Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b30cea0ce3aa223…

MALICIOUS

PDF

71.9 KB Created: 2021-06-04 08:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: fe534f7e3a09aede2dbd6368f5da8447 SHA-1: 90d49e75bc95cb3914f43525bf0e42e51bcdf512 SHA-256: 0b30cea0ce3aa223f5edee4c9ecc761a31135cd4f1c37abe5b3edc7366781180
186 Risk Score

Malware Insights

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

This PDF document was identified as malicious by a machine learning classifier and ClamAV, flagging it as a phishing trojan. It contains a large number of external links, indicating it functions as a link farm, likely to direct users to malicious sites or for SEO manipulation. The presence of embedded URLs and the nature of the heuristics strongly suggest an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://allytemp.ru/pbw?utm_term=fun+hospital+cheats+android PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4373788/normal_5fc7a53081acc.pdfIn PDF document text
    • https://kuvitarige.weebly.com/uploads/1/3/4/0/134095916/3369389.pdfIn PDF document text
    • https://nepexinis.weebly.com/uploads/1/3/1/4/131438592/ditemabepu_rizufavow_laloriguboliz.pdfIn PDF document text
    • https://donaxitod.weebly.com/uploads/1/3/4/6/134688316/8af48512cd4af.pdfIn PDF document text
    • https://fedibikora.weebly.com/uploads/1/3/4/5/134508081/ziwamarawod-joveki-ribez.pdfIn PDF document text
    • https://duveniwapawas.weebly.com/uploads/1/3/4/2/134265961/fodup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416789/normal_5fce24c492324.pdfIn PDF document text
    • https://fidumozif.weebly.com/uploads/1/3/4/7/134715024/tawiloxiv_kabefijopabes_vupinopobej_pizifom.pdfIn PDF document text
    • https://mudizuponiwox.weebly.com/uploads/1/3/2/7/132740987/muxapixut-mitukolido-ziladakowexevut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427080/normal_5ffa5149f3676.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419633/normal_5feefb2c25e31.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450037/normal_5fc572651105b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444850/normal_604bbbdbc5bd4.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/acf163e6-4423-4f5f-af69-64fe4b7cff5f/85241591935.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1f0a1a7-4e2a-4768-a8c2-42fb9a894c48/dagovokadolezogoworiduwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d89d6b71-28f2-4b9b-a570-ebd2f338c226/cobra_kai_review_season_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6134b0af-c85a-4f7b-8811-8de621e6366b/ziparamaxofipukiriwo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e39b634-644f-4d2b-8f50-cbb782d09bc9/naruto_path_of_ninja_2_ds_rom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d85da7da-6053-43f0-a42e-dacbf9da60c0/gulobevinupezitalepi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a02b80f9-76e8-4a7c-a5d2-0786aca979f3/how_to_publish_writing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ae1d9bb-1f93-4195-83d6-4fa682ee63cf/hp_probook_6470b_core_i5_price_in_kenya.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/434b4c75-d9d3-4a49-ad41-b88c63c97ae7/ar_15_magazine_release_button_stuck.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9487802d-0313-460e-814d-4a651b48aa41/dulafavesogidaposirixelir.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_off0000de9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE9A 5116 bytes
SHA-256: 44613db007ea112fe8b5183d55ea1329a192c99132ec574ea5bb64bac6dbb877
font_01_sfnt_off0000eff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF8 10004 bytes
SHA-256: 03c62fbf9416f658b1518dff43b65e57cf8bdc5fa38b160e790cb51745c8f7b9

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