PDF malware analysis — malicious · 5e4374b7601fbb80

MALICIOUS

PDF

71.0 KB Created: 2020-12-25 19:02:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 0a53d1c31450cad0ac465d17d7277952 SHA-1: 72036af50e60ed22c0ec0e0403fbcea000ff4387 SHA-256: 5e4374b7601fbb805828c1f35998c1ad2ea1771e254adbdcae21064333ce0190

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to motorcycle sales.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://trafficel.ru/strik?utm_term=motorcycle+race+bikes+for+sale+uk PDF link annotation
- https://cdn-cms.f-static.net/uploads/4369187/normal_5f887e339c1be.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4499958/normal_5fc9d07525022.pdfIn PDF document text
- https://cdn.sqhk.co/vurelakixu/ifljaDg/nifomu.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366367/normal_5fc63d1e3614b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4423154/normal_5fac551b3ec89.pdfIn PDF document text
- https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/roreza_nugaxusul_zuwerafegebosej_zuzas.pdfIn PDF document text
- https://bexizesuxeneze.weebly.com/uploads/1/3/4/6/134634073/dcc108872.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456712/normal_5fdbe2d4ca06a.pdfIn PDF document text
- https://cdn.sqhk.co/ratijojitud/geig4ia/plants_vs_zombies_garden_warfare_2_ps4_offline.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/luramamelolem/xaxige.pdfIn PDF document text
- https://s3.amazonaws.com/dukexajuj/63129049220.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d984.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD984	5184 bytes
SHA-256: `c2c08608c8facf9fcce5d1c7836142aa975f58dd6ae61db141601ab037886e21`
`font_01_sfnt_off0000eb52.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB52	10648 bytes
SHA-256: `6929da1f6072bb18413d0e5201e077c111ec98cc69bf8168a1cec13859db530b`

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