PDF malware analysis — malicious · 6116bf20a6920145

MALICIOUS

PDF

66.9 KB Created: 2020-12-18 03:37:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: b222fd8bf6f8639ecc3902f82bfaa01f SHA-1: 5396a8693d3b34feafd3b9bd529a1d1f053f3913 SHA-256: 6116bf20a69201454fde4e8adf7bc4eb5cb03c2f1d44493ac2012f2354c2f365

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs are common in phishing lures.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://traffnew.ru/aws?utm_term=2.+3+reflexive+verbs+worksheet+answers PDF link annotation
- https://suganolorifumu.weebly.com/uploads/1/3/0/8/130814011/2aa778649b8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366028/normal_5f872325386ec.pdfIn PDF document text
- https://zuwukozoxuwiged.weebly.com/uploads/1/3/4/7/134713444/juperokuwob.pdfIn PDF document text
- https://joxuripuziw.weebly.com/uploads/1/3/4/2/134266010/afe45ab08d355d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501374/normal_5fc54f3813278.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381539/normal_5f8e6a3b46b03.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4478133/normal_5fcd527e93719.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/fapaga/nibuvamarebifunava.pdfIn PDF document text
- https://s3.amazonaws.com/teximikamukubo/igp_manager_advanced_guide.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc144361c8c7413143450ce/t/5fcc28df3ff1011540e1bef4/1607215332488/prison_architect_escape_plans_wiki.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_off0000c4b9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC4B9	5512 bytes
SHA-256: `1df8fb9b60001c2234f1f435f16250f27d16f2b7fea6b4d91af1e15c4c74d619`
`font_01_sfnt_off0000d793.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD793	12204 bytes
SHA-256: `b7b30c5b5178cca7a30e70bed2c263ec442d16b24d3c642840b140a1872a8650`

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