PDF malware analysis — malicious · 828fda8c0b18101b

MALICIOUS

PDF

38.6 KB Created: 2020-10-26 21:42:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: ff430de132900caa894ca80aff1dbf1a SHA-1: 3ff0b1694ac752e1155317956421bde6e4e60286 SHA-256: 828fda8c0b18101be450704c0bee0f89151afeaf659cdffe9b63b3638657fd3b

162 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, masquerading as a collection of novels, that redirect to malicious infrastructure. The primary malicious URL identified is https://gettraff.ru/wb?keyword=amrita%20pritam%20novels%20in%20urdu%20pdf, which is flagged as a known malicious redirector. The document's structure and the presence of embedded links suggest an attempt to lure users to malicious sites, likely for further exploitation or phishing. No scripts were extracted, but the PDF's nature points to a phishing or redirection attack.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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://gettraff.ru/wb?keyword=amrita%20pritam%20novels%20in%20urdu%20pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4409092/normal_5f92c54bc4d04.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365540/normal_5f93e90594ffe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372087/normal_5f891cb6375a0.pdfIn PDF document text
- https://mejawazur.weebly.com/uploads/1/3/4/2/134265830/5e4aed73ce9ef.pdfIn PDF document text
- https://jonipafatanepa.weebly.com/uploads/1/3/2/7/132741476/550cc019f.pdfIn PDF document text
- https://zavomafig.weebly.com/uploads/1/3/4/3/134356936/xibakedulawemasuf.pdfIn PDF document text
- https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/1196878.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/jamokaroxoj/456807933.pdfIn PDF document text
- https://s3.amazonaws.com/vazisi/monik.pdfIn PDF document text
- https://s3.amazonaws.com/jidosatikim/bunga_soka.pdfIn PDF document text
- https://s3.amazonaws.com/leteraxewe/cambios_psicologicos_de_la_mujer_embarazada.pdfIn PDF document text
- https://s3.amazonaws.com/henghuili-files/cover_letter_format_for_job_application_for_experienced.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6636/8935/files/sub_rogue_3.3_5_pvp_rotation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/6286/0197/files/esc_eas_lipid_guidelines_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0486/8997/1350/files/61223596810.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0479/4649/8204/files/7812735014.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0496/4086/5956/files/14452570232.pdfIn PDF document text
- https://s3.amazonaws.com/leguvefu/rational_and_irrational_numbers_guided_notes.pdfIn PDF document text
- https://s3.amazonaws.com/tadovu/15236071921.pdfIn PDF document text
- https://s3.amazonaws.com/jusuberu/bticino_catalogo_2018.pdfIn PDF document text
- https://s3.amazonaws.com/jamokaroxoj/17887732635.pdfIn PDF document text
- https://s3.amazonaws.com/subud/teladuvikusibomut.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7dee3439-d7ca-4572-8d5d-742b058b20df/84792522497.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/12e4b86a-262b-4a5f-93d2-81037608b43a/bofumunafinubufafesafi.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_off000058b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x58B6	5236 bytes
SHA-256: `5b357d18d4612dbb3bd746f7dbc387ff2f719c6d859a5c592942fa1938dded3f`
`font_01_sfnt_off00006a6b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A6B	9992 bytes
SHA-256: `05516a26264b9d44626b8f3f9ad67d201fa7bf9e8b30fcb6ea28a014fc349272`

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