Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ef2ae3e608fd130…

MALICIOUS

PDF

81.9 KB Created: 2021-03-23 18:21:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 1eb120a8afdbf6b420e8b2ec2b0c0c95 SHA-1: d936c94363e7ad898c24500cd391d8f56343e3b8 SHA-256: 9ef2ae3e608fd1306dcd7f6dfda938195f58e053d70b5bc22eb5189fbb034bc8
166 Risk Score

Malware Insights

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

The PDF document contains numerous external URIs and is flagged as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The presence of a 'Password-protected archive handoff' heuristic indicates that the document likely instructs the user to obtain a password to decrypt a payload, a common tactic for evading gateway scanning. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://bologen.ru/wix?keyword=simcity+buildit+hack+tool+apk+download PDF link annotation
    • http://lilubaxubaxulu.sportsontheweb.net/1667567314.pdfIn PDF document text
    • http://loberas.22web.org/jabesazuza.pdfIn PDF document text
    • http://nufapivevavenak.22web.org/teweluvolilumanokavokiwid.pdfIn PDF document text
    • https://cdn.sqhk.co/xetokive/bjMKjiK/68214304086.pdfIn PDF document text
    • https://dedelazixuni.weebly.com/uploads/1/3/4/5/134596723/repukidevoresin-vurexafagozivuz-jowiwevabib.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/qgjnAhj/piano_tiles_2_online_game.pdfIn PDF document text
    • http://sifasawiseziwi.iblogger.org/clear_acrylic_sheet_material.pdfIn PDF document text
    • http://kozidozilujivox.getenjoyment.net/miwowubumeguf.pdfIn PDF document text
    • https://fojakodi.weebly.com/uploads/1/3/1/3/131379163/11e70a.pdfIn PDF document text
    • https://judupivaruva.weebly.com/uploads/1/3/0/7/130775992/800cde.pdfIn PDF document text
    • http://kijofizovurisos.medianewsonline.com/21982913141.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/iajf8gc/titafub.pdfIn PDF document text
    • https://toxazuna.weebly.com/uploads/1/3/0/9/130969920/vajonezezizo.pdfIn PDF document text
    • http://dapajurop.mygamesonline.org/60412167404.pdfIn PDF document text
    • http://somubuzesixuwun.getenjoyment.net/binelamanotoniguxu.pdfIn PDF document text
    • http://rovanenafet.getenjoyment.net/lemazuru.pdfIn PDF document text
    • https://cdn.sqhk.co/miwavilusaji/iEiiGgc/kovozoxel.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://povinadoli.epizy.com/71354809818.pdfIn PDF document text
    • http://nabepazefesuju.epizy.com/69725161658.pdfIn PDF document text
    • http://kafutifuvi.rf.gd/how_do_i_connect_my_logitech_m325_mouse_to_my_computer.pdfIn PDF document text
    • http://wosewusaboku.epizy.com/cellular_pathology_virchow.pdfIn PDF document text
    • http://jufamupubo.epizy.com/miwenirapujepibibujise.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF643 5304 bytes
SHA-256: 5dc851ca715a06b891e1fd237c895aaf7cc48bff40f34b8069d9a4f919d8daf1
font_01_sfnt_off0001082c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1082C 10380 bytes
SHA-256: 04a703c4c9c783e14135e6be67d45cb7395e70a366040985bfc19fb54c7f8ad3
font_02_sfnt_off00012bb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BB0 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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