Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e462c66049192b…

MALICIOUS

PDF

71.8 KB Created: 2021-03-20 22:01:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a752b02874d403097af2ee9fc569a024 SHA-1: daca585f6c4f7112595cd50ac7070d8f0db72f45 SHA-256: d4e462c66049192b5ba872433dcea2120202dc6cfdd8039d3b12cde56fc6ddd4
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as a manual for a 'Kidkraft metropolis train table'. This is a common social engineering tactic to trick users into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/wix?keyword=kidkraft+metropolis+train+table+manual
    • https://cdn.sqhk.co/dudurejavir/jgjhgjh/tizenodavepas.pdf
    • https://zakebixed.weebly.com/uploads/1/3/5/3/135387858/zuxalupamadulafukebo.pdf
    • https://static.s123-cdn-static.com/uploads/4412599/normal_5ff137126c5b3.pdf
    • https://cdn.sqhk.co/duwenaxiseve/vihX1hf/equalities_impact_assessment_template.pdf
    • https://gixebodaloru.weebly.com/uploads/1/3/1/3/131379223/1836998.pdf
    • https://cdn.sqhk.co/fejavegiwo/iJuiaif/clipping_plane_3ds_max.pdf
    • https://cdn-cms.f-static.net/uploads/4390637/normal_5fd1226cab763.pdf
    • https://cdn.sqhk.co/jaruxabal/jjjrjdF/54945254081.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://8569cc17-8b2a-4187-ace0-95b0550b99f0.filesusr.com/ugd/d6eede_8af02d722fc94dd9b980ce2dbc49afcc.pdf?index=true
    • https://56db2a4d-09ce-4ff6-a558-abb1d6727cd4.filesusr.com/ugd/003b86_4c2433dd6a854060809d84566bbe4e04.pdf?index=true
    • https://ce55c564-0e79-48ac-bd91-a034cff8554b.filesusr.com/ugd/bd1fc0_abc8c15b7f634e058e1e0c9b3f669492.pdf?index=true
    • https://d6d3a1c5-32ce-46e9-ae92-c5b8d84d65d9.filesusr.com/ugd/a3b54b_6a81f3fcabde4ff193e53aa55c34d411.pdf?index=true
    • https://e21f0dd0-e693-4a2a-aa38-6cab66162128.filesusr.com/ugd/34eed6_08dc52d5161e4a63abd174d12538aa70.pdf?index=true
    • https://uploads.strikinglycdn.com/files/09881f9f-0717-47c0-a21a-312a9e8c381f/50466614935.pdf
    • https://e824aeac-d22a-4b45-bb3c-17051d6ee04f.filesusr.com/ugd/de60da_29a3127278304d1695b7847263aef031.pdf?index=true
    • https://uploads.strikinglycdn.com/files/b6f4d48a-96bb-4e4e-9643-2df5e8393564/26579124519.pdf
    • https://a40b6db0-1679-4e03-879f-ac5827b9aa7d.filesusr.com/ugd/dba42a_aa61ef6a08dc4507912edd450a9bffc3.pdf?index=true
    • 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_off0000dc23.bin
6f0c886837b75a84f45aee2adb63803a29a31b1cf85039eeb692ccdb2e32dfdc
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC23 5360 bytes
font_01_sfnt_off0000ee41.bin
ca0c852f07c52b6f5d558abcf03642eeea694962a45d9d83d5000bb5c9b495e9
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE41 10348 bytes