Malicious PDF — malware analysis report

Static analysis result for SHA-256 47e787212ae9be60…

MALICIOUS

PDF

74.4 KB Created: 2021-03-28 11:45:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00f4e9af1d2460b56a8e8e1c819a380d SHA-1: 52c373bcd87b7ac8062587e8683583b1a00e7179 SHA-256: 47e787212ae9be6073c1abb9306016bc39027e77a84230d7e49512bace5a4693
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable domains, indicative of a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with techniques used to deliver second-stage payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://dugedepap.ru/123?utm_term=varus+guide+probuilds
    • http://xunetokawetik.sportsontheweb.net/sufosax.pdf
    • https://jolidezebixisu.weebly.com/uploads/1/3/3/9/133997790/07094546bf8.pdf
    • https://static.s123-cdn-static.com/uploads/4369782/normal_5fee45166f1a9.pdf
    • https://budekimezarusij.weebly.com/uploads/1/3/5/9/135964348/jikufawupedanakena.pdf
    • http://pakimudemezir.iblogger.org/50905992178.pdf
    • https://cdn-cms.f-static.net/uploads/4372072/normal_5fe6b3b1bd086.pdf
    • https://cdn-cms.f-static.net/uploads/4448547/normal_6047f48ebf8a1.pdf
    • https://cdn-cms.f-static.net/uploads/4444113/normal_600cd00a38502.pdf
    • https://masizomomom.weebly.com/uploads/1/3/2/6/132681315/niwepasot-jasis-tuzezabamulez.pdf
    • https://cdn-cms.f-static.net/uploads/4496146/normal_6034ef3e4d2dc.pdf
    • https://gomadiwisedewun.weebly.com/uploads/1/3/5/3/135314557/monezesemo.pdf
    • http://xulazawelinuze.scienceontheweb.net/2901879352.pdf
    • https://gawosiluzetur.weebly.com/uploads/1/3/4/6/134631715/mizazagukefemo_jolaviforerupi_jelosug_kebeku.pdf
    • https://kikitepolo.weebly.com/uploads/1/3/4/5/134514310/7856099.pdf
    • http://galapaniwub.iblogger.org/78751617424.pdf
    • https://ruzamugube.weebly.com/uploads/1/3/4/0/134040566/7757995.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://mapureju.epizy.com/dodumipigofimim.pdf
    • http://dowuvoduwitovos.atwebpages.com/trait_d_aix_la_chapelle.pdf
    • http://nusazonawo.epizy.com/husqvarna_sewing_machine_parts_online.pdf
    • http://sixategajufob.epizy.com/present_perfect_continuous_activities_esl.pdf
    • http://botixegaminolol.rf.gd/77515367551.pdf
    • http://widifusi.myartsonline.com/dosolupomidigani.pdf
    • http://toguxekedufu.epizy.com/wekabadod.pdf
    • http://gumigojozupe.epizy.com/os_x_catalina_slow.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8e6.bin
d1b9ffa912cdbdde4d12cc02bcb54b7893aed5001335132e640e3145509826e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E6 4928 bytes
font_01_sfnt_off0000e9a9.bin
58150e1d91ccc053ed1185c5f43f6cfdda7444e78a3ad8cac9e4b1cca2a3d9a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE9A9 10916 bytes
font_02_sfnt_off00010e2c.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E2C 4324 bytes

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