PDF malware analysis — malicious · 3b622ffc01137456

MALICIOUS

PDF

49.4 KB Created: 2020-10-25 05:57:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: cccf90254a22b8f7e1f8b37e0c75ebd8 SHA-1: e5794ad72a48896ab953696f4493c85770ffe9c2 SHA-256: 3b622ffc0113745674f29cb3c225149a825c3afc54c1274342014f2afacda990

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains numerous links, including one pointing to a known malicious redirector. The document body, though partially corrupted, includes the text 'Entretien d aide th c3 apeutique' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a large number of external PDF links further indicates a link farm designed to drive traffic to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/strik?keyword=entretien+d+aide+th%25C3%25A9rapeutique In PDF document text
- https://kerumesuni.weebly.com/uploads/1/3/4/1/134131613/2de48.pdfIn PDF document text
- https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/2c63533cedb.pdfIn PDF document text
- https://jimigafekalese.weebly.com/uploads/1/3/1/4/131407537/2028741.pdfIn PDF document text
- https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/1441493.pdfIn PDF document text
- https://zuwumepegowivos.weebly.com/uploads/1/3/1/0/131069935/8019579.pdfIn PDF document text
- https://tatunonomufobuf.weebly.com/uploads/1/3/4/3/134355176/leditimagunumuru.pdfIn PDF document text
- https://fapifejoj.weebly.com/uploads/1/3/4/2/134265577/9264474.pdfIn PDF document text
- https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/bisovelemopux_sinafokoka.pdfIn PDF document text
- https://xaranetudu.weebly.com/uploads/1/3/4/0/134016810/surirabugomelo_gidonowo_telafa.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://s3.amazonaws.com/gupuso/kazepuzamapukot.pdfIn PDF document text
- https://s3.amazonaws.com/fasanag/norm_cdf_vs_normal.pdfIn PDF document text
- https://s3.amazonaws.com/tadovu/neduvufilelopewopakafuga.pdfIn PDF document text
- https://s3.amazonaws.com/regovadeje/72960791991.pdfIn PDF document text
- https://s3.amazonaws.com/pevuwarobuvowa/bpm_en_cocina.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6621/9941/files/tera_archer_guide_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0494/7502/7111/files/fizutapefupesa.pdfIn PDF document text
- https://s3.amazonaws.com/bugutaj/financial_statement_analysis_problems_and_solutions.pdfIn PDF document text
- https://s3.amazonaws.com/zirojopemup/81242393723.pdfIn PDF document text
- https://s3.amazonaws.com/zuxadol/liposovi.pdfIn PDF document text
- https://s3.amazonaws.com/kudowo/nios_513_assignment_in_hindi.pdfIn PDF document text
- https://s3.amazonaws.com/vapelurowar/calisthenics_home_workout_plan.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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006608.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6608	4832 bytes
SHA-256: `37a4e03eabe025a816b8fa4549cbc3f60f0851ade024a88699c89232cc78dafa`
`font_01_sfnt_off00007611.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7611	3720 bytes
SHA-256: `b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b`
`font_02_sfnt_off00008174.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8174	12240 bytes
SHA-256: `55190221efdf6993d5c73166f9a97b80a7069278c9e82ebbdb00c24b0e0a4cc4`
`font_03_sfnt_off0000a796.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA796	4324 bytes
SHA-256: `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`

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