Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e34d829597a7f70…

MALICIOUS

PDF

84.5 KB Created: 2021-03-18 21:55:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 18625f157bf52d1f50e429be0f77c2fe SHA-1: d3e531606162d5fd7e804364dfd1846f272d95b8 SHA-256: 0e34d829597a7f70422f1a1fc79f0b02329b3f9e232645ef09aeb060e8f43187
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, appears to be a lure related to a product listing, suggesting a phishing attempt. No scripts were extracted, but the presence of external URIs indicates an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=kilner+small+manual+butter+churner
    • https://jikezukirex.weebly.com/uploads/1/3/1/3/131383594/3542792.pdf
    • http://ronifibofizet.medianewsonline.com/vatefaresusizexudoxifera.pdf
    • http://gavazode.22web.org/kajiguvun.pdf
    • http://dewisazovuvoxi.mywebcommunity.org/96326739140.pdf
    • https://disovipogazita.weebly.com/uploads/1/3/1/3/131398104/5340259.pdf
    • https://gubijebe.weebly.com/uploads/1/3/1/4/131483267/8965117.pdf
    • https://cdn-cms.f-static.net/uploads/4406481/normal_6034e14f3d37b.pdf
    • https://static.s123-cdn-static.com/uploads/4407729/normal_6007ed0b8ee75.pdf
    • https://degegoza.weebly.com/uploads/1/3/0/8/130873855/6de1dbb.pdf
    • https://rijojuno.weebly.com/uploads/1/3/5/3/135310883/sexetiwadibaxovileta.pdf
    • https://giwemonuxir.weebly.com/uploads/1/3/0/7/130775654/8991220.pdf
    • http://bitiwiz.medianewsonline.com/94589479533.pdf
    • https://fagudigozupubu.weebly.com/uploads/1/3/6/0/136042622/6473476.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rotirokarovul.rf.gd/cystic_fibrosis_pathophysiology.pdf
    • http://fivexuto.rf.gd/36810320896.pdf
    • http://sibomag.epizy.com/ruvalufudanarifujak.pdf
    • http://zujapataluzipo.epizy.com/juridad.pdf
    • https://uploads.strikinglycdn.com/files/3316829f-bbd4-47c1-8903-3f53ce9a5836/cien_aos_de_soledad_traductor_ingles.pdf
    • http://kikukuvikato.myartsonline.com/alcoholics_anonymous_12_steps.pdf
    • https://uploads.strikinglycdn.com/files/ed54a719-c580-46f9-9414-8ef83d40a67c/attack_on_titan_season_4_dub_hulu.pdf
    • https://uploads.strikinglycdn.com/files/9ce52200-bfae-4ddc-bcfb-2bfd1fd1e047/mamalewajifasid.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_off00010e00.bin
462b0c66e9c393db10174e552b909d53bf6378387cd468c5ce38ff7a1613f5bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x10E00 5148 bytes
font_01_sfnt_off00011f57.bin
cf393f91efe85635cef88a7bb0a5c5f83aad7acd1371c2131d1ef84d338f9134
pdf-font-stream PDF embedded font (sfnt) at offset 0x11F57 11136 bytes