PDF malware analysis — malicious · 84d1c17d0627af38

MALICIOUS

PDF

43.3 KB Created: 2020-10-29 20:52:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31

MD5: afd04df59e7fd013d2c82648bbeccbac SHA-1: bb26297e2815eae32550c3ef098bf040882df667 SHA-256: 84d1c17d0627af38653df07fce63a8c2ba088bd0009d4f317a65347a4015a0c0

94 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://ttraff.link/123?keyword=bosch+gts1031+vs+dewalt+dw745'. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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://ttraff.link/123?keyword=bosch+gts1031+vs+dewalt+dw745 In PDF document text
- https://wemibevufiwoseb.weebly.com/uploads/1/3/0/8/130813314/xowemuveduxal_tedemeg_fizife_navujor.pdfIn PDF document text
- https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/xufawuk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381748/normal_5f91b4f6a7b80.pdfIn PDF document text
- https://motadali.weebly.com/uploads/1/3/4/3/134368257/dikezitiwemela.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378165/normal_5f8ab64e2cf1f.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/lupebesu/kofuxixu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/422946db-2fbd-42a4-8275-deaa7fbe14b3/71726058059.pdfIn PDF document text
- https://s3.amazonaws.com/litunux/wajovewapixa.pdfIn PDF document text
- https://s3.amazonaws.com/leguvefu/noxijasedomepeluzegil.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4296623e-2208-4317-8f56-3a91361ce747/xotavezaxemik.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_off000068b8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68B8	5956 bytes
SHA-256: `267990980a5b0a4ed5980ea793e3bedb23bbeada74f76c2674cde9a72dc4a1d2`
`font_01_sfnt_off00007d2a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D2A	10460 bytes
SHA-256: `8e67677682dd99f146857579349f0431b0555c07b72bd345ac3bfa825823132c`

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