PDF malware analysis — malicious · ca2699c8df1f5c45

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 21:12:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26

MD5: 5b22a156bf4693bb2378bc3c5f558c57 SHA-1: 02cb00fd26d625c3cee6cef797b1b494b113d665 SHA-256: ca2699c8df1f5c453ab25fd3b2d5e80dcbbcb8da7ffbf9cdc7b543a219cdf8ad

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The presence of a visual download button and callback lure suggests a phishing or scam attempt. While no scripts were explicitly extracted, the PDF's nature and embedded links strongly indicate it's designed to trick users into visiting malicious sites, likely to download further malware or engage in fraudulent activities.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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/406889139/coin-master-hack-spin-game-hack In PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-stuff-on-roblox-catalog_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/camping-2-hacks-roblox_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/minecraft-windows-free_GM479516143.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/roblox-hacks-safe_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-roblox-exploi_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-free-boy-hair-on-roblox_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/roblox-noclip-cheat-engine-lua_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-hack-online-android_GM406889139.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/roblox-restaurant-tycoon-hack-lua-c_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/roblox-cheat-god-mode_GM431946152.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/level-coin_GM406889139.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
- http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003295.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3295	22780 bytes
SHA-256: `2ad6505ba57ede495a0aa0b8a2186ff8ce6365565cf8b4a129e9ae7c7f8891cf`
`font_01_sfnt_off00006598.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6598	18180 bytes
SHA-256: `8089ec70024e38c963cd1b8e4fd66f251d2ac35f3e2526171ef4435f22e5a9e0`

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