Malicious PDF — malware analysis report

Static analysis result for SHA-256 960f285a297d382d…

MALICIOUS

PDF

87.5 KB Created: 2021-03-28 11:32:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 78c8e37e8239b22adb8b25d6437d9966 SHA-1: b89c155eca24c5232474be113af3f348db6144c8 SHA-256: 960f285a297d382d1d7166b91247ef20a3ca4ba9fea7809f97015dd687064733
154 Risk Score

Malware Insights

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

The PDF contains malformed streams and multiple external URIs, indicating an attempt to host malicious content. The presence of a 'download button' heuristic and numerous links to disposable hosting services suggests a phishing or malware distribution lure. While no scripts were directly extracted, the PDF structure and external links point towards a malicious workflow designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/award?keyword=athlean+xero+pdf+free PDF link annotation
    • https://pitalozel.weebly.com/uploads/1/3/1/3/131384414/5526895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403404/normal_601a884ce1e90.pdfIn PDF document text
    • https://wisetigu.weebly.com/uploads/1/3/4/3/134357320/nexuf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446638/normal_600401bb36456.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425227/normal_5fcb57cd70269.pdfIn PDF document text
    • https://kibodowusi.weebly.com/uploads/1/3/4/5/134588916/nuwovudi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412183/normal_5fed434c29f43.pdfIn PDF document text
    • https://wavadubo.weebly.com/uploads/1/3/0/7/130775728/ziwigubago-dategiwil-rovabirodikebu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://167c2301-eccc-4e3a-a609-38a4f17b9bf8.filesusr.com/ugd/b1dabf_05946030d6f44788a50c80955bf81cd3.pdf?index=trueIn PDF document text
    • http://telewazikenap.rf.gd/56147658996.pdfIn PDF document text
    • http://nadowitumo.rf.gd/40556588693.pdfIn PDF document text
    • http://jelazib.epizy.com/35824904309.pdfIn PDF document text
    • http://junimufik.epizy.com/cules_son_los_animales_que_estn_en_peligro_de_extincin_en_honduras.pdfIn PDF document text
    • http://xedaripa.epizy.com/pexen.pdfIn PDF document text
    • http://nivawuxiki.rf.gd/asset_allocation_form_for_employees.pdfIn PDF document text
    • https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_afb82c72441e46afa58298691e5a66dc.pdf?index=trueIn PDF document text
    • http://butenoze.epizy.com/nesuxoxekebaguzinek.pdfIn PDF document text
    • http://sogefotatuledis.epizy.com/84859782727.pdfIn PDF document text
    • http://bidejepeko.onlinewebshop.net/givezaxet.pdfIn PDF document text
    • http://zusewijoje.epizy.com/55833790751.pdfIn PDF document text
    • http://tuladupanekeziv.epizy.com/63835263770.pdfIn PDF document text
    • http://romepasuv.myartsonline.com/union_budget_speech_2020_19.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6BA 2960 bytes
SHA-256: 4253ce374f546ed82c0b962bfad5e193173c5af7311640f7068ccdda2cb38311
font_01_sfnt_off0001013b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1013B 5008 bytes
SHA-256: c35f6cdbf9a5c1dd434815854dca6f847d7848a972e74ecd0b3ed2d3624b7ada
font_02_sfnt_off00011243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11243 11692 bytes
SHA-256: 3d0b1ab59087773b66b18eecb276cfd538e7ddb87eb60de952e3175f7d217b9c
font_03_sfnt_off00013951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13951 16084 bytes
SHA-256: 6049f7be1eb58524b2bfe5e0ab34f4300347f26dbb23ab6ad605e3b0d5647553