Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ec8aaf48af454fb…

MALICIOUS

PDF

90.1 KB Created: 2021-03-23 21:55:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: f37201636740bf3f7afe876b40a2b9ec SHA-1: 0e9fc42e999cf8c02c49a3b551e56d1cd0b2072f SHA-256: 1ec8aaf48af454fb4cbef96b2c5100a20092708c22b32ff6a28193e9db1b1277
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a primary suspicious URL pointing to a domain associated with malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious content, likely a phishing or malware download page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/123?utm_term=beaker+latest+mod+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366340/normal_600dab0683d14.pdfIn PDF document text
    • http://mawejufikesiruw.22web.org/tipos_de_control_de_un_plan_de_marketing.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455396/normal_5fec48d42ed0d.pdfIn PDF document text
    • http://itwomen.space/734993371985goxr.pdfIn PDF document text
    • https://xasigusuvenazuj.weebly.com/uploads/1/3/0/7/130739755/57a400f66c3f5.pdfIn PDF document text
    • http://lalat.space/jepebiwidarerefibavidera5gr07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475389/normal_6032a94467bdd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450883/normal_604d3c3e0aeb4.pdfIn PDF document text
    • http://zoompol.xyz/datasheet_flip_flop_jk_112viawz.pdfIn PDF document text
    • https://xikunozazoteta.weebly.com/uploads/1/3/1/4/131453294/sakegokobavizi.pdfIn PDF document text
    • https://mitumeme.weebly.com/uploads/1/3/4/8/134879381/sikid.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bovifuxabobi.epizy.com/xuzekefufetopipoxagiv.pdfIn PDF document text
    • http://xewenofos.epizy.com/admission_form_for_11th_class_in_delhi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa4e3c5c-45af-4b68-94fc-79f4a9340cfa/lirafugez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8fa5917-d298-4eea-bf41-94be4eba2408/98528307140.pdfIn PDF document text
    • http://balesalefune.epizy.com/azure_cli_ubuntu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf6d6725-bb14-44b1-9f37-72df36e475de/88191054030.pdfIn PDF document text
    • http://moxododokojuke.epizy.com/new_perspectives_in_archaeology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87910ed9-1f33-4782-9db7-467998a8b7ab/3357050022.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19b1d7bb-3c88-4198-8641-03bef2c064be/tivaguwozukojemo.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA42 5220 bytes
SHA-256: dab93411c88391e2044c2234beb8c693148d8341082f44283539217b1e697864
font_01_sfnt_off00010be6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BE6 4788 bytes
SHA-256: d8f7eeb936043071d0dbad233b910853b04a3d8be514bcfadc6b3d3d667dc5cc
font_02_sfnt_off00011de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DE7 11276 bytes
SHA-256: e25c3b3868f9357a037497d60f59be0ee799ed4c364adf7b03d94b9ec8a2c130
font_03_sfnt_off000144a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144A3 16036 bytes
SHA-256: 354dce64f07f3d7acdf6a04edf763950ffbfec4edcbb4bfe17b65a83544077bb

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