PDF malware analysis — malicious · fdf74491a9bfe5e4

MALICIOUS

PDF

45.9 KB Created: 2020-11-02 10:28:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7f9e2d48f801d0055e06911935024dfa SHA-1: ba7b11e3b3889093ee455eb82a69469e14c8bfdc SHA-256: fdf74491a9bfe5e447e272e5f32fcb71b2798eca04e66cd0d19c16c297fd4748

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=legendary+contracts+anthem'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the redirector link suggest the document's primary purpose is to lure the user to a malicious site, likely for phishing or further 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://ttraff.link/123?keyword=legendary+contracts+anthem
- https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/buvipulezu_gosoguj.pdf
- https://rajomiluti.weebly.com/uploads/1/3/2/6/132682989/8ab10d80.pdf
- https://cdn-cms.f-static.net/uploads/4366405/normal_5f8d4de90329e.pdf
- https://kawuloxegulul.weebly.com/uploads/1/3/4/3/134389306/xatediwenowi-wafesuraxuzim-gulineg.pdf
- https://sijevunima.weebly.com/uploads/1/3/1/8/131859613/78f7b7ac897d.pdf
- https://cdn-cms.f-static.net/uploads/4367632/normal_5f8a2c93e5a4c.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/52d79951-b7a2-47e8-9128-647546dd9686/gufadufeworobagizon.pdf
- https://s3.amazonaws.com/memul/lotifomalinoxolaz.pdf
- https://s3.amazonaws.com/pazerogasarinu/39596241063.pdf
- https://s3.amazonaws.com/xarojapi/isolated_soldier_guidance.pdf
- https://s3.amazonaws.com/punurum/black_knight_forbearance.pdf
- https://uploads.strikinglycdn.com/files/5733beab-9b6f-45cf-8181-0aa4365b1c63/74401375405.pdf
- https://s3.amazonaws.com/pozokimepe/2200_calorie_meal_plan_high_protein.pdf
- https://uploads.strikinglycdn.com/files/052f3e16-4c8e-4300-9345-98b995a2e349/mekabuponinug.pdf
- https://s3.amazonaws.com/tesapibebujep/seven_realms_series_movie.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007288.bin` `77ca8fa381edfdf1a7eab4c4b80d6031478ad66b6136b94f45b8b9bf874ea3b1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7288	5364 bytes
`font_01_sfnt_off000084a9.bin` `a46b677e05e88ca7a815d585b41fe8a9d3d6a7f97a6c2001a4ba2b219c1d94d4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84A9	11128 bytes

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