Malicious PDF — malware analysis report

Static analysis result for SHA-256 edbbabeadb713d89…

MALICIOUS

PDF

107.4 KB Created: 2021-06-05 06:49:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d65e27d41d01326f707c562b148950fd SHA-1: acc69d26b36e87641351d2a2a426d146121d55cf SHA-256: edbbabeadb713d8940719d65fff3559b8e84307b249bf8da3694e58413b2cf92
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL that redirects to a suspicious domain, likely serving as a phishing lure or a download site for further payloads. The document body, though heavily obfuscated, contains text related to the URL's search query, suggesting a social engineering pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://pixomot.ru/pbw?utm_term=cuantos+huevos+ponen+las+tortugas+de+agua+dulce
    • https://cdn-cms.f-static.net/uploads/4417422/normal_601d292355f3a.pdf
    • https://cdn-cms.f-static.net/uploads/4471710/normal_5fd6ee7306fae.pdf
    • https://cdn-cms.f-static.net/uploads/4447097/normal_5fd28ad399c67.pdf
    • https://cdn-cms.f-static.net/uploads/4454422/normal_601fa81559d11.pdf
    • https://static.s123-cdn-static.com/uploads/4408863/normal_5fcd86ab05675.pdf
    • https://cdn-cms.f-static.net/uploads/4499653/normal_60b96867268e5.pdf
    • https://cdn-cms.f-static.net/uploads/4381105/normal_6069beb81065d.pdf
    • https://static.s123-cdn-static.com/uploads/4401703/normal_5fcccdc36e1a5.pdf
    • https://cdn-cms.f-static.net/uploads/4417140/normal_605d8681af7b5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bopelijexuf.pbworks.com/f/49778589087.pdf
    • https://uploads.strikinglycdn.com/files/93664967-ffbc-470a-9537-cd177d8b0172/42539458218.pdf
    • http://sijomirurefi.pbworks.com/f/finding_the_area_of_parallelograms_triangles_and_trapezoids_worksheet.pdf
    • http://zigunef.pbworks.com/f/kupotavirelejevelaxuxoze.pdf
    • https://uploads.strikinglycdn.com/files/e80104b9-979f-417f-a6df-81e8ddcf1ea5/35445565459.pdf
    • https://uploads.strikinglycdn.com/files/1f909edd-fc37-4069-999b-a137068d42ea/59184966733.pdf
    • http://dumogaluz.pbworks.com/w/file/fetch/144575037/how_to_play_one_block_skyblock_1.16.5.pdf
    • https://uploads.strikinglycdn.com/files/36c306bb-b150-476f-b146-fc0a056ba9b1/culligan_n8_custom_water_softener_manual.pdf
    • https://uploads.strikinglycdn.com/files/6d08cd41-7270-4f37-acb2-5066d3fa26f4/95486867614.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.

FilenameKindSourceSize
font_00_sfnt_off000168d4.bin
de04cdd872b153fc3a4b346f63510c53546d2e022d9ee106addc4fe90d21e29c
pdf-font-stream PDF embedded font (sfnt) at offset 0x168D4 5300 bytes
font_01_sfnt_off00017ad8.bin
8c2eeb9b7a3db05fb9c7dc790b51a31e99ce47df14fe4fa5795fd455412482fa
pdf-font-stream PDF embedded font (sfnt) at offset 0x17AD8 11228 bytes