Malicious PDF — malware analysis report

Static analysis result for SHA-256 72feb70c851f2899…

MALICIOUS

PDF

74.1 KB Created: 2021-03-11 12:42:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: fdc2ff6002e48dc260fc31311edad247 SHA-1: e52989490c7cfa1a934f215f28c97210e44a9ec3 SHA-256: 72feb70c851f2899041c0ff589e21e1c353c30a9b642c84463c2d9dd2491ae2a
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains a large number of external links, suggesting a link farm or redirection mechanism. The embedded URL 'https://jottigo.ru/strik?utm_term=ravpower+fast+wireless+charger+blinking+red+light' appears to be a lure, possibly related to a product search, intended to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=ravpower+fast+wireless+charger+blinking+red+light PDF link annotation
    • http://pozufopajosel.mypressonline.com/dominos_cheese_steak_pizza_recipe.pdfIn PDF document text
    • http://pinegobojefo.getenjoyment.net/how_to_change_4_blades_on_a_honda_lawn_mower.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/pukaridimupo/xotoxutevekatuxexigedura.pdfIn PDF document text
    • https://53f03ce6-db0b-4f41-9bfc-6956ba41e1f4.filesusr.com/ugd/727e0f_b772b46f84fe49cc901780dfe53295e8.pdf?index=trueIn PDF document text
    • https://33fe1336-4051-433c-b691-b763732126dd.filesusr.com/ugd/6c8f37_2e3cf045a12f4c249e6c63903fd9133d.pdf?index=trueIn PDF document text
    • https://5e0c4d4d-41f9-428c-9564-b93e7cff6769.filesusr.com/ugd/510691_95242aa9b06b45a7aed1e7d479328d93.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/26698702730.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/gnostic_teachings_what_is_initiation.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/aphasia_book_free.pdfIn PDF document text
    • https://fb9345b8-40be-4608-a8ff-9c5427dba92f.filesusr.com/ugd/98d639_89e284c3774c4a2192f5b0e4b3b48c98.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mogedozara/50487014773.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/simple_task_list_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/bakuvu.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/58355367092.pdfIn PDF document text
    • http://lizolejixo.rf.gd/classic_shell_scripting_download.pdfIn PDF document text
    • http://nenumagurebe.rf.gd/how_to_fix_a_ge_washer_that_wont_agitate_or_spin.pdfIn PDF document text
    • http://mizebowofaz.epizy.com/42721466358.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/avg_family_center.pdfIn PDF document text
    • https://9e2b3e3a-6a02-4d3b-8ba9-5acc01041672.filesusr.com/ugd/66c878_a409240e3f0b4045910a612623c59561.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/begrung_englisch_formal.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/oxford_maths_book_for_class_6_answers.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_off0000e0bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BB 5780 bytes
SHA-256: dcc3f17072599f7a6cfcf6e175041d112541488955b9c1cb3eb8068e9146b7f1
font_01_sfnt_off0000f47b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF47B 11268 bytes
SHA-256: beed56f7bcc6a7942f28351e9442e977858ef5e92bc6065e097b901f10d11bb7

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