PDF malware analysis — malicious · 33e647f15a767112

MALICIOUS

PDF

48.3 KB Created: 2021-05-14 09:42:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21

MD5: f65224560d3e29a12b5754e982f786a6 SHA-1: 385326ea71dda9adac87e9fd84404aa33478d125 SHA-256: 33e647f15a76711280f5b6014de4b44b024ab5bddc88b6c35b0d83ab03a95e89

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that point to known malicious redirectors, specifically targeting users with lures related to game hacks and free currency. The document body, though partially obfuscated, contains URLs that are consistent with a social engineering attack aimed at driving traffic to potentially malicious sites. The presence of multiple redirector links and the ML classifier's high confidence score indicate a strong likelihood of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9013

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/431946152/100-robux-game-hack In PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/how-to-free-robux_GM431946152.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-free-download-pc_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/minecraft-handbook_GM479516143.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/robux-websites-that-work_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/make-robux_GM431946152.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004a60.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A60	29304 bytes
SHA-256: `13d6f5acfc9d9f782feecbd9ac7147c82b8b120700442b5ccf063c3698422657`
`font_01_sfnt_off00008db1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DB1	5696 bytes
SHA-256: `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`
`font_02_sfnt_off00009ac3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9AC3	18128 bytes
SHA-256: `fb53eb8f562c6c3a474b0aae8a68110d7a73c6f4157a43be3cf25a32a3453b93`

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