PDF malware analysis — malicious · 8e83023a7d0379ee

MALICIOUS

PDF

52.6 KB Created: 2020-10-27 06:36:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: fbf4ca78256d728e3ee92f39b611d3b9 SHA-1: d04e8410ea83f2517959e813b870cf37289ff904 SHA-256: 8e83023a7d0379ee2536b3acae8d47cf32bb1ae0a589052a450d3522eb8bf1a3

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. The document body, though heavily obfuscated, appears to contain instructions related to applying a vinyl decal, which is likely a lure to encourage clicking the malicious link. The presence of a password archive lure heuristic suggests this PDF may be part of a multi-stage attack where the actual payload is hidden within a password-protected archive.

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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://ggtraff.ru/strik?keyword=how+to+apply+vinyl+decal+to+glass+block In PDF document text
- https://cdn-cms.f-static.net/uploads/4405195/normal_5f91a4ed46a28.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373997/normal_5f8e8cfe5f769.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://uploads.strikinglycdn.com/files/47e71c2e-05fa-408a-94c7-5b4c4e92f312/wemelugeloxewowofo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/831db695-db9b-4164-a9b7-77fc9d33919b/74052771093.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7e743c46-f2fc-4b6b-85c1-7ab99a84a508/zivuduwetis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cf66d3d4-4275-497c-aaf5-e726265453b9/the_two_sensations_that_are_emphasiz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0aa5350c-3aa8-4ef7-9b83-71741484c8ad/bironozosu.pdfIn PDF document text
- https://s3.amazonaws.com/ruzumeb/niwufegepovi.pdfIn PDF document text
- https://s3.amazonaws.com/xefejevife/99487242531.pdfIn PDF document text
- https://s3.amazonaws.com/fefurorobumi/53398403228.pdfIn PDF document text
- https://s3.amazonaws.com/susonanezaj/dermatophytes_definition.pdfIn PDF document text
- https://s3.amazonaws.com/dogazisuze/advanced_wireless_networks_technology_and_business_models.pdfIn PDF document text
- https://s3.amazonaws.com/pazifetanegapu/abnormal_psychology_book_in_hindi.pdfIn PDF document text
- https://s3.amazonaws.com/vuforewebub/dermatoscopia_carcinoma_espinocelular.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/17331dae-f7cb-42e4-9e4d-9651da56003f/xifumizitikukubapinewi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cb8ec490-5ad3-490b-819f-e42d49fd7159/89529620458.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dec6c6f4-16e5-460d-8f7d-ce8fdf0bce82/sentence_structure_worksheets_with_a.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/04c0099e-0df8-491b-a9a6-7366f223bf04/54646257711.pdfIn PDF document text
- https://s3.amazonaws.com/jafujasiwetid/visits_to_the_blessed_sacrament_alphonsus_liguori.pdfIn PDF document text
- https://s3.amazonaws.com/toliwudalamem/appalachian_state_university_campus_map.pdfIn PDF document text
- https://s3.amazonaws.com/gupawupigawono/nivugadidizuxurowux.pdfIn PDF document text
- https://s3.amazonaws.com/susopuzupure/basic_shapes_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/gupuso/advanced_algebra_equations.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007ef7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EF7	5352 bytes
SHA-256: `275dcf1312f376a504de54d20996cdd7e1d49db6e919b629e820c14ff7eb94f5`
`font_01_sfnt_off00009151.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9151	10784 bytes
SHA-256: `83df83c4713c79c3abfd725a9359a5fd319ab843eb656d20774bf64482dba437`
`font_02_sfnt_off0000b63b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB63B	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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