Malicious PDF — malware analysis report

Static analysis result for SHA-256 afed6d9e3cccc82d…

MALICIOUS

PDF

83.9 KB Created: 2021-04-03 13:47:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 9075ffcc49b0a35388aa67d6b4738c3d SHA-1: 404de9cae41eeea87cb1965c52ba7814eadc55a6 SHA-256: afed6d9e3cccc82dc882756a5aec7238c60a3ae9c1e7df616b4ca19fae831954
126 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a website disguised as a search result for a vehicle manual. This URL, 'https://lozipotod.ru/wix?keyword=toyota+highlander+manual+2016', is likely part of a phishing or scam campaign. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further indicates that the PDF is designed to host numerous links on disposable hosting, reinforcing the malicious intent. No scripts were extracted from this sample, but the presence of external URIs and the ML classifier's high confidence score point towards a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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 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://lozipotod.ru/wix?keyword=toyota+highlander+manual+2016 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4379964/normal_600719e83bfa5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368469/normal_5fd39d8991a47.pdfIn PDF document text
    • https://cdn.sqhk.co/xudadidi/hwBihih/cutting_tool_engineering.pdfIn PDF document text
    • https://cdn.sqhk.co/dabekojov/eg8ghhb/corporate_governance_definition_cadbury_report.pdfIn PDF document text
    • https://cdn.sqhk.co/nufomewo/bdXMibn/77693919360.pdfIn PDF document text
    • http://tilosag.mypressonline.com/wotagifeke.pdfIn PDF document text
    • https://cdn.sqhk.co/tesadubozino/bLhdZk1/polow.pdfIn PDF document text
    • http://mekozeka.66ghz.com/52936522893.pdfIn PDF document text
    • http://vakotuwudar.22web.org/66213356317.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393639/normal_5fd81538ed708.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484633/normal_5ff2d8a12dd9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461763/normal_6012b78c78f2f.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/MieqYb4/gojosigonisobuvisiloweza.pdfIn PDF document text
    • http://sazinoz.mypressonline.com/des_exercices_corrigs_sur_les_bascules.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/90a80f9a-598a-4770-b5bf-888a2a91006f/dd_3.5_elder_evils.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/40590294136.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da38fb5f-9a34-4dcf-abf3-7d44270537d5/conversion_mm_a_pulgadas_fraccionarias.pdfIn PDF document text
    • https://s3.amazonaws.com/jupoti/grocery_list_template_fillable.pdfIn PDF document text
    • http://vexabimumemig.atwebpages.com/gilus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fa67f89-1d0c-4969-9cb8-c3ccb068250c/harry_potter_and_the_order_of_the_phoenix_wii_game_walkthrough.pdfIn PDF document text
    • http://fufudaloxola.onlinewebshop.net/45775691175.pdfIn PDF document text
    • http://pekanob.rf.gd/tricare_prior_authorization_form.pdfIn PDF document text
    • http://babijegogaluz.epizy.com/cask_of_amontillado_full_story.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/nirorituko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/918ad3a3-3fd3-405d-82f1-56047afe48a4/loregunutimiritexejad.pdfIn PDF document text
    • http://sipanokule.onlinewebshop.net/81014304383.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/use_apple_watch_3_with_android.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fafe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAFE 5472 bytes
SHA-256: 9bbd41018afda52cdfb1c0aab19355bff32f395a5e12aa54350a9a7c1481c3ee
font_01_sfnt_off00010d68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D68 11288 bytes
SHA-256: 3032f8e0c3114d87ebb531be96f94df11956b72c9bd56f2ac8650263607db2dd
font_02_sfnt_off000133c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133C2 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176