Malicious PDF — malware analysis report

Static analysis result for SHA-256 17e6dc4d7dc98953…

MALICIOUS

PDF

90.4 KB Created: 2021-03-31 16:44:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 95cdb6ada323bb92e5a83d3d07b22b30 SHA-1: dc7ef67b0b60edae2f3592cccb5e1ea078ab7bff SHA-256: 17e6dc4d7dc98953fd86d0b91ae66f5d74113a2dc43f3f890846486d8f9af3f3
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or redirection mechanism for malicious content. The document body, though heavily obfuscated, appears to be a lure related to a 'scouting report'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 5

  • 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 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://golowaki.ru/123?utm_term=enyel+de+los+santos+scouting+report PDF link annotation
    • https://dagigofeno.weebly.com/uploads/1/3/4/8/134887245/deberetatujavot.pdfIn PDF document text
    • http://mixikoxuve.22web.org/56201926661.pdfIn PDF document text
    • http://wewofif.scienceontheweb.net/81522764816.pdfIn PDF document text
    • https://vidiwubiref.weebly.com/uploads/1/3/0/8/130874646/8696388.pdfIn PDF document text
    • http://nafarami.medianewsonline.com/logitech_z_5500_control_pod_compatibility.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420432/normal_600ce5edda95f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403262/normal_602f9f4910fad.pdfIn PDF document text
    • https://xolopebowuraj.weebly.com/uploads/1/3/4/6/134600193/sogoganenebus.pdfIn PDF document text
    • http://tufepuwaw.iblogger.org/angular_7_tutorial_franais.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475194/normal_602533ee3fb6a.pdfIn PDF document text
    • http://jujovobima.getenjoyment.net/derulebapenepovuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dudezela.epizy.com/25957350969.pdfIn PDF document text
    • http://tonezifimoraga.epizy.com/nixebaweredukibejafike.pdfIn PDF document text
    • http://nawexox.epizy.com/remove_duplicates_in_excel_sheet_vba.pdfIn PDF document text
    • http://gafijid.atwebpages.com/36746842110.pdfIn PDF document text
    • http://ximitexus.epizy.com/household_expenses_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/lujufativewitirulenedes.pdfIn PDF document text
    • http://wawutanow.epizy.com/tixofev.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/7402962961.pdfIn PDF document text
    • http://bizepusozuj.epizy.com/72690994843.pdfIn PDF document text
    • http://mipusefifiwud.epizy.com/6574786114.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/ua_apollo_twin_mkii_duo_vs_quad.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/cd_dvd_windows_7_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/how_to_ignore_a_guy_to_get_his_attention.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_off00010f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F68 5300 bytes
SHA-256: e8ee24ef6b483ca114d0cc0a3fed4e7e231b7cd13a867fef94c3d86326209fcb
font_01_sfnt_off0001218b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1218B 10912 bytes
SHA-256: 95b4c2d75020dfb26664ddc24ac27eb282e1deeeda1ef3314b696f61569ef636
font_02_sfnt_off000146df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x146DF 16060 bytes
SHA-256: 1a51fac5cecc05d5f0a5d3b698ffe240ccab470cdba6a823ba27c6c2a12c20dd