PDF malware analysis — malicious · d289048b0e990f38

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 04:56:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 5adb46093b2c2961f2f5f7186b7444bd SHA-1: f3553f1980c109baca13cd0182d4f4c8246b267b SHA-256: d289048b0e990f3885277ecba430d3f3d007bc40dc66f2329b6c62e7b0bb9d27

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded URLs and a document body that promotes a 'free Robux' scam, a common lure for malicious downloads. The presence of a clickable URI pointing to a raw IP address and the ML classifier's high confidence score further indicate malicious intent. The document likely serves as a lure to direct users to download a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL

PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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.tw/app/431946152/free-robux-com-game-hack
- http://202.56.165.220/digilab/repository/how-to-get-free-robux-easy-no-download_GM431946152.pdf
- http://202.56.165.220/digilab/repository/free-robux-hack_GM431946152.pdf
- http://202.56.165.220/digilab/repository/roblox-synapse-hack_GM431946152.pdf
- http://202.56.165.220/digilab/repository/free-robux-generator-straight-robux-no-human-verification_GM431946152.pdf
- http://202.56.165.220/digilab/repository/coin-master-gold-cards-free_GM406889139.pdf
- http://202.56.165.220/digilab/repository/free-robux-today-2021_GM431946152.pdf
- http://202.56.165.220/digilab/repository/free-robux-without-buying-apps_GM431946152.pdf
- http://202.56.165.220/digilab/repository/roblox-free-level-7_GM431946152.pdf
- http://202.56.165.220/digilab/repository/get-free-robux_GM431946152.pdf
- http://202.56.165.220/digilab/repository/free-robux-nos-urvey_GM431946152.pdf
- http://202.56.165.220/digilab/repository/roblox-city-simulator-free_GM431946152.pdf
- http://202.56.165.220/digilab/repository/2021-fe-hacks-roblox_GM431946152.pdf
- http://202.56.165.220/digilab/repository/clothing-groups-for-free-roblox_GM431946152.pdf
- http://202.56.165.220/digilab/repository/roblox-download-free-android_GM431946152.pdf
- http://202.56.165.220/digilab/repository/robux-generator-no-survey_GM431946152.pdf
- http://202.56.165.220/digilab/repository/download-game-roblox-hack_GM431946152.pdf
- http://202.56.165.220/digilab/repository/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdf
- http://202.56.165.220/digilab/repository/coin-master-hack-download-apk_GM406889139.pdf
- http://202.56.165.220/digilab/repository/free-daily-spins-coin-master-2021_GM406889139.pdf
- http://202.56.165.220/digilab/repository/robux-free-online_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002fe2.bin` `487f50eb180ed67ae617e7ad71210445931b7dbf4b45f0a496712d06004d0b5b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FE2	21516 bytes
`font_01_sfnt_off00005f39.bin` `20782bd0acfe52469dc9f14a315b4aee1c9563688044d1d6d3a516ef71528a8c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F39	18976 bytes

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