Malicious PDF — malware analysis report

Static analysis result for SHA-256 05c2db83e7f669e2…

MALICIOUS

PDF

49.9 KB Created: 2020-09-17 07:08:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c843459faf41d20b99ae0b9fd7475443 SHA-1: c1556c6955ec2115fa7b2e14fdf2f69cb8369b2b SHA-256: 05c2db83e7f669e299f0da44f92407d48074674529c6fb4be5bfdc7a8284c088
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a significant number of embedded links, with at least one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are consistent with a link farm designed to distribute malicious content or phish users. The presence of numerous PDF links suggests an attempt to create a link farm for SEO manipulation or to host a large number of malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/wix?keyword=fear+ward+vanilla+wow In PDF document text
    • http://raxisowe.thevegantravels.com/uploads/1/3/1/1/131164250/nezeselabeforapoz.pdfIn PDF document text
    • http://vepuwujil.fatzdomino.com/uploads/1/3/1/4/131482992/21b082.pdfIn PDF document text
    • http://files.tasteofhamilton.co/uploads/1/3/2/3/132302924/557158ecabcd2.pdfIn PDF document text
    • http://files.selahchurch.com/uploads/1/3/2/8/132814949/takaxud.pdfIn PDF document text
    • http://sonoso.brancovfinancial.com/uploads/1/3/1/8/131856160/4353258.pdfIn PDF document text
    • http://lemaro.portcitygymnastics.net/uploads/1/3/1/4/131408183/38de19081.pdfIn PDF document text
    • http://ridutofag.scholarwanders.com/uploads/1/3/1/4/131452883/duren-visaligobu-bunibifawuwo-gakodegevi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://28c844cd-7e5a-4783-9a4e-b8bb526bffc5.filesusr.com/ugd/a2e20a_36a8548b1f46441ea9beb62ba2f9c431.pdf?index=trueIn PDF document text
    • https://56dd8425-198e-4854-bb57-77bf64406165.filesusr.com/ugd/6116da_7c47d7c124314d288656d313e2946942.pdf?index=trueIn PDF document text
    • https://58a844be-f511-4719-bf8f-1efa9540ff04.filesusr.com/ugd/26f730_cb04392808fb43b5857302103bf9716a.pdf?index=trueIn PDF document text
    • https://69e6c722-b221-444c-8b5c-1c9b2c82c333.filesusr.com/ugd/9c66ff_50877c65e39a49ee8c558682de0501f7.pdf?index=trueIn PDF document text
    • https://dc0771e7-8b40-4051-85df-f4a90e63e256.filesusr.com/ugd/2eedf1_113f7404a64c44aeaec758fb6de4b028.pdf?index=trueIn PDF document text
    • https://a943ccc9-62df-4099-8f66-86888a8b5d9a.filesusr.com/ugd/df7b34_b003b67b669d4bbca59a0e49cf8ed980.pdf?index=trueIn PDF document text
    • https://13be0222-c126-4d5c-a57d-291ac527d0c9.filesusr.com/ugd/b7ed05_eba3b78b4a6f4368a0867db502a1ba4e.pdf?index=trueIn PDF document text
    • https://6955fd1f-3480-4348-a316-5c165b445724.filesusr.com/ugd/e80f4c_79bc2f82d825458b86b1207f360bf3a7.pdf?index=trueIn PDF document text
    • https://cf4202cd-cac2-40a1-939d-44d9c880e448.filesusr.com/ugd/debdc1_57da8a868629434ea44d5d6085d769e6.pdf?index=trueIn PDF document text
    • https://05f9ae52-1bdd-4262-aadb-dc09713fefb2.filesusr.com/ugd/8ce377_f3ac5f7f5d7d4314bccdbb164df75c51.pdf?index=trueIn 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.

FilenameKindSourceSize
font_00_sfnt_off000086f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F2 4748 bytes
SHA-256: 8da86916058c63aa69bb4857a2d9e96e4858beb63a3dda6e21f803c37aa6574e
font_01_sfnt_off0000973c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x973C 10468 bytes
SHA-256: 8f1c18f26cf9606640b6899d0c96abeb692f14083e336cf80f344d58a42777cd