Malicious PDF — malware analysis report

Static analysis result for SHA-256 defa30a842887977…

MALICIOUS

PDF

34.3 KB Created: 2020-04-09 05:46:08 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2a85f84bdfb395b650ce1be50485419e SHA-1: f04e41c51f29afa2a43dc6f832731b064a0e897e SHA-256: defa30a8428879775f2c9ceb5d1bd42dd6a374bcbdc8eff02b2f6331697f5043
76 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The ML classifier strongly indicated maliciousness, and the SE_ADVANCE_FEE_SCAM_LURE heuristic directly identified the document's purpose as an advance-fee fraud. The document body, though heavily obfuscated, contains references to 'Quidditch through the ages illustrated edition' and multiple URLs that appear to be part of a lure. These URLs likely lead to further stages of the attack, such as credential harvesting or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://inspechomeinspection.org/uploads/1/3/0/4/130483679/130483679.html#quidditch+through+the+ages+illustrated+edition
    • http://rootdesigns.net/uploads/1/3/0/6/130620601/4732008.pdf
    • http://1113studios.net/uploads/1/3/1/4/131438707/wizadiguzilukalij.pdf
    • http://wareshoals.org/uploads/1/3/0/6/130621502/cdfdb1e.pdf
    • http://montanalandscapingm.com/uploads/1/3/0/7/130776449/599032.pdf
    • http://oldprophetsrevivals.com/uploads/1/3/0/4/130489143/xefupimasalimerewake.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f52.bin
deb754c94057ce9615650a6b29c6fcd033f886485b2c8456b92a0716c5663ed3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F52 8200 bytes

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