Malicious PDF — malware analysis report

Static analysis result for SHA-256 08a70ec9a7d8ca13…

MALICIOUS

PDF

70.9 KB Created: 2021-01-04 22:17:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 3bb28f94e7d855f657ed42d9d02ab3cd SHA-1: 363177ed8da43b36af11661d39dea2dd71f09d09 SHA-256: 08a70ec9a7d8ca132049ef2f247e48093155400fe8fbf6ae4c272a36d46c0abb
244 Risk Score

Malware Insights

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

This PDF document is classified as malicious, exhibiting characteristics of a link farm designed to redirect users to potentially harmful websites. The embedded links, such as 'https://traffmen.ru/aws?utm_term=business+plan+project+in+ethiopia+pdf', are indicative of phishing or malware distribution attempts. The presence of numerous links on disposable hosting further supports this assessment, suggesting a tactic to evade detection and spread malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffmen.ru/aws?utm_term=business+plan+project+in+ethiopia+pdf In PDF document text
    • https://zitilegog.weebly.com/uploads/1/3/4/5/134501444/bupotabozitox-busibob-mudugijijoxogel-daberanisoko.pdfIn PDF document text
    • https://geromebazur.weebly.com/uploads/1/3/4/8/134895645/rigokijakovasakeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371265/normal_5fa4a972193d2.pdfIn PDF document text
    • https://pinoxelu.weebly.com/uploads/1/3/4/1/134108818/8690565.pdfIn PDF document text
    • https://panenojaro.weebly.com/uploads/1/3/4/4/134482399/mabelijojukibepe.pdfIn PDF document text
    • https://cdn.sqhk.co/vikoparif/Oiegjii/figotobetokorogejupudo.pdfIn PDF document text
    • https://gutirupivib.weebly.com/uploads/1/3/4/7/134768574/fupabijajoju_gazebivi_defawaxubofigu_petiroma.pdfIn PDF document text
    • https://dumopodowejuna.weebly.com/uploads/1/3/4/5/134591879/fa4ee.pdfIn PDF document text
    • https://jipuzalo.weebly.com/uploads/1/3/4/6/134693454/6487675.pdfIn PDF document text
    • https://xobagosuwetir.weebly.com/uploads/1/3/2/6/132680986/3cb5bd.pdfIn PDF document text
    • https://cdn.sqhk.co/mezugifosa/6hfhcSx/mechanical_keyboard_switch_colors_explained.pdfIn PDF document text
    • https://pelefazefipaguj.weebly.com/uploads/1/3/4/8/134892892/8209044.pdfIn PDF document text
    • https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/d3bb2648bf4569f.pdfIn PDF document text
    • https://dugufenejoropez.weebly.com/uploads/1/3/0/7/130775504/malosejeri.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449627/normal_5fec04eccb53d.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/41eb2860-d519-49f8-8a8a-ac6a3626126b/42516400117.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_off0000ca4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA4D 5248 bytes
SHA-256: 4ba01d4ab687a52c96634a3f093d51486d4559103c402a4ca6fac0b1f9f29173
font_01_sfnt_off0000dc18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC18 10584 bytes
SHA-256: a409e2df47da0404be9a4e3a375b967c58e935d704777ce6a4191c066e08f208
font_02_sfnt_off00010059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10059 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378