Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbb56ee48ede0fd8…

MALICIOUS

PDF

50.8 KB Created: 2020-10-23 22:14:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: ca2f6ae8e01ac6ee833ee616636a1d50 SHA-1: d02d76a3966179176c4ccac23444d799e8c4cf0a SHA-256: bbb56ee48ede0fd871ed466dd8a84e67bc2e827849f7213797058ad793a2f4e8
184 Risk Score

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.cc/123?keyword=les+formes+d%2527energie+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366340/normal_5f8ef81163f02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379043/normal_5f90074e9888d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f874401b1a7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384145/normal_5f918f3d6591d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384325/normal_5f921371778a5.pdfIn PDF document text
    • https://gekitudijelal.weebly.com/uploads/1/3/4/2/134265938/6935460.pdfIn PDF document text
    • https://wozofawado.weebly.com/uploads/1/3/0/8/130874325/vikasorapo-gawerizexid-segolaxakeminiv-fatozogilulimu.pdfIn PDF document text
    • https://ditiwudo.weebly.com/uploads/1/3/1/4/131452947/fulutivodozoruxa.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/ladewigawujelexupub.pdfIn PDF document text
    • https://xotiroxo.weebly.com/uploads/1/3/0/7/130776105/mazunetunez_pejarojisuzibu_puwozuzuwifu.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://cdn.shopify.com/s/files/1/0433/1791/9909/files/joint_venture_agreement_construction_south_africa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5104/1447/files/call_recorder_pro_apk_for_huawei.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9087/9667/files/phantasus_arno_holz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69ee0016-dcd7-4d98-9595-103215dadf01/86115237315.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58106d9f-048a-469c-9b7a-f2684b0f83c6/kubomowogezo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca275b53-4a70-489c-9aef-6fe84a3137cc/92957803187.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c0856b3-a7ff-44cd-81e0-9a5a3d82f54a/3132137316.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/813bd0dd-7ed6-48e1-bcc9-71285b12f483/42920409670.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79f25339-efef-4a9b-a9e7-3d2eb5275dc6/bedawudiwowi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de0063ff-6c88-4f7d-8587-2e5b646a2777/mitefujapalo.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_off0000797a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x797A 4800 bytes
SHA-256: 5bb8ac45cccda212a3fa8f5d196a58971e46bda2b6af6d9719d3c86e48104f40
font_01_sfnt_off000089b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B2 11748 bytes
SHA-256: 36b2a97a5bf3d9a85b35e626e95af9fa75ee17e0106bdb65594bf0fdb63afc3a
font_02_sfnt_off0000adce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADCE 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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