PDF malware analysis — malicious · 1f51e9489345d46d

MALICIOUS

PDF

72.7 KB Created: 2021-01-04 08:46:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01

MD5: c7e3685f9a0e2b629d01869bae3c34b3 SHA-1: 50ca2a4256510068502a81c360ad7c31cc89c798 SHA-256: 1f51e9489345d46d3730725df0df420adae7fd8626a08810c836a5ac045c701b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://trafffe.ru/123?utm_term=formato+de+recibo+de+luz+en+excel+2020 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4407998/normal_5fbd8bcea6936.pdfIn PDF document text
- https://cdn.sqhk.co/damukowabij/XDhb2hj/scor_pal_double_sided_tape.pdfIn PDF document text
- https://cdn.sqhk.co/sagitusat/zuOjbhi/fix_it_to_break_it_lyrics_deutsch.pdfIn PDF document text
- https://cdn.sqhk.co/lidupusumoj/hbjiCii/land_sea_air_travel_metro_manila.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4527108/normal_5ff2915c16e2c.pdfIn PDF document text
- https://turamuko.weebly.com/uploads/1/3/4/4/134458704/9286271.pdfIn PDF document text
- https://rewazuxaroro.weebly.com/uploads/1/3/4/3/134341361/tevalofute.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4483082/normal_5fde5544d93fa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/b3de3d40-58b6-40ac-a126-b31523757be8/benhart_of_jugo_summons.pdfIn PDF document text
- https://s3.amazonaws.com/safago/22947981555.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d298.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD298	5392 bytes
SHA-256: `a34d65c8c89ac01689ed87852af7701759e3b26c11be391fa61af4426ba41682`
`font_01_sfnt_off0000e4d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE4D7	2092 bytes
SHA-256: `78e94e2e47178245ca437e301e19f50dc99845ecc02da2ba30fe2b1e34051cc2`
`font_02_sfnt_off0000ee7c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE7C	11552 bytes
SHA-256: `e1b520377ef8e6eabdea7ce5295f6757f44614d922cdeb4405c9d0178d74a392`

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