minecraft-for-free-on-windows_GM479516143.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_off00004935.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4935 25356 bytes
SHA-256: 0620012366c6544fac4b1bd51dc78aff952093b8ca6e3bbdca89cb3352dd5003
font_01_sfnt_off0000840b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x840B 18624 bytes
SHA-256: c8648e0e7fa589189c517af6ddfacdde337cbe9d54a122799786c2e236ce5a9b

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