PDF malware analysis — malicious · b16ebd130ae97bb0

MALICIOUS

PDF

60.3 KB Created: 2020-12-15 05:05:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 7b919d88eba55069dee4c0effa2910b3 SHA-1: 2b6011bbbff3fb12d67f17e4f9ed25a45ff27931 SHA-256: b16ebd130ae97bb0fa7fcc4857ef52bd21238a5e5ee19b7e96fc11c8f3841948

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/aws?utm_term=doyles+guide+family+law+brisbane+2019'. This URL is likely used to lure victims to a phishing site or download further malicious content. The ML classifier also strongly flagged this PDF as malicious, supporting the phishing/malware distribution intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9981

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://traffmen.ru/aws?utm_term=doyles+guide+family+law+brisbane+2019 In PDF document text
- https://cdn-cms.f-static.net/uploads/4378621/normal_5fbe34776a460.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4478393/normal_5fc86d9cc3918.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475729/normal_5fc318375551b.pdfIn PDF document text
- https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/wozaj.pdfIn PDF document text
- https://jodobape.weebly.com/uploads/1/3/4/3/134317169/6878269.pdfIn PDF document text
- https://mufedagejex.weebly.com/uploads/1/3/4/7/134726032/9c521.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370530/normal_5f892dbf0d2ae.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/lorifawuvawot/hvac_system_full_form.pdfIn PDF document text
- https://s3.amazonaws.com/leguvefu/centrifugal_pump_calculation.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_off0000ae65.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAE65	6040 bytes
SHA-256: `5d21cd4519b77f821682a6a4d703355b38005b6f2a3c90a53e106295ee3eb599`
`font_01_sfnt_off0000c2fd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC2FD	9908 bytes
SHA-256: `7ce5bb76e4286275f1a280d842b561f6471a8f59f912533426994299f2f38f39`

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