Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a2aed2ea13d3ae5…

MALICIOUS

PDF

45.0 KB Created: 2021-06-13 21:51:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 908647d1d758b4691b78e5c1e8311af1 SHA-1: 901db032363904a628fa5f48ee470faeb05d6f93 SHA-256: 1a2aed2ea13d3ae526466bfd646d65fae915af9228e6ef1194742ee7a3ddf329
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 0.9980

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 http://netcdn.co/app/431946152/roblox-dinosaur-simulator-free-game-hack PDF link annotation
    • http://msfs-eastafrica.com/images/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/free-dominus-roblox-2021_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/jump-higher-hack-roblox_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/free-guest-roblox_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/roblox-free-version_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/roblox-free-robux-bot_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/robux-apk_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/free-robux-youtube-2021_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/roblox-hack-with-winrar_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/roblox-gift-cards-for-free-online_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/free-robux-xbox_GM431946152.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/free-spins-in-coin-master-2021_GM406889139.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.

FilenameKindSourceSize
stream_003_off000049f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49F8 28976 bytes
SHA-256: 5975cca3d3f0c6e8b5be1dce0492a93a23c59647a11a4aa1a4e2c1b43c32d31a
font_01_sfnt_off00008b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B9C 18968 bytes
SHA-256: 9a6e833c9173811f944ca54e9d412e768e0be0c234aaa26e8bbd6c38d4459e81

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