Malicious PDF — malware analysis report

Static analysis result for SHA-256 a078e14ccb4dd8ca…

MALICIOUS

PDF

82.6 KB Created: 2021-03-16 20:23:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 49cd0741481c0cfca8905ae30cf6e036 SHA-1: 18de6a2ab639e0070271ede886411835cd446580 SHA-256: a078e14ccb4dd8ca9f37cae35d13255c9002cee3f62b806ac667741e5bdb1fb9
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a link farm with numerous external links, many pointing to disposable hosting, and is flagged by ML classifiers and ClamAV as malicious. The primary URL, 'https://jumiwimov.ru/strik?utm_term=16+pulgadas+cuantos+centimetros+es', suggests a lure related to a search query, likely intended to redirect users to malicious content or phishing pages. No scripts were extracted, but the overall structure and heuristic firings strongly indicate a phishing or SEO spam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/strik?utm_term=16+pulgadas+cuantos+centimetros+es PDF link annotation
    • http://hookup681.site/jitterbug_phone_verizon1d45j.pdfIn PDF document text
    • http://dhl-order.info/sukavelibekouqtfj.pdfIn PDF document text
    • http://padlamadla.site/rekavidoxesoxotamavebesav094j.pdfIn PDF document text
    • http://magazinrf.xyz/xolefegopapozinemkhc.pdfIn PDF document text
    • http://klosheff.xyz/up_theme_song_road_edm_dancing_called3htmw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fd1f0c0-566e-480b-b77c-2beb9427f2da/gasim.pdfIn PDF document text
    • http://kateporabub.epizy.com/offline_accounting_software_free_full_version.pdfIn PDF document text
    • https://ce83042b-5faf-46b5-bcbb-9b4d05ec7d33.filesusr.com/ugd/a31856_d7bcb8cd12094c8f9a9515a005a17ded.pdf?index=trueIn PDF document text
    • https://156bb51f-0b62-477f-88ca-8620af00812b.filesusr.com/ugd/e3ff21_33410824cbee4237919885271b06529e.pdf?index=trueIn PDF document text
    • https://94db4134-5784-44c5-a63d-963e509970fa.filesusr.com/ugd/9c58c5_840890a1e8fb429588433e36153f5f6a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a798b28-d299-4009-92ea-f1f4a8b34ace/fusoxusujijawof.pdfIn PDF document text
    • https://0a01f052-6ee6-4bfa-868d-d2e49373b03f.filesusr.com/ugd/55f640_d74f10ad807343b891230cc2f2f50e19.pdf?index=trueIn PDF document text
    • https://2a983b51-2e13-4971-8c1f-a5bca3ab4353.filesusr.com/ugd/e1a791_3f2b5f7f8bf94e9c83cf55706956aaab.pdf?index=trueIn PDF document text
    • http://nufagogofuj.epizy.com/guwutoludegirowi.pdfIn PDF document text
    • https://356bbf58-84af-4bff-99a9-d03346e46411.filesusr.com/ugd/b5472a_2f21d6b12b90447897fd040460b11454.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/526772b1-ef56-471f-9770-4b3f0c559caf/igloo_ice_103_user_guide.pdfIn PDF document text
    • https://40ba1f7a-6e91-49bb-bbb8-dfbb40a2bc60.filesusr.com/ugd/22bf55_1727725f6a0c4307b48ad533736165e4.pdf?index=trueIn PDF document text
    • https://bed1e925-73f7-457c-87ff-53f226988024.filesusr.com/ugd/d4a8ce_1c93684936a942de8ecb0dc33378158f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8db7a7c7-0624-411f-a341-c6af0e0d842e/84970254699.pdfIn PDF document text
    • http://mimafesajasi.rf.gd/xonixunazena.pdfIn PDF document text
    • https://5e54d98c-4257-4cc7-9010-48f3df296eb2.filesusr.com/ugd/05240c_00becf4cc9d04c9c822b66a1af7c4d86.pdf?index=trueIn PDF document text
    • https://5c90cfa9-af55-48e2-9430-1f3580382729.filesusr.com/ugd/e2b09b_d1712b481b3248b2bfbe7be6f36fc6cb.pdf?index=trueIn PDF document text
    • http://funadorexizuju.rf.gd/96536231065.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECBC 5504 bytes
SHA-256: d10921aad10a709f84a7a51a51b80088da0baffd6b2f367244ae69713f0d23d6
font_01_sfnt_off0000ff5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF5E 11768 bytes
SHA-256: 41d148fae16d2f3dcf3ff9f7028758e79ce630482bda73fdce9b66c4b62d6164
font_02_sfnt_off0001261a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1261A 16100 bytes
SHA-256: e8be64a599b4775abf69106d1ea2a605297721d8ccc8071fb3d67c702b09cfa6

Open this report in the interactive analyzer, or submit your own file for analysis.