PDF malware analysis — malicious · 2ef9ab1a725ecc5e

MALICIOUS

PDF

39.8 KB Created: 2020-11-04 10:24:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: 003ae6b55c55b6f51801bd37006791cf SHA-1: 39b72a854b93af79965843028c7a63fa326abceb SHA-256: 2ef9ab1a725ecc5e8cde5191eeacf2b2eb1f32be5dc76ff564b409caff6cca6e

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs and the document body text, which includes a URL, suggest a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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://cctraff.ru/aws?keyword=english+to+farsi+dictionary+free In PDF document text
- https://cdn-cms.f-static.net/uploads/4367289/normal_5f9a8a80bf2c7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370052/normal_5f98391f032ec.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387419/normal_5f94766b036e0.pdfIn PDF document text
- https://liletizotefos.weebly.com/uploads/1/3/4/2/134234842/9692704.pdfIn PDF document text
- https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/tulilikivixixu.pdfIn PDF document text
- https://gizojobov.weebly.com/uploads/1/3/4/4/134436228/1618954f.pdfIn PDF document text
- https://botomaluxezevip.weebly.com/uploads/1/3/4/3/134340767/wuraxujojeb_xesenux_vuwuberawiv_ligijekagimone.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4457014/normal_5fa2189d1f636.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/bokofapig/40963843303.pdfIn PDF document text
- https://s3.amazonaws.com/fedufiporara/ring_of_continuation_pfsrd.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/23d44c9f-c930-4fb7-bda5-9ee728499466/aveeno_cc_cream_fair_to_light_review.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_off00005e1a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E1A	5344 bytes
SHA-256: `893b6509f507bbbcb091a8f083cb2cfe860c4fed0456689e43a24bf28e42e9bf`
`font_01_sfnt_off0000704f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x704F	10072 bytes
SHA-256: `682911d2ea03ed1aa7aa95773a6f4ed697566f567270733d2dfc158c6ae271bf`

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