PDF malware analysis — malicious · b34ff6bf90407b6a

MALICIOUS

PDF

67.4 KB Created: 2021-04-13 16:07:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: 2e9b2d6ae1bacddf4127567e5749176b SHA-1: 7a3558bce043e18b4c2fd8f65747d27a2d47614d SHA-256: b34ff6bf90407b6ab7b4830a3db524ced0dbe23a45239af96e31c8455baf34b4

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 presented as a lure related to 'IBM Maximo Asset Management'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect the user to a malicious site.

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://www.jwico.com/sites/default/files/webform/monufugabezexi.pdf In PDF document text
- https://www.dgs-interparts.be/sites/default/files/36138637258.pdfIn PDF document text
- https://www.dgs-interparts.be/sites/default/files/viwiredozilopuvotudulufez.pdfIn PDF document text
- https://www.natsihwa.org.au/sites/default/files/webform/17947704001.pdfIn PDF document text
- https://www.pharoxglobal.com/sites/default/files/webform/garuwofewitenobakufenewi.pdfIn PDF document text
- https://www.natsihwa.org.au/sites/default/files/webform/72917344941.pdfIn PDF document text
- https://web.liderpapel.com/sites/default/files/webform/wavunivuzabanovomid.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=ibm+maximo+asset+management+pdfPDF link annotation
- https://lib.asu.edu/system/files/webform/liwubuwivak.pdfIn PDF document text
- https://lib.asu.edu/system/files/webform/bejugejotofetuxiw.pdfIn PDF document text
- https://lib.asu.edu/system/files/webform/61431168480.pdfIn PDF document text
- https://lib.asu.edu/system/files/webform/delibenapu.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_off0000cb3b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB3B	5376 bytes
SHA-256: `fe42f01e6997ecfb7ccedfebe93308ff407c713aedffb48a8efe2488b5c15afe`
`font_01_sfnt_off0000dd7a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD7A	10500 bytes
SHA-256: `8084a710cbbdfadb8f527d748178e16c5b81232bb63f40b17b6234bbd7192fd4`

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