PDF malware analysis — malicious · d4f3704ce19f7d8a

MALICIOUS

PDF

73.3 KB Created: 2021-03-01 21:49:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 92ec30539017a144479994fe6b0d16d8 SHA-1: d2b2c8a25b555c5af93f02af7175e7264b7333e9 SHA-256: d4f3704ce19f7d8abd20d70e65f154302811147251120665b2dadfa9a6b419d9

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to contain keywords related to hardware, suggesting a lure to trick users into clicking the malicious link.

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://ponafet.ru/123?utm_term=dell+xps+8300+network+adapter+missing
- https://cdn.sqhk.co/baxafapunubi/ibogghc/mabutugozim.pdf
- https://static.s123-cdn-static.com/uploads/4409123/normal_5ff6613fb1331.pdf
- https://cdn.sqhk.co/fadejiweruw/higf19c/how_long_is_my_t_mobile_pin_number.pdf
- https://cdn.sqhk.co/rafumufo/jpifgdM/united_methodist_shona_hymn_book.pdf
- https://static.s123-cdn-static.com/uploads/4378856/normal_5fcc59c65c1c6.pdf
- https://cdn.sqhk.co/rifelefiw/ijh2C01/senujekewegutudi.pdf
- https://cdn.sqhk.co/gupikekarobo/IZjblgf/stx_usa_field_hockey_apparel.pdf
- https://cdn.sqhk.co/jabisopomuxo/aVJhbGi/beragavowamumelo.pdf
- https://static.s123-cdn-static.com/uploads/4411501/normal_5fccc49215162.pdf
- https://static.s123-cdn-static.com/uploads/4467278/normal_5ffa7347116fe.pdf
- https://static.s123-cdn-static.com/uploads/4416923/normal_5feb273f8916a.pdf
- https://cdn-cms.f-static.net/uploads/4391623/normal_600f154a9379d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/bisiku/waxuwopepumililiwalazenok.pdf
- https://s3.amazonaws.com/banula/free_child_adirondack_chair_plans.pdf
- https://s3.amazonaws.com/takateg/excel_vba_copy_cells_with_formatting.pdf
- https://s3.amazonaws.com/zatazewoz/barcode_font_for_word_2013.pdf
- http://fowimifefezujo.myartsonline.com/jack_reacher_2016_download.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_off0000de0f.bin` `5f74d3579c01af6023e83ba315779b75a6b93476bd3672460cbeeb0e79e52e47`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDE0F	6004 bytes
`font_01_sfnt_off0000f282.bin` `ffefae8d58e729f1bf7d20dddebfe3ad9436586b2979a2ad10d89d5b8ccc5f83`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF282	11072 bytes

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