PDF malware analysis — malicious · d4f7aa15bdece912

MALICIOUS

PDF

76.2 KB Created: 2021-03-29 22:25:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 545985c1faba169905724dc4ce884015 SHA-1: c8ecb50a38238ba1ee8a4e1b1a4fcf9d8e44b89b SHA-256: d4f7aa15bdece912163750583c8be2e212a5c18bdc55d00074a9009e440f489d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, suggests a lure related to 'Pork rub for pulled pork', likely intended to trick users into visiting the malicious URL for phishing or scam purposes.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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 https://maypoin.ru/wix?keyword=pork+rub+for+pulled+pork
- https://cdn.sqhk.co/juvebuzizej/jgOifcQ/sudoku_6x6_medium_printable.pdf
- https://cdn-cms.f-static.net/uploads/4453743/normal_6028e1e59dbb0.pdf
- https://cdn.sqhk.co/fusajovogi/jexiajI/political_lobbying_definition_economics.pdf
- http://jemaxawiju.22web.org/kapurakakuvamos.pdf
- https://cdn-cms.f-static.net/uploads/4450628/normal_601295b75129e.pdf
- https://cdn.sqhk.co/fefoseto/joXMjgu/jepubumisikimitikesam.pdf
- https://cdn-cms.f-static.net/uploads/4416656/normal_6018ae637b716.pdf
- https://cdn-cms.f-static.net/uploads/4476767/normal_603e6e854de1e.pdf
- https://cdn-cms.f-static.net/uploads/4447086/normal_602dab306578b.pdf
- https://cdn-cms.f-static.net/uploads/4482880/normal_6022652660a11.pdf
- https://static.s123-cdn-static.com/uploads/4384650/normal_5fe39ec98fe9b.pdf
- https://cdn.sqhk.co/gusisitixinu/vibDha7/striker_soccer_brazil_download.pdf
- https://cdn-cms.f-static.net/uploads/4497658/normal_604a18546d656.pdf
- https://cdn-cms.f-static.net/uploads/4417313/normal_602586b2400bb.pdf
- https://cdn-cms.f-static.net/uploads/4476954/normal_605fd60610222.pdf
- https://static.s123-cdn-static.com/uploads/4369648/normal_5fcdfb42f25cc.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://xigoraviwa.epizy.com/bussid_kerala_oneness.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ee95.bin` `ed4bde9127e04fa65de73f4343cc67e4a4d8349e38d1004d1aaafe7746e4b69f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE95	4852 bytes
`font_01_sfnt_off0000ff26.bin` `d943eadefc1d956197e5eade86af1d4f8518cfb0734c3c7eb9b4aee16f4e262c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFF26	10716 bytes

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