Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b0a98b5d6668d01…

MALICIOUS

PDF

86.6 KB Created: 2021-06-08 04:21:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 5176a2f8cc88f466bc0a5cd386f67c6c SHA-1: 5d8e2d5bc267ad8b5adcb2d8050e9ede395d361a SHA-256: 2b0a98b5d6668d01d244730ab38ac038987e6049d9f85a026dc84738efd1e81c
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, with one prominent URL pointing to a song download page, likely a lure for phishing. The PDF structure also indicates it's part of a link farm hosted on disposable domains, suggesting a campaign to distribute malicious content. No scripts were extracted, but the overall pattern suggests a phishing attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://irlanc.ru/pbw?utm_term=zindagi+ek+safar+hai+suhana+new+version+mp3+song+download+-+mr-jatt PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404965/normal_604467bfed9e5.pdfIn PDF document text
    • https://ziwirekow.weebly.com/uploads/1/3/4/5/134529616/xowinirepu.pdfIn PDF document text
    • https://danevetiwa.weebly.com/uploads/1/3/4/6/134600357/2986688.pdfIn PDF document text
    • https://jozokuxig.weebly.com/uploads/1/3/2/8/132814463/soxemiz.pdfIn PDF document text
    • https://sarotokatot.weebly.com/uploads/1/3/2/6/132682281/e5e62a7512da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460071/normal_5fccc5233f64f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408471/normal_601ce67aa7d9c.pdfIn PDF document text
    • https://gofezirorelude.weebly.com/uploads/1/3/4/4/134486205/koxokuwufobad_kipomo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444114/normal_601d94447f9f0.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4468827/normal_60b2b6f242991.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
    • http://gipomebepate.pbworks.com/w/file/fetch/144762879/sumbangan_tun_abdul_razak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4dd7986-6469-4ca3-a093-1413ba0395c7/.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ee98441-b43e-495f-ba7c-e5b8ccf34f9e/23036520319.pdfIn PDF document text
    • http://bopidix.pbworks.com/w/file/fetch/144814179/zitaporogumokotamikumuzut.pdfIn PDF document text
    • http://dukujaxosap.pbworks.com/w/file/fetch/144829131/55972862.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48307995-3ccc-408c-bdde-c9ea2472fc44/does_capital_punishment_deter_crime_statistics.pdfIn PDF document text
    • http://kigemulu.pbworks.com/w/file/fetch/144570555/vokezasidexebapi.pdfIn PDF document text
    • http://dejimebez.pbworks.com/f/27134269383.pdfIn PDF document text
    • http://misabovu.pbworks.com/f/ionic_and_covalent_bonds_lab_report.pdfIn PDF document text
    • http://mukibilevejo.pbworks.com/w/file/fetch/144608694/fifegudaroxop.pdfIn PDF document text
    • http://fulusivijomu.pbworks.com/w/file/fetch/144440415/why_wont_cricut_design_space_work_on_my_mac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e76dfa62-689d-4d0a-86f4-90e0aff6cdc5/how_much_does_mcdonalds_pay_nz.pdfIn PDF document text
    • http://xivoxibuza.pbworks.com/f/29470785256.pdfIn PDF document text
    • http://bekojifutok.pbworks.com/w/file/fetch/144738924/yo_despues_de_ti_pelicula_completa_en_espaol_latino_gratis_youtube.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_off0000fef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF1 5900 bytes
SHA-256: 306c0506433771e16c648f00ebaf1f30e108fb132b63c3f9918d91eb84938045
font_01_sfnt_off00011310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11310 12800 bytes
SHA-256: 009f5d8f0e0a2f5371f85d3576da39cecb5d90c6cd0f9be831343cccf104a8b7
font_02_sfnt_off00013ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CA4 3936 bytes
SHA-256: b53b4a804039c501a7ee41800055428c3bb005478ca59f3675a1acabb774a22a