Malicious PDF — malware analysis report

Static analysis result for SHA-256 bac90feca98014cb…

MALICIOUS

PDF

70.4 KB Created: 2020-10-02 08:51:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: bfba01d0e3958871988646688935d020 SHA-1: 748a3c9cbeea84a962cb23fc5647e99068a3f3b6 SHA-256: bac90feca98014cb7920ef1b1cda6a757f0ad71b01c158bbb33ca340b780e339
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://cctraff.ru/strik?keyword=faridabad+satta+king+live+report In PDF document text
    • http://files.bannerfieldfarm.net/uploads/1/3/2/7/132740285/ddec7c822.pdfIn PDF document text
    • http://gamukax.windwardtoeden.com/uploads/1/3/1/3/131383645/9746102.pdfIn PDF document text
    • http://files.renichedfurniture.com/uploads/1/3/1/3/131384374/b066661.pdfIn PDF document text
    • http://files.marriedbythebeard.com/uploads/1/3/1/3/131381540/dopuxirezuj_susojud_jojabivujalid_razajolawuwan.pdfIn PDF document text
    • http://wuzor.lilianholm.com/uploads/1/3/1/3/131381045/8421934.pdfIn PDF document text
    • https://site-1039661.mozfiles.com/files/1039661/23925212284.pdfIn PDF document text
    • https://site-1036719.mozfiles.com/files/1036719/mofodi.pdfIn PDF document text
    • https://site-1037057.mozfiles.com/files/1037057/84862529814.pdfIn PDF document text
    • https://site-1037849.mozfiles.com/files/1037849/sodojuxokojuseja.pdfIn PDF document text
    • https://site-1036852.mozfiles.com/files/1036852/61995927863.pdfIn PDF document text
    • https://site-1037028.mozfiles.com/files/1037028/fonagujutuzotosipaboniki.pdfIn PDF document text
    • https://site-1037193.mozfiles.com/files/1037193/38862915883.pdfIn PDF document text
    • https://site-1037283.mozfiles.com/files/1037283/vokediwawanadunedek.pdfIn PDF document text
    • https://site-1036698.mozfiles.com/files/1036698/64266043512.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e14a871-559e-45ad-a7d2-3c3a8da78c75/11278950097.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29b9eb98-4d2a-44ef-be24-f9c69066229f/23540858471.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9edde751-5b7f-4029-b3d3-77d3029484b6/97275112936.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E25 5348 bytes
SHA-256: 08c5bcb30e9230f4d812bf835512bd4dc47d91288c42c5b42f526dc1528fa6bb
font_01_sfnt_off00009061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9061 4012 bytes
SHA-256: 810c23c7eb2e40357d88c35c3787f57fc048e10f6c17e8fc3796ff774147441d
font_02_sfnt_off00009fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FD1 16428 bytes
SHA-256: b349d83e0177c2295f6115fb5ed78e0d758ab00323bc16f950ca25322c31b9dc
font_03_sfnt_off0000d27a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27A 16284 bytes
SHA-256: a3e32b5def77320cd083c1323d27af738b57c1d10b50e69f89beb8f3e22c414a
font_04_sfnt_off0000e863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE863 10336 bytes
SHA-256: a1fbf80112e034e45ac95e40f2175fb5423fa9d14ecfd5a367cebc19cb671b21

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