Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5920bed619f52c…

MALICIOUS

PDF

60.5 KB Created: 2020-09-18 06:31:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7395da194377c51e5183435bc3ec9bca SHA-1: be11c1e95d7f49d59a5ba1e938663a559e66e38c SHA-256: 2e5920bed619f52c2e3ec7a50b26ddbcfa6b7b5ac80015c4e13348d550e5702e
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link 'https://ttraff.me/wix?keyword=i+wish+i+were+a+butterfly+poem' points to known malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests the document is part of a link farm, with 'http://files.meganpirrocco.com/uploads/1/3/0/9/130969751/1224451.pdf' being one of many such links. The document body itself is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf, but the primary malicious intent appears to be the redirection via the embedded URL.

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=i+wish+i+were+a+butterfly+poem In PDF document text
    • http://files.meganpirrocco.com/uploads/1/3/0/9/130969751/1224451.pdfIn PDF document text
    • http://files.alexbaecher.com/uploads/1/3/2/7/132740763/gidip_tuvekajonotagor_vekurosifo_koxejowula.pdfIn PDF document text
    • http://files.logcabinrental.ca/uploads/1/3/0/7/130738701/48ab9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://b7d83541-9bf6-4264-862d-b23f7780cc63.filesusr.com/ugd/2dbf5a_ba4cc52245f840a1b9eb71d95cf080b4.pdf?index=trueIn PDF document text
    • https://692385d8-fc6f-4d1d-9771-b8ae4c6bc7df.filesusr.com/ugd/8ab72e_e9d6b40fbc2a4c9ca6fd86d55a566d41.pdf?index=trueIn PDF document text
    • https://7d3d9c8c-3fad-416d-9d9e-a327b4d5d064.filesusr.com/ugd/eb4c03_42960c0b0e294b6aa676f22a0d1c194c.pdf?index=trueIn PDF document text
    • https://4efa75c7-6447-4a70-9e2e-2f6b1b530074.filesusr.com/ugd/11baf9_921d8b4caa704f2e96b3cb7b4bf8acba.pdf?index=trueIn PDF document text
    • https://7e2608d0-98cc-4ada-96bf-be5c2bf1142b.filesusr.com/ugd/24d943_ad05b2bc6b864169b65fbebcb5ecf8c4.pdf?index=trueIn PDF document text
    • https://7d7aaedb-7ac1-4410-8a80-c9df2ac4e467.filesusr.com/ugd/c33cdb_78e31e79294f48ea9598ed5f0665d4d6.pdf?index=trueIn PDF document text
    • https://65631cb3-8a27-44f7-a5be-1720f97e4744.filesusr.com/ugd/48d9a1_c510f316177546709ad19d30bc44e10e.pdf?index=trueIn PDF document text
    • https://6b81303a-7d1a-4b83-96be-10a922426a58.filesusr.com/ugd/2072cd_afead9375ea94eeebc926c12e60a9a70.pdf?index=trueIn PDF document text
    • https://ee53f1a1-e397-468f-a88b-b1c9c97f6a1b.filesusr.com/ugd/95b9ea_2869ecaa29174365a629a7dc1b2e27b1.pdf?index=trueIn PDF document text
    • https://432f2cbc-7ee9-45f2-a451-7ae32e30b8a4.filesusr.com/ugd/1fbf8b_3710279b9184460da23c753207018f9f.pdf?index=trueIn PDF document text
    • https://9a1e1859-9c19-439b-951f-ea8ec36f698d.filesusr.com/ugd/007d40_ea3fa73b25334807ac25bf37b80a6039.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA648 2828 bytes
SHA-256: a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8
font_01_sfnt_off0000b042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB042 5412 bytes
SHA-256: f05c97061b33811b7781bf03870fa3a5a50b60dc7d4900ef709626481065fad3
font_02_sfnt_off0000c296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC296 9984 bytes
SHA-256: f69dc6798bcb48e5c3811f9cc66dfa2d3c8f2616d3e0215779d1ca13a7fd0f78