Malicious PDF — malware analysis report

Static analysis result for SHA-256 02acc366827a049a…

MALICIOUS

PDF

34.6 KB Created: 2021-06-23 00:59:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d986ba47893962e57c5731ff2e3d3ae6 SHA-1: c939f5e75eaebfcc3298f476b7144cc7fd938587 SHA-256: 02acc366827a049a6edf4b1777437cdd74f7633388be016f9446f261befab6ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a 'free generator / game hack' which redirects to a known malicious infrastructure. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into downloading potentially malicious files. No scripts were extracted, but the presence of malicious redirectors and the nature of the lure indicate a high likelihood of 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/406889139/coin-master-hack-apk-iphone-game-hack In PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/mcpe-client_GM479516143.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/get-me-robux_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/blox-fun-info_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/pokemon-go-free-zone_GM1094591345.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-hack-quora_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/robux-hack-2021_GM431946152.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
stream_002_off00003015.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3015 23128 bytes
SHA-256: ce515a7e3ac152287b35d70e7f3e6bf0dfebf5d869e2cda4930e184a2b2b9200
font_01_sfnt_off0000643a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643A 18344 bytes
SHA-256: 48c41a6d06caede2bfe7c3afa9e405a795656508ab3dfdd406afe33248ac35d9

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