PDF malware analysis — malicious · b2136fd178d94003

MALICIOUS

PDF

44.2 KB Created: 2021-05-13 17:44:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: abd6531ea887b5f9e7a8f6a5fff46df7 SHA-1: e4dabaa779e7725408a126df31d6b68acb36f827 SHA-256: b2136fd178d940038f0adbb34e0c3e58b53fb2cd265ed057d67b6bcb9f0939f4

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The document contains multiple URLs that promise free in-game currency, a common lure for phishing and malware distribution. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading further payloads. The document body, though partially corrupted, contains references to these lures and embedded URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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/how-to-get-free-robux-easy-on-phone-game-hack
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-free-spins-no-survey_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-free-spins-link-facebook_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/spin-hack-for-coin-master_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-mod-apk-free-download-for-android_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/robuxlove-net-free-robux_GM431946152.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-hacker-club_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/free-roblox-accounts-dantdm_GM431946152.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/free-roblox-gift-card-codes_GM431946152.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/robux-generator-no-verification-needed_GM431946152.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/free-robux-hack-generator_GM431946152.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/how-do-you-get-free-robux-2021_GM431946152.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-official-page_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-free-coins-facebook_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/lazyblocks-com-free-robux_GM431946152.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-daily-free-spins-today_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-hack-tool-download_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-daily-rewards-link_GM406889139.pdf
- https://elearning.mtsn1wonosobo.my.id/__statics/gudangsoal/files/coin-master-32-hack-apk-download_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004d8e.bin` `d8edb4b85bdf415d68ea8488096a85353eec6ad1438f038d3d529cd811abf4fe`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D8E	25644 bytes
`font_01_sfnt_off0000888a.bin` `e6e3347b6ae704c87521381cf50d1046861d1e5efe3155f159bfcc6a29e599dd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x888A	19008 bytes

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