Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e717516b45efa92…

MALICIOUS

PDF

40.3 KB Created: 2021-05-19 20:04:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4062c3bd322a413ed93920f1330b4533 SHA-1: acc5638f799e4a76f45f5185858e5d19b43c11bb SHA-256: 9e717516b45efa92c4bb6b9a0065a4fef55de8b90a4098ef0165f59c80a06a2b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, disguised as "game hacks" and "generators". The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting these malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or scam 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/406889139/coin-master-hack-extension-game-hack In PDF document text
    • http://brokermortgages.com/images/roblox-source_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/how-to-robux_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://brokermortgages.com/images/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://brokermortgages.com/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://brokermortgages.com/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://brokermortgages.com/images/how-to-get-free-coins-on-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
stream_003_off000045e1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45E1 24036 bytes
SHA-256: 4d0b3706c30271a7e23b8c39ae4eb51ec211e4abe53c6b3f3b432e08c37a4092
font_01_sfnt_off00007c2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C2C 17924 bytes
SHA-256: 4ec806a11ea658252867691d695683eda87cb09c7a2cbc5226fdb095b6c4840a

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