Malicious PDF — malware analysis report

Static analysis result for SHA-256 147b0e67f07a719b…

MALICIOUS

PDF

75.0 KB Created: 2021-04-17 03:11:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 070f04fca5cefb8c3c1c198be6197f63 SHA-1: 60b4e484f80e1c80e0405074e6b4bee134f3def7 SHA-256: 147b0e67f07a719b1cfa8f04bc1a08b49215c781ad2921ee6ff2316c1c00a882
126 Risk Score

Malware Insights

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

The file was detected as malicious by multiple heuristics and a machine learning classifier, with ClamAV identifying it as Pdf.Phishing.Trojan. The PDF contains numerous embedded URLs pointing to external domains, suggesting a phishing or credential harvesting attempt. The presence of external URIs and link farm characteristics indicates an effort to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/strik?utm_term=what+is+the+theme+of+masque+of+the+red+death PDF link annotation
    • http://fugilugidijud.22web.org/68881318176.pdfIn PDF document text
    • https://folejate.weebly.com/uploads/1/3/4/9/134902611/8285194.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478687/normal_5fc8862af167d.pdfIn PDF document text
    • https://cdn.sqhk.co/vojogalu/jdfljc0/76027913915.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489981/normal_605fabbd843e9.pdfIn PDF document text
    • https://cdn.sqhk.co/reriwoduriju/7leqifu/word_stacks_3946.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426830/normal_605164bb116f0.pdfIn PDF document text
    • https://pagebuso.weebly.com/uploads/1/3/5/9/135972497/04a2d5a11a48c.pdfIn PDF document text
    • https://pazibeze.weebly.com/uploads/1/3/1/6/131636707/7797275.pdfIn PDF document text
    • https://cdn.sqhk.co/ropobemuma/6WiiKhg/vesage.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422385/normal_5ff6587690d7b.pdfIn PDF document text
    • https://ralirepiputup.weebly.com/uploads/1/3/4/8/134852471/5533422.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530910/normal_5ff2b4d387dc0.pdfIn PDF document text
    • https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/8895197.pdfIn PDF document text
    • https://vinipuzi.weebly.com/uploads/1/3/0/7/130776781/viwedigolijun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xetonuvabogo.rf.gd/capitalization_worksheets_6th_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af91893d-14c3-4031-bd3d-3f00a048d525/que_son_numerales_cardinales_y_ordinales.pdfIn PDF document text
    • http://jeguvixep.epizy.com/unit_2_worksheet_13_solving_quadratic_equations_by_completing_the_square_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c400d09-6eef-4829-a595-24b3b5d95c86/71559748543.pdfIn PDF document text
    • http://lemetebutesazof.rf.gd/29789561221.pdfIn PDF document text
    • http://zexukojol.rf.gd/21932795353.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_off0000e6ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AD 5256 bytes
SHA-256: c50ad1626ab3f01a231c756b3bc9fb82afd9120b2e2eefc2cbb0b6939871ac7c
font_01_sfnt_off0000f865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF865 10800 bytes
SHA-256: 4e599c706dd020b5d8ef907ec39f2b0f7cd829a90ac8a429fb430f2c03101979

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