Malicious PDF — malware analysis report

Static analysis result for SHA-256 6880372e9da061f9…

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 19:08:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ac7bc38353dec016eb7b89988c36f374 SHA-1: 6a0700ece62b7851cb7ddf6a640f034c10aeae12 SHA-256: 6880372e9da061f9a98af05397ff5f66c485e5027ac2fe04d5a936edbc942089
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector, masquerading as a "free generator / game hack". The document body and extracted URLs strongly suggest a lure for users seeking in-game currency or cheats, which is a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and malicious links indicate an attempt to redirect users to potentially harmful websites, likely for further exploitation or malware delivery.

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/robux-hack-v1-0-game-hack In PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/hack-de-robux-real_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/dungeon-quest-roblox-hack-infinity-ability_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-coin-master-hack_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_off00002f8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8C 22504 bytes
SHA-256: a62f7c3ba630c6bec4ca1bef6689ae42e8cf76d28a4904d0a25d781579a4ce18
font_01_sfnt_off000061c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C2 19132 bytes
SHA-256: 4c9faf99392185bdfa8609035c3546da95fe12640dd791e14ef1e6107d9e842b

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