Malicious PDF — malware analysis report

Static analysis result for SHA-256 da74d63372963978…

MALICIOUS

PDF

48.4 KB Created: 2021-06-02 21:53:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 98cb02f5272fbb2efca0f519067befdd SHA-1: df79c5d9ae605f1e3de3b4f6ff9ea47dfb026ab8 SHA-256: da74d633729639784d50753bbb7349cd33093157eee7dd63435c9bfb40b558a1
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a call-to-action phrase, strongly suggesting a phishing or social engineering attack. The ML classifier also flagged this PDF as malicious with high confidence. The document's content and URLs point towards a lure for downloading game cheats or hacks, which is a common pretext for distributing malware. No scripts were extracted, but the presence of external URLs indicates a potential download or redirection to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • 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.xyz/app/431946152/best-free-injector-roblox-game-hack PDF link annotation
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/roblox-a_GM431946152.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/ispoofer-pokemon-go-free-key_GM1094591345.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/roblox-font-free_GM431946152.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/level-coin_GM406889139.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/coin-master-link_GM406889139.pdfIn PDF document text
    • http://xn--apartementos-smfora-cala-ratjada-4vc.de/images/minecraft-pc-free_GM479516143.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_off000053fd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53FD 26180 bytes
SHA-256: b5f0d82215e7f2e2b392e794fd83b24b6bd7b8fe5a782fef85133d9805eee158
font_01_sfnt_off00009024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9024 3016 bytes
SHA-256: 4c3e2db5174821787a4569c9da4979555510caebd15fb9cea35573c139e242bd
font_02_sfnt_off00009a87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A87 18240 bytes
SHA-256: c50993464fb6259ae25e468f1c5baa2ef9fcbf92fd3637996b5c3b50b06a1c79

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