Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b8b11d2360385a…

MALICIOUS

PDF

76.0 KB Created: 2021-03-15 20:12:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2fd628f8551820a13047a34fe9a05e82 SHA-1: 6f849af41d28eba050731de174a22f547dd0ecdd SHA-256: e0b8b11d2360385a64acc0e14ee5062f728f54442a3118be94650d586055153e
126 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious sites. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs points towards an attempt to lead users off-site. While no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of a malicious document, likely used as a lure for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • 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/123?utm_term=doxology+sheet+music PDF link annotation
    • https://cdn.sqhk.co/nuvaratuji/WwPjaji/smash_hit_mod_apk_hack_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/nhgeggf/shipping_manager_jobs_in_canada.pdfIn PDF document text
    • https://cdn.sqhk.co/tojebaru/jfHlzif/84098823033.pdfIn PDF document text
    • https://lumigoxodavi.weebly.com/uploads/1/3/1/6/131606620/f4232ff0d02b.pdfIn PDF document text
    • https://wisenuru.weebly.com/uploads/1/3/1/8/131856959/7440826.pdfIn PDF document text
    • https://pinozawekik.weebly.com/uploads/1/3/4/5/134589254/8c2c7d4aa27315.pdfIn PDF document text
    • https://cdn.sqhk.co/gojikanemiju/jeiaics/liravukinabovilur.pdfIn PDF document text
    • https://vadopesi.weebly.com/uploads/1/3/0/7/130738994/eb33054ba7c6bd8.pdfIn PDF document text
    • https://napuraviseso.weebly.com/uploads/1/3/4/3/134322211/8f4ccaf64e257b5.pdfIn PDF document text
    • https://fikuvigobe.weebly.com/uploads/1/3/4/5/134582673/doditugo.pdfIn PDF document text
    • http://jofufunobek.sportsontheweb.net/880069099.pdfIn PDF document text
    • https://nebilewanowuz.weebly.com/uploads/1/3/6/0/136083660/kuwudefutapukafum.pdfIn PDF document text
    • https://bixavovene.weebly.com/uploads/1/3/0/7/130775743/mavumuzaresak.pdfIn PDF document text
    • https://volorizog.weebly.com/uploads/1/3/1/0/131070051/9309152.pdfIn PDF document text
    • https://vufufibujirefe.weebly.com/uploads/1/3/4/3/134355905/60a3d9c66043c27.pdfIn PDF document text
    • https://cdn.sqhk.co/gufojakig/gghfq5C/infamous_second_son_paper_trail.pdfIn PDF document text
    • https://vopenunajobip.weebly.com/uploads/1/3/2/3/132302870/zofef_zoluvenuv.pdfIn PDF document text
    • https://tesevazaxuj.weebly.com/uploads/1/3/4/4/134476418/todisununelowujurere.pdfIn PDF document text
    • http://rubewox.sportsontheweb.net/can_i_use_my_oven_like_an_air_fryer.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/d5ccf9f5-39dc-478e-a8f5-9c53430f3055/how_much_does_it_cost_to_replace_ipod_touch_screen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d97b0e4-adc3-4c22-bb81-5380d66e23e4/lenagogipuvijurugevexe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74bc0d51-3bc3-489e-9d5c-62a3e2299ad9/dehumidifier_not_collecting_water_uk.pdfIn PDF document text
    • http://kaxuwenewutexu.myartsonline.com/zimuwalexapogevaw.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_off0000ed57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED57 5076 bytes
SHA-256: 871ca56c6656692a3dc0e8601b6fbec4de74fb0c167966e67bb24ab9e636e501
font_01_sfnt_off0000fe96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE96 10564 bytes
SHA-256: ac814267cd3ba121fae6f7e2da6a38cfda302abe22a501e6b8d6efff16a899b3