Malicious PDF — malware analysis report

Static analysis result for SHA-256 c04387db055f0f40…

MALICIOUS

PDF

41.5 KB Created: 2020-11-09 12:15:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 4c0addfb3648f149b846afc0f564b539 SHA-1: 730311bb5f40fa65845af03edebd1155c68ec46c SHA-256: c04387db055f0f404f568de396bca7b1c236ea35e303db725f49b439d4e29460
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://trafftec.ru/aws?keyword=free+coloring+pages+printable+4th+of+july PDF link annotation
    • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/jowapamoleva_puzulaloxofegej.pdfIn PDF document text
    • https://zavomafig.weebly.com/uploads/1/3/4/3/134356936/dabokifijeduzixiguza.pdfIn PDF document text
    • https://mesoxofag.weebly.com/uploads/1/3/4/3/134314287/8707535.pdfIn PDF document text
    • https://ridolagu.weebly.com/uploads/1/3/0/7/130775195/gojagativite.pdfIn PDF document text
    • https://vefoxetewezelir.weebly.com/uploads/1/3/1/4/131483279/5113262.pdfIn PDF document text
    • https://gaxowewogilul.weebly.com/uploads/1/3/4/4/134401205/6941034.pdfIn PDF document text
    • https://zakiguranul.weebly.com/uploads/1/3/4/4/134480990/27829e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371246/normal_5f894fb6af8db.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/5790171d-cc46-4dfc-9122-bd4615576816/proton_vpn_crack_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df9c94a1-2330-427e-b7d0-3fe8903c1f0a/nufowika.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f12bd01-67f3-4138-9c4a-191b4c482358/82895790422.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcc4f8b4-2aa1-4acb-823a-1869ea98ab29/45154966099.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92368b84-e3a9-4444-829c-821f9af7bca9/vogue_73_questions_list.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000552e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x552E 5520 bytes
SHA-256: d2498b3a2e48b396ed823d4824e6063340417c0896e6b96d14da0bd5d887600f
font_01_sfnt_off000067f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F6 10304 bytes
SHA-256: aa6e594721bae7f71905bef4f5f0b9f1b4abaf48dafdd0213f71f6ccbc2851ec
font_02_sfnt_off00008b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3F 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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