Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0571753691d46e6…

MALICIOUS

PDF

70.2 KB Created: 2020-11-30 19:42:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 511a57bc0cf295c08c5e00ad1ccf86f6 SHA-1: 1a52c608d866e60c7154e9ec71b176b00726bfce SHA-256: e0571753691d46e6d203d525332c5e11dcc6ec6d2ae380cad0f5dfebc27d1e68
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a lure related to payment redirection, indicating a phishing attempt. The presence of numerous external links, including one to 'traffnew.ru', suggests the document is designed to redirect users to malicious sites. ClamAV detection and ML classification further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://traffnew.ru/aws?utm_term=karuppusamy+kuththagaithaarar+comedy+free
    • https://fexogobavube.weebly.com/uploads/1/3/4/6/134639764/324d965f1.pdf
    • https://dilopapavi.weebly.com/uploads/1/3/4/7/134705518/da5bfac7f2a0ade.pdf
    • https://badoguwogodunej.weebly.com/uploads/1/3/4/7/134713378/nemedufifedimad_tiwusilugom_jefadinoxi_pabozetata.pdf
    • https://gokixojegesefa.weebly.com/uploads/1/3/4/8/134864476/998bbc6.pdf
    • https://xujarilo.weebly.com/uploads/1/3/4/6/134693127/5789055.pdf
    • https://savumolakom.weebly.com/uploads/1/3/4/6/134617738/d516a1ead00.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfee49d104e5f152e2869/1606221541884/solubility_review_worksheet_answers.pdf
    • https://s3.amazonaws.com/donake/finding_fractions_on_a_number_line_worksheet.pdf
    • https://uploads.strikinglycdn.com/files/9c22810b-3159-4d13-9de0-56d1e152b722/32093812778.pdf
    • https://uploads.strikinglycdn.com/files/60db2aac-90be-4903-ae13-b5408de8b75d/tegebatemorajelawonotaja.pdf
    • https://uploads.strikinglycdn.com/files/1f944499-a95a-4ec8-8add-1dcd3c347286/24445096048.pdf
    • https://static1.squarespace.com/static/5fc380a327a199023ac5df36/t/5fc483cee18c5c478e8c189f/1606714320320/27161610373.pdf
    • https://uploads.strikinglycdn.com/files/8cef625c-bdbd-43c6-9631-afe42a4eb6eb/71953777679.pdf
    • https://uploads.strikinglycdn.com/files/46051c31-4e02-48a7-9e84-4d64b9585a8b/5634137917.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5bf.bin
d7f9bb1482f5c1e01666935dac2c574eddf8f828a210eee968a8859473eccd49		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD5BF 5672 bytes
font_01_sfnt_off0000e8f9.bin
0b078acb611c7b43a0c267d85d6afd6f4acbed7b79b9fae4f198f911ec698a94		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F9 10256 bytes

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