PDF malware analysis — malicious · 32f60f3d9ae156fe

MALICIOUS

PDF

78.5 KB Created: 2021-03-03 20:41:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03

MD5: 0c9940e378177e86a0894c6cb25c8d67 SHA-1: b0079e456c211612d961a9b5319f662fe8647afa SHA-256: 32f60f3d9ae156fed9c2c656440dde504dc4622f6987951bda9b88bed294eec3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect to a phishing site. The document body, though heavily obfuscated, suggests a lure related to "ccna security pretest exam answers" to entice users to click 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://midufefew.ru/strik?utm_term=ccna+security+pretest+exam+answers PDF link annotation
- https://cdn.sqhk.co/pikevasoze/geuxl6C/tuwavezumefaziwuwamewejad.pdfIn PDF document text
- https://cdn.sqhk.co/desogepupema/Rvcjegp/kidisopoz.pdfIn PDF document text
- http://ca-management.website/jixubobajbivk.pdfIn PDF document text
- https://cdn.sqhk.co/zimidenex/nFifANU/srs_airbag_service_urgent_volvo_s80.pdfIn PDF document text
- http://eroganoficial.site/android_x86_dual_boot_windows_10w0zvj.pdfIn PDF document text
- https://cdn.sqhk.co/dusawugivepo/ieE8JiR/57754279422.pdfIn PDF document text
- http://vbruti.site/tajoxutiwuneladufazutarqnl.pdfIn PDF document text
- https://cdn.sqhk.co/gusejemife/aM1Lmjg/sujasoxekutenosevus.pdfIn PDF document text
- http://amorexpo.com/65221777795afvnn.pdfIn PDF document text
- https://cdn.sqhk.co/jutusaxibu/fFjgfhf/75043007791.pdfIn PDF document text
- http://ecoservice-vlad.ru/70407625751xvx5q.pdfIn PDF document text
- https://cdn.sqhk.co/lanumakefu/HjfgdUK/75707825751.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/luxelula/vb._net_2010_full_version.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_off0000f76a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF76A	5216 bytes
SHA-256: `4db37c0af481d1b388414c0cd393f647b5b4ded28ee144dcd4c95e5a6a683c9f`
`font_01_sfnt_off0001092c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1092C	10472 bytes
SHA-256: `f541469052c49e31c60b12f256bc678c8bfeb9058e5abb3bfee1ce9ab8db0173`

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