PDF malware analysis — malicious · 69d63c6b5e681501

MALICIOUS

PDF

35.9 KB Created: 2021-07-05 23:10:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11

MD5: b254e823c8508c3e979b7ab1b5cc80dc SHA-1: bccab5c39688777d2c79d62c76ab6bd15da90044 SHA-256: 69d63c6b5e681501309d472f9cacd9272bb5a6bc2924491795e73f4d59276b00

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file contains multiple links designed to lure users with promises of free game currency or hacks. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. The document body and embedded links strongly suggest a social engineering tactic to drive traffic 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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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-no-human-verification-and-no-survey-game-hack In PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/free-robux-claim-generators_GM431946152.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/comment-hacker-un-mot-de-passe-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/unpatched-cheat-engine-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/how-to-get-tiktok-famous-free_GM835599320.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/coin-master-code-for-free-spins_GM406889139.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/daily-coin-master-link_GM406889139.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/earn-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsnurulyaqingtlo.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.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_off0000320b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x320B	22748 bytes
SHA-256: `930db57144077153bd3d53b96157d63cfe3aa203a3e06ecc9672825b46f9429d`
`font_01_sfnt_off0000653c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x653C	19800 bytes
SHA-256: `fcd4d125090859beb8b270f882485097339e29693181c3776c14839bc9dcd643`

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