PDF malware analysis — malicious · d9e57ddad1cc5c21

MALICIOUS

PDF

77.1 KB Created: 2021-02-20 11:58:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5c039fdb042c8283790673cfd67d6a9b SHA-1: 2b2b9c04d8ba4009024f6910afc0f8e3704c9a9e SHA-256: d9e57ddad1cc5c212085d2f5903366cf1ad9d09e59afc4484319370f063d5c43

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains embedded URLs, one of which is identified as a potential phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the PDF structure suggest an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=mta+server+study+guide
- http://fumegowo.iblogger.org/rudojufala.pdf
- https://static.s123-cdn-static.com/uploads/4378175/normal_5ff2d6547dd8c.pdf
- https://cdn-cms.f-static.net/uploads/4453563/normal_601f9cdc06e98.pdf
- https://cdn-cms.f-static.net/uploads/4495271/normal_601b560602a90.pdf
- https://cdn.sqhk.co/pavujakorige/jaCiidR/rush_rally_3_apk_iphone.pdf
- https://cdn-cms.f-static.net/uploads/4374983/normal_5fd89781d3627.pdf
- http://jotepuxigavof.iblogger.org/collision_theory_worksheet_key.pdf
- https://cdn.sqhk.co/soxuvezosapa/hLBLhgO/-_34.pdf
- https://cdn-cms.f-static.net/uploads/4420599/normal_600af43ce877e.pdf
- https://cdn-cms.f-static.net/uploads/4454304/normal_6023b88f30aea.pdf
- https://cdn-cms.f-static.net/uploads/4453914/normal_60297b3ac0e67.pdf
- https://static.s123-cdn-static.com/uploads/4425926/normal_5fc7a89b84fec.pdf
- https://cdn-cms.f-static.net/uploads/4482424/normal_6013ca198bc25.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/bupaxomu/45132389058.pdf
- http://dinetekip.epizy.com/how_to_use_the_garmin_vivofit_4.pdf
- https://s3.amazonaws.com/voropa/32695426398.pdf
- http://kepirodineloga.epizy.com/envisioning_information_ebook.pdf
- http://pevurevakube.rf.gd/87561835820.pdf
- https://s3.amazonaws.com/kovezodepugov/java_32_bit_windows_7_free.pdf
- http://tuganireriwem.rf.gd/acr_gout_guideline_2017.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_off0000f003.bin` `9f16430a33c3141724349b3a4b8f1b5194c66d2e44338ce051426db45ea7b1f8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF003	5128 bytes
`font_01_sfnt_off0001019c.bin` `48e02adc739183da96cb9caf3b82a95ca4927f46bdbdf6e1974731a34d6f851b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1019C	11412 bytes

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