Malicious PDF — malware analysis report

Static analysis result for SHA-256 67a615862d403c6f…

MALICIOUS

PDF

47.6 KB Created: 2021-06-04 03:07:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: a6bd6c408d66be04370c62d8fa33897f SHA-1: d06a3262e0e4dd1f6f4231893ae328630bcf8af8 SHA-256: 67a615862d403c6f6e0e4fc8740d22307f13f132bd9cbfe749872229826e8d1c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.online/app/431946152/get-robux-today-game-hack PDF link annotation
    • http://perpustakaan.pa-dompu.go.id/repository/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/earn-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/wurst-115-2_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id//repository/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-dompu.go.id/repository/free-spins-in-coin-master-2021_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.

FilenameKindSourceSize
stream_004_off00004f21.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F21 26352 bytes
SHA-256: efabf13e6c5b8de4edfa9ef0dab7e46f626cddc1b5cc6bbc051b7dfd95727d8f
font_01_sfnt_off000089e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E3 3464 bytes
SHA-256: 06a95d8e12c007ec9fac890fbf8fdebc343192aa746b99eca43ce0db2b68aa00
font_02_sfnt_off0000961b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x961B 18536 bytes
SHA-256: 52f9c859b3f332441204d5c114ca3069b0f0b255dc0376a71d348f06f556bd46

Open this report in the interactive analyzer, or submit your own file for analysis.