Malicious PDF — malware analysis report

Static analysis result for SHA-256 093712e82263297a…

MALICIOUS

PDF

78.2 KB Created: 2021-02-28 04:09:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 43fdcea433fb4275830a5d84a64593b2 SHA-1: 54c567b04d8c8090e7d3f0008d77d5e22a82a289 SHA-256: 093712e82263297a4cb63f58585c14dbccdd8200d56b73618b92f723236c4363
164 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a 'PDF_SEO_LINK_FARM' which indicates the presence of numerous external links, with one pointing to 'https://resalured.ru/wix?keyword=bowling+king+hack+version'. This suggests a phishing or scam attempt to direct users to external content. The 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics further confirm the malicious nature of the file, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://resalured.ru/wix?keyword=bowling+king+hack+version PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4423188/normal_5ff196384fa4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413975/normal_6029a41f647c3.pdfIn PDF document text
    • https://cdn.sqhk.co/bobudozoke/fmFjhje/sijixunimedefofezurumim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403954/normal_5fd77bb153587.pdfIn PDF document text
    • https://cdn.sqhk.co/zakolemafemo/jfghgcL/car_lease_buyout_calculator_uk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419235/normal_6013352415dfd.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxolusufa/cgAidgc/maze_runner_chapter_4_summary.pdfIn PDF document text
    • https://vepodiruwa.weebly.com/uploads/1/3/4/3/134374194/375d1.pdfIn PDF document text
    • http://domastmsk.space/hyundai_sonata_2010_manualsyyrk.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/sosupejuxofedo/47267941384.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/pezovib.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/kojenuradogid.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/tuwesafogogabawafizakikaw.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/is_health_central_reliable.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/chaos_faction_1_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/comcast_dvr_box_connections.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/waledutugo.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_off0000eb67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB67 2880 bytes
SHA-256: aff11289bf87f92bc53c0e2abc335208e29b6db8a954e82fd0a5595ffa95d344
font_01_sfnt_off0000f5a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A5 5328 bytes
SHA-256: 6226e326ee95c2513e35da0909211d9a1e866f67c50caa27a3237ec7f4bd3433
font_02_sfnt_off000107df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107DF 10368 bytes
SHA-256: 7cddb0e895dd3c4c60c31076c66045c04064a24bd9ba8e7a4a2af6d95787824b

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