Malicious PDF — malware analysis report

Static analysis result for SHA-256 00cbd9727ff06639…

MALICIOUS

PDF

73.0 KB Created: 2021-05-31 22:26:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 07526776131dec5aca3ccc9228822266 SHA-1: 094df598c8b39f65210604a2ae33797a7aaf8827 SHA-256: 00cbd9727ff06639ce364b2bcd0e5110905a21e51af31b51ddc2605e091f2195
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as a link farm and is detected as a phishing trojan by ClamAV. It contains numerous external links, with the primary malicious URL being https://garglob.ru/pbw?utm_term=recep+ivedik+4+%252B+35+dakika+full+izle. The document body is heavily obfuscated and appears to be a lure, likely intended to redirect users to malicious sites for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://garglob.ru/pbw?utm_term=recep+ivedik+4+%252B+35+dakika+full+izle PDF link annotation
    • https://lopodudox.weebly.com/uploads/1/3/4/3/134339354/zudezirobiwetorop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389384/normal_5fd055b649ba9.pdfIn PDF document text
    • https://pivokobofu.weebly.com/uploads/1/3/4/6/134648089/7875461.pdfIn PDF document text
    • https://zetozegazironik.weebly.com/uploads/1/3/2/6/132696155/de07e21f53.pdfIn PDF document text
    • https://kijesutezex.weebly.com/uploads/1/3/5/3/135328712/6363626.pdfIn PDF document text
    • https://fopudodesesiwen.weebly.com/uploads/1/3/4/3/134344932/76ac985d8.pdfIn PDF document text
    • https://vapatukubarokul.weebly.com/uploads/1/3/0/7/130739856/mabajixukefefolufel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366347/normal_60399cb878ed3.pdfIn PDF document text
    • https://roluwisotem.weebly.com/uploads/1/3/4/3/134368144/zawefakuxotarifom.pdfIn PDF document text
    • https://zidabowejixu.weebly.com/uploads/1/3/1/1/131163559/bbacab31.pdfIn PDF document text
    • https://zelowomuguzak.weebly.com/uploads/1/3/1/3/131379017/lugewemazekalitokeno.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459029/normal_5fc6b38f1573f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408987/normal_6068e97c3dec2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454821/normal_5fee632dae112.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472188/normal_606920cf06afb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387924/normal_60043f2bc8d4a.pdfIn PDF document text
    • https://getomipo.weebly.com/uploads/1/3/4/4/134403721/zokenaz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/638e9e67-654b-4944-b15e-8094694a5ea4/filosofia_del_derecho_definicion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f75273d-d847-411f-9d12-235cdf687c58/vozulemezogas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ab9b530-948b-4c4d-943a-8ce643291e01/circular_11_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e28a65ee-85fd-4c84-8195-f8401e3a82aa/11195211240.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC73D 5432 bytes
SHA-256: e4b4d8ea9519ff95b0c58c3304abd9e85fb9115cbda9d6b56e63fc886ded2e0f
font_01_sfnt_off0000d9fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FA 11776 bytes
SHA-256: b4f08a202d254d9bb6b533e6d0747e2f23ab218b7c205b038fdb6d225c4928b2
font_02_sfnt_off0000ff21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF21 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15