PDF malware analysis — malicious · 472a3cd6edfc8f88

MALICIOUS

PDF

74.1 KB Created: 2021-02-18 20:48:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: bea5ce917dba2be9e0db741a25e431eb SHA-1: 47627cb2bcb3620b1157fe8b73e585d1cf683d93 SHA-256: 472a3cd6edfc8f8802849e77eb79384f99711c99b45f020e6556f48558c28f31

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious URL, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to reference a product review, suggesting a lure to entice users to click the malicious link.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/strik?utm_term=nike+air+force+1+shadow+white+review PDF link annotation
- http://nuverlites.online/free_letterhead_templates_printable8fr02.pdfIn PDF document text
- http://bibiladiwoz.22web.org/android_developer_jobs_in_mnc_mumbai.pdfIn PDF document text
- http://reduslimitalia-official.website/39465502380zyevt.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/rilexazejuzovep/85207854246.pdfIn PDF document text
- https://s3.amazonaws.com/sejakopa/dell_latitude_7480_docking_station_manual.pdfIn PDF document text
- https://s3.amazonaws.com/sitok/lerase.pdfIn PDF document text
- https://s3.amazonaws.com/kuxuxemu/class_template_in_c_examples.pdfIn PDF document text
- https://s3.amazonaws.com/gapuruxumeg/ayyappa_songs_malayalam_audio.pdfIn PDF document text
- https://s3.amazonaws.com/zisulamisozoto/zajopejumuzemivutawij.pdfIn PDF document text
- https://s3.amazonaws.com/lawakux/12408195476.pdfIn PDF document text
- https://s3.amazonaws.com/sabegokek/emirates_cabin_crew_uniform_watch.pdfIn PDF document text
- https://s3.amazonaws.com/likerajatob/whirlpool_microwave_manual_wmh31017fs-_0.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_off0000e50d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE50D	5312 bytes
SHA-256: `7d4df6609f663fc1c8eb490ed3df7cb6b51abe1a8f853fcd9b948b24c8fbbe83`
`font_01_sfnt_off0000f741.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF741	10832 bytes
SHA-256: `43037a9b70ee2a999d147f8bc62c407f7ed4a8c9e9235be877135fdab46cb932`

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