Malicious PDF — malware analysis report

Static analysis result for SHA-256 df803ad8207e238d…

MALICIOUS

PDF

75.1 KB Created: 2021-03-20 15:51:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4f58e01f7eb5bbfc8cfcabbd39c6798c SHA-1: 920f52e93482015bee4fb287e31c96e0930ad5ea SHA-256: df803ad8207e238d0c0dd861d540d826b980fe8004c585972e551fb073825c02
66 Risk Score

Malware Insights

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

The PDF contains numerous external URIs, with a high concentration on disposable hosting, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains references to popular media and software, likely to attract search engine traffic and users. The presence of embedded URLs points towards attempts to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://jumiwimov.ru/wix?keyword=lil+uzi+vert+mood+mp4+download PDF link annotation
    • http://bottlechainworld.com/mokuvexuke6ikbf.pdfIn PDF document text
    • https://xozejobe.weebly.com/uploads/1/3/1/4/131406614/werij.pdfIn PDF document text
    • http://vavesojijakoju.iblogger.org/fafapaxogurofij.pdfIn PDF document text
    • https://bokefelefu.weebly.com/uploads/1/3/1/3/131383825/4aca7b129b6.pdfIn PDF document text
    • https://tunuwadubozowe.weebly.com/uploads/1/3/4/3/134363043/pofinekinapemel.pdfIn PDF document text
    • https://dolibaradodusop.weebly.com/uploads/1/3/4/5/134595809/9610a095a3ba.pdfIn PDF document text
    • http://wajabub.22web.org/nupogofe.pdfIn PDF document text
    • http://nowtorrentz.com/ashton_hagans_not_draftedmqlb3.pdfIn PDF document text
    • http://glawerry.online/dead_man_walking_song_christianfc16o.pdfIn PDF document text
    • https://sigojexubaj.weebly.com/uploads/1/3/2/6/132682800/zadap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sozejof.rf.gd/79157408832.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20c05941-fe28-4777-bc44-f7fed095b165/how_to_calibrate_my_canon_printer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b640d059-8948-49b5-9387-4e5d97d4ce97/fimarola.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b6fb4ca-18e1-41a6-b9cf-56a0cec22fba/behavior_plan_examples_autism.pdfIn PDF document text
    • http://babirusup.epizy.com/dafakozelexogikewi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aacbd7f0-4b84-4da4-b94c-361d9a46d081/giwebevisibadexovupukox.pdfIn PDF document text
    • http://jodolevuvik.epizy.com/4208259725.pdfIn PDF document text
    • http://zimuwujirosi.rf.gd/diwafakexujopi.pdfIn PDF document text
    • http://genufewewirim.rf.gd/netflix_videos_to_apple_tv.pdfIn PDF document text
    • http://xaturanigofu.rf.gd/jivul.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_off0000c956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC956 5160 bytes
SHA-256: 4e4dd7be0aa7c51bbf3918a31b2e6754607e4796c6602dd0092b92b8914838db
font_01_sfnt_off0000daee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAEE 11148 bytes
SHA-256: 5d3e856f7029ac2009bfc88db92dc4edc6e87a60d3addc8c091665a5de81e01d
font_02_sfnt_off0001005a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1005A 19108 bytes
SHA-256: 37a304965c26645d1230273a838a24d03ec844a1d6a815108512a1037731ac41