PDF malware analysis — malicious · a156dc9d0e3eb4e2

MALICIOUS

PDF

40.0 KB Created: 2020-11-04 00:59:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: db65dd4f27ccb922a3c7460a466436a0 SHA-1: 1fd6ca13cd8e759af8c3937ac79a91c5ad114ace SHA-256: a156dc9d0e3eb4e2440c6600e9635eb1158857a9fda987b45d3d55a30757b354

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is flagged by heuristics. The ML classifier also strongly indicates maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lure the user to a malicious site, likely for phishing or malware delivery.

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://ggtraff.ru/strik?keyword=mr+stark+ctmb In PDF document text
- https://mipirizu.weebly.com/uploads/1/3/2/6/132682564/rozebejakoraxema.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4392658/normal_5f97b80e9355b.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/zupenafud/kodi_apk_free_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/80fe43b7-14bf-4186-934b-fbaa5009ea99/81452029873.pdfIn PDF document text
- https://s3.amazonaws.com/pujinit/61340047975.pdfIn PDF document text
- https://s3.amazonaws.com/wixikarago/5820457538.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bebfb8f4-b8f2-4300-bd6a-38bd78ee3df0/fofewogetade.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89afcb95-768d-4996-99b4-b2c7230244ef/75435812156.pdfIn PDF document text
- https://s3.amazonaws.com/xidulumexi/guvelunepa.pdfIn PDF document text
- https://s3.amazonaws.com/mojivikapeti/68017453052.pdfIn PDF document text
- https://s3.amazonaws.com/wilugugo/central_america_map_blank.pdfIn PDF document text
- https://s3.amazonaws.com/setaxilitozuko/no_strings_attached_full_movie_online_123.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_off00005f1a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F1A	5120 bytes
SHA-256: `83e7fa608bb26099c1478c46a07ee4623ca9b3df0564754593f97d5754ad5f5f`
`font_01_sfnt_off0000707b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x707B	10312 bytes
SHA-256: `2cd5e3a0f2d3b514d640cbad715b83eeec30a0bdab7eb5302448c8e414ea60ce`

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