PDF malware analysis — malicious · e2d44ab0e0d9124c

MALICIOUS

PDF

42.8 KB Created: 2020-10-30 08:27:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: b34d7740ac78cb920b4c8bec833376f2 SHA-1: 014600bf239d9758884001aab1ac952e85279c5b SHA-256: e2d44ab0e0d9124c2eb3f97d2a9c545cabd7374122a91eccc0369be9d15651d1

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 infrastructure, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The ML classifier also flagged this PDF with high confidence. The embedded URL, https://gettraff.ru/wb?keyword=concepto%20de%20literatura%20pdf, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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://gettraff.ru/wb?keyword=concepto%20de%20literatura%20pdf In PDF document text
- https://fidegobopoj.weebly.com/uploads/1/3/2/8/132815019/xumaz_bomasifikizok_vewurokavij_pamenup.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370073/normal_5f894f24832f8.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7237/0326/files/free_calligraphy_worksheet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c19fd3fb-a805-4933-acab-152cbf7234b5/bofusajitozonolawiboxidus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/7593/5666/files/android_floating_action_button_set_image.pdfIn PDF document text
- https://s3.amazonaws.com/wapabefizosumi/56629725812.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/5780/2133/files/17437883338.pdfIn PDF document text
- https://s3.amazonaws.com/netinuwa/stretch_marks_on_breasts_itchy.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/62da2519-2250-4b05-b836-516b8f7acf99/24085955330.pdfIn PDF document text
- https://s3.amazonaws.com/moduxanakuri/backpack_shop_vac_reviews.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_off00006736.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6736	4876 bytes
SHA-256: `c04a33d25c12f57144f8fdd2e0fae5ae355b01b13ddae940de477f15208be88a`
`font_01_sfnt_off000077dd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77DD	11520 bytes
SHA-256: `89df24a994f1a4c48fd7cc808330e205020664c81cf9678aad58e72e009ca1ab`

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