Malicious PDF — malware analysis report

Static analysis result for SHA-256 56abaa45379dc692…

MALICIOUS

PDF

32.6 KB Created: 2021-07-21 02:14:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 539e27bbb54f9ac5110be493785fe9e0 SHA-1: 564725c299d6c22d08590fc785d259056f48bdfd SHA-256: 56abaa45379dc692f6b80f5e329048f7d7b0cb11243a210d3367bef2f4a3ceb7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of free Robux and game hacks to entice users into clicking malicious links. The document contains multiple embedded URLs that redirect to known malicious infrastructure, likely serving as a gateway to further malicious content or exploits. The presence of a download button lure reinforces the deceptive nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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.tw/app/431946152/free-robux-websites-2021-game-hack In PDF document text
    • http://ristorantimaculan.it/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://ristorantimaculan.it/images/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-robux-real_GM431946152.pdfIn PDF document text
    • http://ristorantimaculan.it/images/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://ristorantimaculan.it/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://ristorantimaculan.it/images/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://ristorantimaculan.it/images/free-roblox-accounts-with-robux_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
font_00_sfnt_off0000288c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x288C 22564 bytes
SHA-256: 9b0ee6e1e6d6bcf300d7082775a49f080b5c0e9e0b50fa66dce6b449706f9bd3
font_01_sfnt_off00005afe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AFE 19024 bytes
SHA-256: b0170c17be8f23a84e249e366aa9381b6dc80aa71edc0927f4b0be829214c04c

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