Malicious PDF — malware analysis report

Static analysis result for SHA-256 70c3e35e4fcac927…

MALICIOUS

PDF

68.7 KB Created: 2021-03-18 15:05:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5875bd80f13c7223b22e7f14816243ba SHA-1: 26df772b006c84b6371e8f3135f82d242824e9eb SHA-256: 70c3e35e4fcac9278c3503ee73b1a6dd7d5ae3d4081f238291876dc2201218d3
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 Ryobi saw. This URL is likely used to deliver a malicious payload or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent, and the presence of external URIs points to a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://mezovuduw.ru/wix?keyword=ryobi+mitre+saw+ems1825scl+manual
    • http://gvidilon.ru/pujuxumugajazeluxumafwdm6b.pdf
    • http://mxbur.fun/mejelivopj45zp.pdf
    • http://xosukesodur.22web.org/66988590241.pdf
    • http://fragcups.com/2003_hyundai_santa_fe_shop_manualmnxhh.pdf
    • http://fudetigupapafa.22web.org/cultist_simulator_guide_ios.pdf
    • http://itslm.fun/95000296965w1kvu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/magapeguwabe/hurricane_dorian_latest_report.pdf
    • http://sorotakadu.rf.gd/berkshire_encyclopedia_of_world_history_vol_3.pdf
    • http://jowelipap.epizy.com/38695309959.pdf
    • http://sirowozikuko.epizy.com/intracranial_angiomatous_malformations.pdf
    • https://s3.amazonaws.com/jaxesabi/zojakibamu.pdf
    • https://s3.amazonaws.com/makixibawumebol/weight_training_guide_book.pdf
    • http://purofix.epizy.com/directv_christmas_music_channels_2020.pdf
    • http://nuvupobo.rf.gd/pijetamakejolibinowesipo.pdf
    • http://petifogowiga.epizy.com/papopomozujawemup.pdf
    • http://nipuvaxakaxini.epizy.com/dovivatumez.pdf
    • http://paravewufazik.epizy.com/apache_tomcat_7_for_ubuntu_16._04.pdf
    • http://josuguremim.epizy.com/video_akb48_ponytail_to_shushu.pdf
    • https://uploads.strikinglycdn.com/files/f77c8b17-1e6e-42d2-957d-94b8088835fa/wokalij.pdf
    • https://uploads.strikinglycdn.com/files/87b34a93-738b-4ac8-a641-4e90590aac97/38457305694.pdf
    • http://defisunukotizid.epizy.com/7571917497.pdf
    • http://pirapisanuton.epizy.com/benoni_chess.pdf
    • https://s3.amazonaws.com/makumapikeze/free_architecture_ebook_sites.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce8d.bin
033bcf9ca0f1383877deec545bd60d332a3f05526ab14d213f59b7e5ae5e074f
pdf-font-stream PDF embedded font (sfnt) at offset 0xCE8D 5788 bytes
font_01_sfnt_off0000e24d.bin
47113f03fa8ea57fb4db4514197c46286844fb2e4654aca3302c7e0150950900
pdf-font-stream PDF embedded font (sfnt) at offset 0xE24D 10200 bytes