PDF malware analysis — malicious · f94bf10c9939b45b

MALICIOUS

PDF

72.7 KB Created: 2021-02-13 06:39:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: e71b7378d5ddc79d131d7bde0d3c8cf9 SHA-1: 671686751c26d8c29acadb82b65a31f216e56688 SHA-256: f94bf10c9939b45b15db2bd712d9288b438f4160d3720996289ed22a98d50cca

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically 'https://jottigo.ru/wix?keyword=secondary+operations+in+manufacturing+process', suggests a phishing or redirection attempt. Although no scripts were explicitly extracted, the PDF format and embedded URLs are commonly used for delivering malicious content or redirecting users to phishing sites.

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://jottigo.ru/wix?keyword=secondary+operations+in+manufacturing+process PDF link annotation
- https://gudabujazoz.weebly.com/uploads/1/3/0/7/130739385/gedavoribokemuv_wamazula_dutovuze.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460708/normal_601fb04321ba8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376098/normal_5fd0a8334fa1e.pdfIn PDF document text
- https://tidosivapozagul.weebly.com/uploads/1/3/4/3/134390518/kejonos.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405420/normal_6022942b33caf.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/xapota/279798053.pdfIn PDF document text
- https://s3.amazonaws.com/buwosevax/hit_the_dance_floor_song_free.pdfIn PDF document text
- http://wepaxilex.epizy.com/javascript_concatenate_template_literals.pdfIn PDF document text
- https://s3.amazonaws.com/sagotomagin/zojap.pdfIn PDF document text
- https://s3.amazonaws.com/donarepemi/5455382634.pdfIn PDF document text
- https://s3.amazonaws.com/tokudapele/33540297687.pdfIn PDF document text
- http://satimizatojuge.rf.gd/25433129438.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_off0000deee.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDEEE	5648 bytes
SHA-256: `4536cabaec3d3d88ccac1b8fca768262b972ea9888697f872ecb2d57556efc35`
`font_01_sfnt_off0000f226.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF226	10568 bytes
SHA-256: `16967f37acf3ac5b136cb453d808348d3010a01009561716ac6e17b4b8ac38b7`

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