PDF malware analysis — malicious · 53ab7c9d40f1198b

MALICIOUS

PDF

33.8 KB Created: 2021-06-28 03:34:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: c2492ab5e32e932353445202fbc4a79a SHA-1: 4e840ffcf3190a5b61995eb49de12be25a15d496 SHA-256: 53ab7c9d40f1198b3625715a461f64574b051cff312af789f597f7e2875886a5

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game hacks and currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or phishing pages. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious intent to redirect users to potentially harmful sites.

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.co/app/431946152/cool-avatars-roblox-free-game-hack In PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/faztokens-hack-the-pizzaria-roleplay-remastered-roblox_GM431946152.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-roblox-game-card-get-your-code_GM431946152.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-robux-script_GM431946152.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-robux-june-2021_GM431946152.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-attack-hack-apk_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/spin-link-coin-master_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/free-spins_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/bloxrp-money-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.elearning.man2bandung.sch.id/__statics/gudangsoal/files/is-minecraft-earth-free_GM479516143.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_off00002fe5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FE5	21568 bytes
SHA-256: `18c41f4673b35f9943a97e1ec5d40d5341abda03c23bd5c3b69ccb6c863d53d1`
`font_01_sfnt_off00005f78.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F78	18868 bytes
SHA-256: `1a34a0ed19590d2a8cf19b56c09852ec0b0b6fcc6d6b83523b9507dc74105ab6`

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