PDF malware analysis — malicious · 85d29f0f2b3603d3

MALICIOUS

PDF

79.0 KB Created: 2021-03-13 21:23:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20

MD5: d1801fb0495420a9ee3d3d91ec76473d SHA-1: 579282663c77d296fec188def07eebf0dd7d8338 SHA-256: 85d29f0f2b3603d3530d3682d0fb7876965220ca1bbdceb4a7a0fcad51cfaaae

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous external URLs, many hosted on disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the document's structure point towards a phishing or scam lure, likely intended to redirect users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://pelibifir.ru/wix?keyword=tipos+de+labios+y+personalidad PDF link annotation
- https://cdn.sqhk.co/roretuduva/dhcgcl2/xizabusuvimofurigotuwu.pdfIn PDF document text
- http://teren.fun/esv_chronological_bible_reading_plantkz5u.pdfIn PDF document text
- http://www19216801.site/the_rainbow_fish_plot_summaryqp0jf.pdfIn PDF document text
- http://pevojatinolotej.22web.org/devatozoribodotidem.pdfIn PDF document text
- http://sudejiw.22web.org/fivok.pdfIn PDF document text
- http://baltika-trans.ru/when_will_princess_cruise_lines_reopenxvo6r.pdfIn PDF document text
- http://fito4ka.xyz/56050104529pk8ub.pdfIn PDF document text
- https://cdn.sqhk.co/jijipidub/ia4hfih/play_4_history.pdfIn PDF document text
- https://cdn.sqhk.co/padumaxifop/dhigeii/funny_video_face_changer_online.pdfIn PDF document text
- https://cdn.sqhk.co/libavesonon/RyDQLhj/calibre_ebook_viewer_android.pdfIn PDF document text
- http://antonio-ita.space/cathares_et_templiers0sxyz.pdfIn PDF document text
- http://limaxinsto.xyz/66481309999xvjq6.pdfIn PDF document text
- https://cdn.sqhk.co/dobexesi/chijioW/zixosoremorufagogofob.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://af1bea64-f5cd-41c2-a7c1-97f21c1aa057.filesusr.com/ugd/592671_ecfdb08f38ef418da6342ce49e6e303c.pdf?index=trueIn PDF document text
- https://26c1613e-5d28-4fa3-89cb-3d2c9ab59faf.filesusr.com/ugd/fe83c3_40ecbb46d2844b7bb361ec89e563c490.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b46e5fc4-d116-4a57-8cd9-7dd01d9bfa0a/ertugrul_ghazi_ibn_arabi_real_name.pdfIn PDF document text
- https://6b52f5a6-db44-4d3e-8337-ab33c729cb13.filesusr.com/ugd/f4de5e_e7b6cc3662234cdf8d0527867d926380.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/cf0bee18-6fee-4b3f-a6ba-38660141ebc1/29753064406.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a2045f1f-0af2-4ceb-9107-2a217ccc6611/witebuluzexarunigifelokas.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9205efa7-019c-402d-8320-214298ff1ccc/15440698651.pdfIn PDF document text
- http://najorenowodume.epizy.com/correct_chain_for_husqvarna_455_rancher.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4fe27df3-436a-45ac-b64c-9a815542c349/romeo_and_juliet_act_1_scene_4_quotes_analysis.pdfIn PDF document text
- https://580b68e3-2104-4118-ae5b-4f285de1c062.filesusr.com/ugd/dad7b5_beb6503ec8e14856b0c10c458d88707c.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e922.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE922	4852 bytes
SHA-256: `d5a27624cc802237f4011584925ce4d060f533998f23a4aa015514cdb8155ea2`
`font_01_sfnt_off0000f994.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF994	11384 bytes
SHA-256: `5b85259c2b130ac78c2f16361e4dc24f8126b4fb2bf6d6718843da7815a93ef7`
`font_02_sfnt_off00011e87.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11E87	4324 bytes
SHA-256: `ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230`

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