Malicious PDF — malware analysis report

Static analysis result for SHA-256 705ee222ad0009e7…

MALICIOUS

PDF

120.0 KB Created: 2021-03-18 13:21:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: c14f7754ca314b05a8e3a7466b114ff0 SHA-1: b9f5b0483335904496ef070058b10d8c2453b359 SHA-256: 705ee222ad0009e7a106d2c84ae9e607cb56bf72d7d77a31705d337983684b1d
156 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and ML classifiers indicated a high probability of maliciousness. The heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous external links, with one pointing to 'https://ponafet.ru/aws?utm_term=choose+your+own+adventure+netflix+black+mirror'. This suggests the document is designed to redirect users to potentially malicious websites, likely for phishing or to distribute further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/aws?utm_term=choose+your+own+adventure+netflix+black+mirror PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4498997/normal_5ff64e5ae2f91.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474736/normal_5feb45689f7a8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460476/normal_5feea82c7b3f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495558/normal_600493f2f1077.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476590/normal_5fdc5f2dd97e0.pdfIn PDF document text
    • https://xafituku.weebly.com/uploads/1/3/4/8/134863640/9984558.pdfIn PDF document text
    • https://lexolegav.weebly.com/uploads/1/3/5/3/135350326/3651f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426820/normal_600f782a85eda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407576/normal_5ff28cd80d983.pdfIn PDF document text
    • http://xudogiborijum.66ghz.com/clutterfunk_sheet_music.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447086/normal_6032c61abdee8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369794/normal_5fddf62e01ca6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407780/normal_5feee4ab30cd2.pdfIn PDF document text
    • https://xidelesa.weebly.com/uploads/1/3/4/4/134498911/jedaguwu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423443/normal_600ddb8a795f0.pdfIn PDF document text
    • https://fazidojerax.weebly.com/uploads/1/3/5/3/135328618/rabaresojumewo_nowonuj_fujuvomamaxeja.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://movutep.rf.gd/komewudamakabek.pdfIn PDF document text
    • http://dejanubotikepiw.rf.gd/kawasaki_motor_parts_list.pdfIn PDF document text
    • http://bigobawavelig.epizy.com/74277727449.pdfIn PDF document text
    • http://kenesowozowojaw.myartsonline.com/wave_warrior_sonic_exe_2_light_version.pdfIn PDF document text
    • http://dizavinizekabos.rf.gd/tedanatikejudixega.pdfIn PDF document text
    • http://xovolefewawex.atwebpages.com/white_christmas_song_snow.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_off0001981a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1981A 5692 bytes
SHA-256: c257d3a2e92b60c7dcb607c71b591e3f815c75914b6b5e93880773b2c4437bf6
font_01_sfnt_off0001ab65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AB65 11372 bytes
SHA-256: 1fe4d33a7ffc104a1113ff2616cba4ad4851b431817263bbfe922aca5e59632b

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