Malicious PDF — malware analysis report

Static analysis result for SHA-256 f02f6dd9d76e59de…

MALICIOUS

PDF

68.9 KB Created: 2021-04-05 22:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 8b29998d65015c92afa453c0c6b8a923 SHA-1: 549a09d64e09597a845c47c094f9ff93dfa78c02 SHA-256: f02f6dd9d76e59de994303ffe6e8e39d153bc5e5bb518b5bb3045caf3d1b3180
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristic 'PDF_SEO_LINK_FARM' indicates the document contains a large number of external links, with the primary suspicious URL being https://jottigo.ru/123?utm_term=autodesk+dwg+viewer+free. This suggests the document is likely part of a phishing or malware distribution campaign, using a lure of free software to direct users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • 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://jottigo.ru/123?utm_term=autodesk+dwg+viewer+free PDF link annotation
    • https://pewaruraxifazof.weebly.com/uploads/1/3/4/3/134340131/girojanobim.pdfIn PDF document text
    • http://ludesajezopaju.medianewsonline.com/33065898016.pdfIn PDF document text
    • https://tiseworadew.weebly.com/uploads/1/3/5/3/135317060/fipof.pdfIn PDF document text
    • https://wovitinukid.weebly.com/uploads/1/3/4/3/134372120/705134.pdfIn PDF document text
    • http://fegiroxopirez.sportsontheweb.net/azure_information_protection_viewer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bakoloj/can_i_use_skin_so_soft_bug_guard_on_my_dog.pdfIn PDF document text
    • https://2f2ab42d-e0b4-4bd3-aa50-2430da1ff5fc.filesusr.com/ugd/eaf48f_99f8ce062814496d8720dfe6b05b397a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/bzu_ba_bsc_date_sheet_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/building_elevation_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/leripugakodosezog.pdfIn PDF document text
    • https://9a4b5e96-23fe-4021-9525-787506808755.filesusr.com/ugd/b3318b_89121b70b4fa4a1085af977ed05e1166.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/27317507426.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/fishing_report_barnegat_inlet_nj.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/mugewowipibin.pdfIn PDF document text
    • https://60f6da8c-824c-4163-aae9-6195f2ac7ed4.filesusr.com/ugd/7f16bd_9fb563eb65574506bff6c16088331988.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bodajaku/wow_classic_alchemy_leveling_guide_alliance.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/aidells_sausage_nutrition_information.pdfIn PDF document text
    • https://520c840f-7702-4e28-87de-278da5b03b63.filesusr.com/ugd/e633b3_2d0b4557cc834fe3a24f111a9c468d0d.pdf?index=trueIn PDF document text
    • https://27a83426-c768-4525-a63d-b5b732cca755.filesusr.com/ugd/28b3f7_33577083f4424603b5b2aea54afca374.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/widarupali.pdfIn PDF document text
    • http://sisufovofow.atwebpages.com/moralikojodolisodoga.pdfIn PDF document text
    • https://s3.amazonaws.com/dusined/argumentation_schreiben_englisch_zeitform.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_off0000ce00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE00 5040 bytes
SHA-256: 3a3183243898ea00ec3ee9897d830c2e1fedb01c36a2ccb3742a5b5039891a78
font_01_sfnt_off0000df57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF57 12020 bytes
SHA-256: 7dde71e7182bad0aeaeb6f2f13f076cf4dadf1c1c20e6b7a97f665915de7edb4

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