Malicious PDF — malware analysis report

Static analysis result for SHA-256 386ec3f617320902…

MALICIOUS

PDF

81.2 KB Created: 2021-03-23 03:09:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9401941ca5c1a8aa35f90280a7780e7e SHA-1: 17b440fad1990df94d09e0f8e84dc7b6cb254ca8 SHA-256: 386ec3f617320902d87ce7e434551f1b3896f1c3b0c80891285efa7c41b00fb0
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://jumiwimov.ru/wix?keyword=2006+honda+civic+service+manual+pdf PDF link annotation
    • https://digeforoxega.weebly.com/uploads/1/3/4/6/134668277/d297289382.pdfIn PDF document text
    • https://demuvejujewik.weebly.com/uploads/1/3/4/0/134042515/9932239.pdfIn PDF document text
    • https://pulimogub.weebly.com/uploads/1/3/4/3/134312020/5627990.pdfIn PDF document text
    • https://pesadoxemanuz.weebly.com/uploads/1/3/4/8/134852899/6731930.pdfIn PDF document text
    • https://lovasevetoxe.weebly.com/uploads/1/3/4/4/134445156/merexozagabulesitif.pdfIn PDF document text
    • https://zosomezo.weebly.com/uploads/1/3/0/9/130969149/0b2affbde5.pdfIn PDF document text
    • https://motadali.weebly.com/uploads/1/3/4/3/134368257/jumipizukidukiraxep.pdfIn PDF document text
    • https://zavomafig.weebly.com/uploads/1/3/4/3/134356936/7d655e3f2eaf29.pdfIn PDF document text
    • https://zuwuloju.weebly.com/uploads/1/3/2/6/132681456/lipediramu-lozosezexilijaz-liseve.pdfIn PDF document text
    • https://zuwukozoxuwiged.weebly.com/uploads/1/3/4/7/134713444/jijuwivavu.pdfIn PDF document text
    • http://xonitaj.mywebcommunity.org/xizadetebe.pdfIn PDF document text
    • http://simopuvoramawu.mywebcommunity.org/22280791190.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
    • https://s3.amazonaws.com/wewiro/kisigototuxekosajewer.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/june_2019_calendar_editable_template.pdfIn PDF document text
    • http://fadudenomo.onlinewebshop.net/a_w_tozer_attributes_of_god.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/make_your_own_spelling_handwriting_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/magiwufubiruvalekajik.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/vipixe.pdfIn PDF document text
    • https://f9c380c0-3c9a-404e-8c76-a924832b335c.filesusr.com/ugd/9c8fb9_004830d73c2d450ea40c3f03813080d2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/finlandia_hall_guided_tour.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/dragon_ball_z_xenoverse_game_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/behind_enemy_lines_2001_movie_free.pdfIn PDF document text
    • http://xiniwipilanaju.atwebpages.com/78053947397.pdfIn PDF document text
    • https://181f3bdf-810f-4c34-abb3-9f3362228cd6.filesusr.com/ugd/30415f_b20ee2e3cff04639b6378ca0cca7bdd1.pdf?index=trueIn 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_off0000f0cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CC 5588 bytes
SHA-256: 85e1c1377e4eb54dcbbdaaced3c674c3e6ef4fd1591e52dd3940cb4bec78f48c
font_01_sfnt_off0001038b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1038B 10468 bytes
SHA-256: b5fed0195d6cecfac74d11036cf2b5a82a9052f167919cbe5c7f2dac71cf7556
font_02_sfnt_off0001275e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1275E 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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