Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab7a4308638614fe…

MALICIOUS

PDF

84.2 KB Created: 2021-03-13 23:35:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 15646a7dc14461715673ac6c4136fa4f SHA-1: bc256ef7f13da1be1f5e8f541d529fb8f2a85103 SHA-256: ab7a4308638614fe341b71bba6af44d07bc91f43eeff522bcbcdaffa4ad38c47
126 Risk Score

Malware Insights

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

The PDF contains numerous external URIs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though partially corrupted, suggests a lure related to a 'business model navigator book pdf'. The presence of multiple disposable domains and link farms indicates a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

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://midufefew.ru/award?keyword=business+model+navigator+book+pdf PDF link annotation
    • https://mupasifuv.weebly.com/uploads/1/3/2/6/132680827/7253091.pdfIn PDF document text
    • https://torewofatovamek.weebly.com/uploads/1/3/4/1/134108613/remakijalodaleje.pdfIn PDF document text
    • http://goodshopsales.xyz/discussion_questions_iron_jawed_angertqjw.pdfIn PDF document text
    • https://vumimexuderuwaz.weebly.com/uploads/1/3/1/8/131871863/9660812.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471948/normal_5ff636e70e4ae.pdfIn PDF document text
    • http://figupatofewox.iblogger.org/69568689433.pdfIn PDF document text
    • https://kukanoli.weebly.com/uploads/1/3/4/6/134641169/marijaji_jozivojo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426810/normal_5fddbd03b7031.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417662/normal_603dc38a60a00.pdfIn PDF document text
    • https://xinuxarovota.weebly.com/uploads/1/3/0/7/130776268/1070618.pdfIn PDF document text
    • http://boxberry-24.cc/568770921460fxpm.pdfIn PDF document text
    • http://save50it.info/mubedinogugaxoxgtawh.pdfIn PDF document text
    • http://instas.site/99367783142w3wej.pdfIn PDF document text
    • https://nazumuliwoj.weebly.com/uploads/1/3/1/3/131383416/tuneluleko.pdfIn PDF document text
    • https://fazolusafiwef.weebly.com/uploads/1/3/4/5/134585025/b08589.pdfIn PDF document text
    • http://wesused.22web.org/how_to_reset_westell_7500_router.pdfIn PDF document text
    • https://sotugipuzelaj.weebly.com/uploads/1/3/0/7/130738723/zunuwalefe-fizilelogusov-gokisiz-gazoz.pdfIn PDF document text
    • http://biotringel.shop/yeastar_s20_datasheetkkkjr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480580/normal_5fe50eb200500.pdfIn PDF document text
    • https://babexunerasosib.weebly.com/uploads/1/3/4/6/134620176/nidubigowu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sewasijibakel.epizy.com/mevona.pdfIn PDF document text
    • http://watekiz.rf.gd/what_are_high_tension_classical_guitar_strings.pdfIn PDF document text
    • http://zusewijoje.epizy.com/15429843340.pdfIn PDF document text
    • http://wulukexererumus.epizy.com/25919083145.pdfIn PDF document text
    • http://gubazit.epizy.com/algebraic_expression.pdfIn PDF document text
    • http://zarufutebere.epizy.com/rainbow_fish_species.pdfIn PDF document text
    • http://tafupudininidag.rf.gd/wugibowoviporit.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000108e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108E8 5676 bytes
SHA-256: 6c7bdd325124de84d3bb040443c7271cdebbd2955bf582cc8e088825e9f29725
font_01_sfnt_off00011c2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C2A 10876 bytes
SHA-256: ae9c924716cc00ed7e0c1b737e7a53aa90a0eee3b8b4fdc9fe283c21aa9d174d