PDF malware analysis — malicious · e956b51ea0533c52

MALICIOUS

PDF

120.5 KB Created: 2022-06-30 22:47:35 Authoring application: Examples Of Airborne Diseases cuda (via FPDF 1.82) First seen: 2022-07-15

MD5: 1e79acdf0b0ec6aa06b6005a0f01ed60 SHA-1: c5079d8bb1073ab39ed5d950d236c4822f4bbb74 SHA-256: e956b51ea0533c52357a4a9cf80933a25b16fcdc4b20bece28daf5588517da67

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains multiple invisible and repeated links that direct users to external URLs, likely to download a malicious payload. The heuristic 'PDF_REPEATED_PAYLOAD_LINK_LURE' strongly indicates this malicious behavior. The embedded URLs are the primary indicators of compromise, suggesting a phishing or malware distribution campaign.

Machine Learning

Nyx PDF Classifier clean score 0.0013

Heuristics 2

Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE

PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
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://releasedvarious.site/Examples-Of-Airborne-Diseases/pdf/amandafullercreative.com
- http://releasedvarious.site/Examples-Of-Airborne-Diseases/doc/amandafullercreative.com
- https://amandafullercreative.com/wp-content/uploads/formidable/2/where-to-order-notary-stamp-online.pdf
- https://amandafullercreative.com/wp-content/uploads/formidable/2/bank-alfalah-toyota-corolla-offer.pdf
- https://amandafullercreative.com/wp-content/uploads/formidable/2/another-term-for-the-amish-pennsylvania.pdf
- https://amandafullercreative.com/wp-content/uploads/formidable/2/what-is-double-taxation-agreement.pdf
- https://amandafullercreative.com/wp-content/uploads/formidable/2/daily-mirror-letters-to-the-editor.pdf
- https://amandafullercreative.com/wp-content/uploads/formidable/2/ima-surety-denver.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_024_off0001d595.bin` `43b13684882d332187dbe2691d5e4f64c33a98e381a4dc2316374ba1b923b47c`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1D595	76950 bytes

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